Dr. Jens Kobelke Profile

Dr. Jens Kobelke

Researcher at Leibniz-Institut für Photonische Technologien eV

SPIE Involvement:

Author

Publications (92)

Proceedings Article | 23 May 2023 Paper

Multiparameter sensor based on hollow square core optical fiber

João P. Santos, Diana Pereira, Jörg Bierlich, Jens Kobelke, Micael Nascimento, Marta Ferreira

Proceedings Volume 12643, 1264338 (2023) https://doi.org/10.1117/12.2678539

KEYWORDS: Tunable filters, Sensors, Silica, Reflection, Temperature metrology, Single mode fibers, Optical fibers, Fiber optics sensors, Bandpass filters, Linear filtering

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Proceedings Article | 8 March 2023 Presentation + Paper

Crystal-derived double-clad fibers for high gain and high efficiency Tm fiber lasers

Martin Leich, Robert Müller, Sonja Unger, Anka Schwuchow, Jan Dellith, Jens Kobelke, Adrian Lorenz, Matthias Jäger

Proceedings Volume 12400, 1240012 (2023) https://doi.org/10.1117/12.2650340

KEYWORDS: Fiber lasers, Crystals, Thulium, Laser crystals, Doping, Aluminum, Silica

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Proceedings Article | 25 May 2022 Presentation + Paper

Glass powder doping of nanocrystal-doped fibres: challenges and results

Dominik Dorosz, Marcin Kochanowicz, Magdalena Lesniak, Robert Müller, Martin Lorenz, Jens Kobelke, Katrin Wondraczek, Rafael Valiente, Andrea Diego-Rucabado, Israel Cano, Fernando Aguado, Jürgen Gluch, Isabel Kinski, Matthias Jäger

Proceedings Volume 12142, 1214202 (2022) https://doi.org/10.1117/12.2624448

KEYWORDS: Glasses, Crystals, Optical fibers, Luminescence, Nanocrystals, Doping, Spectroscopy, Laser crystals, Fiber lasers, Silicates

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Proceedings Article | 5 March 2021 Presentation + Paper

CARS endomicroscopic imaging probe enabled by a double-core double-clad fiber and related focus-combining micro-optical concept

Bernhard Messerschmidt, Ekaterina Pshenay-Severin, Gregor Matz, Karl Reichwald, Jörg Bierlich, Jens Kobelke, Hyeonsoo Bae, Tobias Meyer-Zedler, Michael Schmitt, Jürgen Popp

Proceedings Volume 11636, 116360A (2021) https://doi.org/10.1117/12.2578538

KEYWORDS: CARS tomography, Endoscopy, Tissues, Silica, Signal processing, Image processing, Fiber lasers, Coherence imaging, Surgery, Signal generators

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Proceedings Article | 3 October 2019 Paper

Simultaneous measurement of refractive index and temperature using a double antiresonant hollow core fiber

Marta Ferreira, Jörg Bierlich, Jens Kobelke, João Pinto, Katrin Wondraczek

Proceedings Volume 11207, 112071W (2019) https://doi.org/10.1117/12.2527473

KEYWORDS: Refractive index, Sensors, Temperature metrology, Liquids, Water, Silica, Single mode fibers, Structured optical fibers, Cladding

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Proceedings Article | 16 April 2019 Paper

OH diffusion effects at preparation of antiresonant hollow core fibers

J. Kobelke, J. Bierlich, K. Schuster, A. Lorenz, A. Hartung, A. Schwuchow, K. Wondraczek, T. Frosch, M. Schmidt

Proceedings Volume 11029, 1102904 (2019) https://doi.org/10.1117/12.2506589

KEYWORDS: Diffusion, Silica, Optical fibers

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Proceedings Article | 4 March 2019 Presentation + Paper

Hybrid sensor based on microstructured hollow-core fiber for simultaneous measurement of strain and temperature

M. Ferreira, J. Bierlich, J. Kobelke, J. Pinto, K. Schuster, K. Wondraczek

Proceedings Volume 10925, 109250Z (2019) https://doi.org/10.1117/12.2508288

KEYWORDS: Sensors, Fabry–Perot interferometers, Temperature metrology, Interferometers, Michelson interferometers, Single mode fibers, Refractive index, Fabry–Perot interferometry, Silica

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Proceedings Article | 14 March 2018 Presentation

Laser beam quality improvement of REPUSIL-based rod amplifier with local short adiabatic taper (Conference Presentation)

Yuan Zhu, Martin Lorenz, Tina Eschrich, Martin Leich, Claudia Aichele, Jens Kobelke, Hartmut Bartelt, Matthias Jäger

Proceedings Volume 10512, 105121H (2018) https://doi.org/10.1117/12.2286895

KEYWORDS: Fiber amplifiers, Amplifiers, Diffusion, Fiber lasers, Laser processing, Multimode fibers, Tapered optical fibers

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Proceedings Article | 22 August 2017 Paper

Fabry-Perot interferometer based on array of microspheres for temperature sensing

Marta Ferreira, Jörg Bierlich, Jens Kobelke, José Santos, Orlando Frazão

Proceedings Volume 10453, 1045321 (2017) https://doi.org/10.1117/12.2275658

KEYWORDS: Fabry–Perot interferometry, Sensors, Soda-lime glass, Silica, Visibility, Temperature metrology, Capillaries

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Proceedings Article | 23 April 2017 Paper

Fabry-Perot sensor based on two coupled microspheres for strain measurement

Catarina Monteiro, Jens Kobelke, Kay Schuster, Jörg Bierlich, Orlando Frazão

Proceedings Volume 10323, 103232F (2017) https://doi.org/10.1117/12.2263332

KEYWORDS: Sensors, Fabry–Perot interferometers, Fabrication, Fusion splicing, Environmental sensing, Single mode fibers, Silica, Fiber optics sensors, Temperature metrology, Optical fibers

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Proceedings Article | 22 February 2017 Presentation + Paper

High peak-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber

A. Benoit, M. A. Malleville, R. Du Jeu, R. Dauliat, D. Darwich, R. Jamier, S. Grimm, Jens Kobelke, K. Schuster, P. Roy

Proceedings Volume 10083, 100831F (2017) https://doi.org/10.1117/12.2251870

KEYWORDS: Fiber lasers, Cladding, Refractive index, Structured optical fibers, Chemical weapons, Manufacturing, Amplifiers, Picosecond phenomena, Quality measurement, Photonic crystals, Silica, Optical amplifiers, Fiber amplifiers, Medium wave

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Proceedings Article | 30 May 2016 Paper

Curvature sensor based on a Fabry-Perot interferometer

Catarina Monteiro, Marta Ferreira, Jens Kobelke, Kay Schuster, Jörg Bierlich, Orlando Frazão

Proceedings Volume 9916, 991603 (2016) https://doi.org/10.1117/12.2235215

KEYWORDS: Fabry–Perot interferometry, Sensors, Capillaries, Silica, Fusion splicing, Single mode fibers, Fabry–Perot interferometers, Head, Mechanical sensors, Optical fibers, Visibility

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Proceedings Article | 9 March 2016 Paper

High-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber

A. Benoit, R. Dauliat, D. Darwich, R. Jamier, S. Grimm, Jens Kobelke, K. Schuster, P. Roy

Proceedings Volume 9728, 97280H (2016) https://doi.org/10.1117/12.2212622

KEYWORDS: Fiber lasers, Laser development, High power fiber lasers, Cladding, Solids, Manufacturing, Silica, Laser resonators, Fiber amplifiers, Refractive index, Near field, Structured optical fibers, Glasses

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Proceedings Article | 28 September 2015 Paper

Fiber Bragg grating inscription in optical multicore fibers

Martin Becker, Tino Elsmann, Adrian Lorenz, Ron Spittel, Jens Kobelke, Kay Schuster, Manfred Rothhardt, Ines Latka, Sebastian Dochow, Hartmut Bartelt

Proceedings Volume 9634, 96343C (2015) https://doi.org/10.1117/12.2194829

KEYWORDS: Fiber Bragg gratings, Optical filters, Multimode fibers, Waveguides, Refractive index, Single mode fibers, Manufacturing, Modulation, Fiber lasers, Biomedical optics

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Proceedings Article | 28 September 2015 Paper

Measuring strain at extreme temperatures with a Fabry-Perot optical fiber sensor

Marta Ferreira, Paulo Roriz, Jörg Bierlich, Jens Kobelke, Katrin Wondraczek, Claudia Aichele, Kay Schuster, José Santos, Orlando Frazão

Proceedings Volume 9634, 96343P (2015) https://doi.org/10.1117/12.2194513

KEYWORDS: Temperature metrology, Silica, Sensors, Fabry–Perot interferometers, Single mode fibers, Annealing, Fiber optics sensors, Head, Cladding, Optical fibers

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Proceedings Article | 28 September 2015 Paper

Acetone evaporation monitoring using a caterpillar-like microstructured fiber

A. Gomes, M. Ferreira, J. Moura, R. André, S. Silva, J. Kobelke, J. Bierlich, K. Wondraczek, K. Schuster, O. Frazão

Proceedings Volume 9634, 96342R (2015) https://doi.org/10.1117/12.2194932

KEYWORDS: Sensors, Head, Liquids, Microfluidics, Micro optical fluidics, Signal processing, Single mode fibers, Structured optical fibers, Ion beams, Signal detection

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SPIE Journal Paper | 9 July 2015

Segmented cladding fiber fabricated in silica-based glass

Babita Hooda, Atasi Pal, Vipul Rastogi, Ranjan Sen, Jimit Gandhi, Jens Kobelke

OE, Vol. 54, Issue 07, 075103, (July 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.7.075103

KEYWORDS: Cladding, Silica, Glasses, Near field, Neural networks, Image segmentation, Fabrication, Optical filters, Polymers, Refractive index

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Proceedings Article | 1 July 2015 Paper

In-line chemical sensor based on C-type fiber and novel photonic crystal fibers with high sensitivity and fast dynamic response

Sahar Hosseinzadeh Kassani, Reza Khazaeinezhad, Yongmin Jung, Jens Kobelke, Kyunghwan Oh

Proceedings Volume 9655, 965512 (2015) https://doi.org/10.1117/12.2184256

KEYWORDS: Sensors, Fiber optics sensors, Photonic crystal fibers, Single mode fibers, Optical sensors, Absorption, Chemical fiber sensors, Silica, Gases, Gas sensors

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Proceedings Article | 4 March 2015 Paper

High peak power amplification in large-core all-solid Yb fibers with an index-elevated pump clad and a low numerical aperture core

M. Leich, Wenbin He, S. Grimm, J. Kobelke, Yuan Zhu, B. Müller, Jörg Bierlich, H. Bartelt, M. Jäger

Proceedings Volume 9344, 93440T (2015) https://doi.org/10.1117/12.2078738

KEYWORDS: Cladding, Optical fibers, Amplifiers, Refractive index, Aluminum, Signal attenuation, Ytterbium, Absorption, Raman scattering, Fiber amplifiers

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Proceedings Article | 20 February 2015 Paper

Demonstration of >5kW emissions with good beam quality from two different 7:1 all-glass fiber coupler-types

M. Plötner, T. Eschrich, O. de Vries, J. Kobelke, S. Unger, M. Jäger, T. Schreiber, H. Bartelt, R. Eberhardt, A. Tünnermann

Proceedings Volume 9346, 93460W (2015) https://doi.org/10.1117/12.2077580

KEYWORDS: Fiber lasers, Fiber couplers, Multimode fibers, Cladding, Fiber optics, Single mode fibers, Step index fibers, Capillaries, Silicon, Precision optics

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Proceedings Article | 2 June 2014 Paper

In-line Mach-Zehnder interferometer based on a dissimilar-doping dual-core fiber for high sensitivity strain and temperature sensing

H, Martins, J. Bierlich, K. Wondraczek, S. Unger, J. Kobelke, K. Schuster, M. Marques, M. Gonzalez-Herraez, O. Frazão

Proceedings Volume 9157, 91572C (2014) https://doi.org/10.1117/12.2059555

KEYWORDS: Interferometers, Temperature metrology, Mach-Zehnder interferometers, Germanium, Refractive index, Sensors, Phosphorus, Single mode fibers, Fiber optics sensors, Temperature sensors

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Proceedings Article | 2 June 2014 Paper

Simultaneous strain and temperature measure based on a single suspended core photonic crystal fiber

S. Rota-Rodrigo, M. López-Amo, J. Kobelke, K. Schuster, J. Santos, O. Frazão

Proceedings Volume 9157, 915721 (2014) https://doi.org/10.1117/12.2059019

KEYWORDS: Sensors, Temperature metrology, Single mode fibers, Head, Photonic crystal fibers, Optical filters, Linear filtering, Fiber optics sensors, Fringe analysis, Temperature sensors

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Proceedings Article | 2 June 2014 Paper

Control of the strain sensitivity using a suspended core photonic crystal fiber sensing head

S. Rota-Rodrigo, M. Lopez-Amo, J. Kobelke, K. Schuster, J. Santos, O. Frazão

Proceedings Volume 9157, 91571Y (2014) https://doi.org/10.1117/12.2055081

KEYWORDS: Sensors, Head, Single mode fibers, Photonic crystal fibers, Fiber optics sensors, Silica, Optical fibers, Neodymium, Photonic crystal devices, Photonic crystals

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Proceedings Article | 7 March 2014 Paper

Hyperspectral (fluorescence lifetime) imaging based on a UV-VIS enhanced supercontinuum source using high-order mode propagation

Stefano Taccheo, Raffaella Mercatelli, Silvia Soria, Cosimo D'Andrea, Kay Schuster, Andreas Bassi, Rinaldo Cubeddu, Jens Kobelke, Klaus Mörl, Giancarlo Righini, Franco Quercioli

Proceedings Volume 8972, 89720M (2014) https://doi.org/10.1117/12.2039001

KEYWORDS: Luminescence, Ultraviolet radiation, Visible radiation, Fluorescence lifetime imaging, Fluorescence resonance energy transfer, Sapphire lasers, Biomedical optics, Hyperspectral imaging, Picosecond phenomena, Supercontinuum sources

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Proceedings Article | 7 March 2014 Paper

Investigation of a large core 976nm Yb fiber laser for high brightness fiber-based pump sources

Martin Leich, Matthias Jäger, Stephan Grimm, Jan Dellith, Denny Hoh, Sylvia Jetschke, Martin Becker, Alexander Hartung, Tina Eschrich, Jens Kobelke, Hartmut Bartelt

Proceedings Volume 8961, 89610Z (2014) https://doi.org/10.1117/12.2039169

KEYWORDS: Fiber lasers, Ytterbium, Laser resonators, Fiber Bragg gratings, Refractive index, Glasses, Resonators, Fiber couplers, Diodes, Semiconductor lasers

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Proceedings Article | 7 March 2014 Paper

Optimization of laser fibers for high pump light absorption

Jörg Bierlich, Jens Kobelke, Sylvia Jetschke, Stephan Grimm, Sonja Unger, Kay Schuster

Proceedings Volume 8961, 896123 (2014) https://doi.org/10.1117/12.2039231

KEYWORDS: Optical fibers, Fiber lasers, Absorption, Glasses, Signal attenuation, Silica, Refractive index, Refraction, Laser applications, Laser glasses

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Proceedings Article | 18 November 2013 Paper

Laser processed preforms for microstructured optical fibers

Martin Becker, Marcel Werner, Oliver Fitzau, Dominik Esser, Jens Kobelke, Kay Schuster, Adrian Lorenz, Anka Schwuchow, Manfred Rothhardt, Dieter Hoffmann, Hartmut Bartelt

Proceedings Volume 8785, 8785C9 (2013) https://doi.org/10.1117/12.2023223

KEYWORDS: Laser drilling, Structured optical fibers, Fiber lasers, Fiber Bragg gratings, Micro optical fluidics, Laser applications, Glasses, Silica, Absorption, Signal attenuation

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Proceedings Article | 18 November 2013 Paper

Study of temperature sensor fiber with high germanium doped core

F. Fávero, M. Becker, R. Spittel, M. Rothhardt, J. Kobelke, H. Bartelt

Proceedings Volume 8785, 8785CC (2013) https://doi.org/10.1117/12.2026158

KEYWORDS: Germanium, Single mode fibers, Fiber Bragg gratings, Interferometers, Temperature metrology, Temperature sensors, Fiber optics sensors, Sensors, Cladding, Refractive index

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Proceedings Article | 20 May 2013 Paper

Fiber optic sensor networks based on OADM devices with a bus configuration

M. Bravo, M. Fernandez-Vallejo, M. Lopez-Amo, J. Kobelke, K. Schuster

Proceedings Volume 8794, 87943V (2013) https://doi.org/10.1117/12.2026243

KEYWORDS: Sensors, Fiber optics sensors, Sensor networks, Fiber optic networks, Multiplexing, Fiber optics, Single mode fibers, Optical networks, Remote sensing, Multiplexers

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Proceedings Article | 20 May 2013 Paper

Parallel Fabry-Pérot interferometer in suspended twin-core fiber

Ricardo André, Jens Kobelke, Kay Schuster, Hartmut Bartelt, Manuel Marques, Orlando Frazão

Proceedings Volume 8794, 87940Z (2013) https://doi.org/10.1117/12.2026778

KEYWORDS: Head, Single mode fibers, Interferometers, Visibility, Sensors, Bridges, Fiber optics sensors, Temperature sensors, Photonic crystal fibers, Neodymium

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Proceedings Article | 3 May 2013 Paper

PCF interferometer based temperature sensor with high sensitivity

F. Favero, R. Spittel, M. Rothhardt, J. Kobelke, H. Bartelt

Proceedings Volume 8774, 87741S (2013) https://doi.org/10.1117/12.2017325

KEYWORDS: Interferometers, Cladding, Sensors, Temperature sensors, Single mode fibers, Temperature metrology, Germanium, Fiber Bragg gratings, Fiber optics sensors, Refractive index

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Proceedings Article | 19 March 2013 Paper

Multi-core fiber with integrated fiber Bragg grating for background free Raman sensing

Christoph Krafft, Sebastian Dochow, Ines Latka, Martin Becker, Ron Spittel, Jens Kobelke, Kay Schuster, Manfred Rothardt, Jürgen Popp

Proceedings Volume 8577, 85770J (2013) https://doi.org/10.1117/12.2004558

KEYWORDS: Raman spectroscopy, Fiber Bragg gratings, Fiber optics, Single mode fibers, Tissues, Light scattering, Refractive index, Fiber lasers, Optical filters, Spectroscopy

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Proceedings Article | 11 March 2013 Paper

Study of lanthanum aluminum silicate glasses for passive and active optical fibers

K. Schuster, D. Litzkendorf, S. Grimm, J. Kobelke, A. Schwuchow, A. Ludwig, M. Leich, S. Jetschke, J. Dellith, J.-L. Auguste, S. Leparmentier, G. Humbert, G. Werner

Proceedings Volume 8621, 86210Q (2013) https://doi.org/10.1117/12.2004011

KEYWORDS: Glasses, Silica, Ytterbium, Fiber lasers, Lanthanum, Structured optical fibers, Cladding, Supercontinuum generation, Aluminum, Absorption

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Proceedings Article | 7 November 2012 Paper

Simultaneous measurement of strain and temperature based on clover microstructured fiber loop mirror

R. Perez-Herrera, R. André, S. Silva, M. Becker, K. Schuster, J. Kobelke, M. Lopez-Amo, J. Santos, O. Frazão

Proceedings Volume 8421, 84216W (2012) https://doi.org/10.1117/12.968585

KEYWORDS: Mirrors, Temperature metrology, Sensors, Structured optical fibers, Polarization, Birefringence, Silica, Head, Fiber optics sensors, Interferometers

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Proceedings Article | 17 October 2012 Paper

Simultaneous measurement of partial pressure of O2 and CO2 using hybrid interferometer

Paula Tafulo, L. Coelho, P. Jorge, J. Santos, Kay Schuster, Jens Kobelke, O. Frazão

Proceedings Volume 8421, 84212W (2012) https://doi.org/10.1117/12.970474

KEYWORDS: Interferometers, Carbon dioxide, Head, Sensors, Oxygen, Silica, Single mode fibers, Fabry–Perot interferometers, Refractive index, Carbon monoxide

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Proceedings Article | 17 October 2012 Paper

Temperature-independent pressure sensor using triangular-shape of suspended-core fiber

M. Zibaii, S. Nouri, J. Sadeghi, H. Latifi, P. A. Jorge, K. Schuster, Jens Kobelke, O. Frazao

Proceedings Volume 8421, 84210Z (2012) https://doi.org/10.1117/12.966321

KEYWORDS: Sensors, Head, Single mode fibers, Temperature metrology, Structured optical fibers, Cladding, Fiber optics sensors, Micro optical fluidics, Transducers, Fiber Bragg gratings

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Proceedings Article | 17 October 2012 Paper

Suspended core optical fibers for biological applications using UV wavelengths

S. Warren-Smith, G. Nie, J. Kobelke, R. Kostecki, L. Salamonsen, T. Monro

Proceedings Volume 8421, 84211E (2012) https://doi.org/10.1117/12.970611

KEYWORDS: Luminescence, Ultraviolet radiation, Optical fibers, Structured optical fibers, Micro optical fluidics, Silica, Biosensing, Sensors, Fiber coupled lasers, Fiber couplers

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Proceedings Article | 26 April 2012 Paper

Preparation and characterisation of optical fiber tips for nanoscopic applications

Jörg Bierlich, Jens Kobelke, David Brand, Konstantin Kirsch, Jan Dellith, Hartmut Bartelt

Proceedings Volume 8426, 842602 (2012) https://doi.org/10.1117/12.921460

KEYWORDS: Etching, Glasses, Silica, Optical fibers, Structured optical fibers, Doping, Annealing, Metals, Silver, Fiber coatings

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Proceedings Article | 15 February 2012 Paper

Neuronal rat cell imaging using a new UV-extended supercontinuum source

Stefano Taccheo, Silvia Soria, Cosimo D'Andrea, Kay Schuster, Andrea Bassi, Rinaldo Cubeddu, Jens Kobelke, Klaus Mörl, Gualtiero Nunzi Conti, Giancarlo Righini, Franco Quercioli

Proceedings Volume 8247, 82470D (2012) https://doi.org/10.1117/12.910381

KEYWORDS: Ultraviolet radiation, Visible radiation, Confocal microscopy, Supercontinuum sources, Microscopes, Sapphire lasers, Glia, Laser scanners, Biomedical optics, Laser sources

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Proceedings Article | 15 February 2012 Paper

Three-dimensional light bullets

S. Minardi, F. Eilenberger, Y. Kartashov, A. Szameit, U. Röpke, J. Kobelke, K. Schuster, H. Bartelt, S. Nolte, L. Torner, F. Lederer, A. Tünnermann, T. Pertsch

Proceedings Volume 8240, 82400P (2012) https://doi.org/10.1117/12.912605

KEYWORDS: Waveguides, Light wave propagation, Diffraction, Dispersion, Wave propagation, Complex systems, Silica, Nonlinear optics, Optical fibers, Solitons

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Proceedings Article | 30 November 2011 Paper

UV-laser-inscribed fiber Bragg gratings in photonic crystal fibers and sensing applications

Yiping Wang, Hartmut Bartelt, Wolfgang Ecke, Reinhardt Willsch, Jens Kobelke

Proceedings Volume 8201, 820107 (2011) https://doi.org/10.1117/12.905727

KEYWORDS: Fiber Bragg gratings, Ultraviolet radiation, Photonic crystal fibers, Fiber lasers, Sensors, Refractive index, Silica, Germanium, Optical fibers, Thermal optics

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SPIE Journal Paper | 1 October 2011

Optical refractometer based on multimode interference in a pure silica tube

Luís Coelho, Orlando Frazão, Jens Kobelke, Kay Schuster, José Santos

OE, Vol. 50, Issue 10, 100504, (October 2011) https://doi.org/10.1117/12.10.1117/1.3646393

KEYWORDS: Silica, Refractive index, Head, Single mode fibers, Multimode fibers, Liquids, Waveguides, Sensors, Fusion splicing, Temperature metrology

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Proceedings Article | 26 July 2011 Paper

Fabrication and characterization of special microstructured fibers

J. Kobelke, K. Schuster, A. Schwuchow, D. Litzkendorf, R. Spittel, J. Kirchhof, H. Bartelt

Proceedings Volume 8001, 80011H (2011) https://doi.org/10.1117/12.889104

KEYWORDS: Optical fibers, Glasses, Silica, Micro optical fluidics, Bridges, Lanthanum, Capillaries, Oxides, Refractive index, Aluminum

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Proceedings Article | 18 May 2011 Paper

Fiber Bragg grating transverse load sensors using suspended core fibers for directional dependent strain measurement

Charles Jewart, Tong Chen, Kevin Chen, Eric Lindner, Julia Fiebrandt, Manfred Rothhardt, Kay Schuster, Jens Kobelke, Hartmut Bartelt

Proceedings Volume 7753, 775373 (2011) https://doi.org/10.1117/12.885149

KEYWORDS: Fiber Bragg gratings, Birefringence, Sensors, Fiber optics sensors, Finite element methods, Structured optical fibers, Polarizers, Silica, Femtosecond phenomena, Computer simulations

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Proceedings Article | 17 May 2011 Paper

Multimodal interference based on large-core air-clad photonic crystal fibres for simultaneous measurement of multiparameters

Susana Silva, J. Santos, F. X. Malcata, Jens Kobelke, Kay Schuster, O. Frazão

Proceedings Volume 7753, 77534A (2011) https://doi.org/10.1117/12.885999

KEYWORDS: Refractive index, Structural sensing, Head, Water, Photonic crystal fibers, Single mode fibers, Temperature metrology, Structured optical fibers, Sensors, Silica

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Proceedings Article | 17 May 2011 Paper

Temperature Raman laser sensor based in a suspended-core Fabry-Perot cavity and cooperative Rayleigh scattering

A. M. Pinto, M. Lopez-Amo, J. Kobelke, K. Schuster

Proceedings Volume 7753, 77531A (2011) https://doi.org/10.1117/12.885584

KEYWORDS: Sensors, Fabry–Perot interferometers, Mirrors, Raman spectroscopy, Fiber lasers, Rayleigh scattering, Temperature metrology, Laser scattering, Single mode fibers, Temperature sensors

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Proceedings Article | 10 May 2011 Paper

Challenges in characterization of photonic crystal fibers

Krzysztof Borzycki, Jens Kobelke, Pawel Mergo, Kay Schuster

Proceedings Volume 8073, 80732M (2011) https://doi.org/10.1117/12.886964

KEYWORDS: Single mode fibers, Fusion splicing, Photonic crystal fibers, Signal attenuation, Backscatter, Solids, Polarization, Liquids, Temperature metrology, Connectors

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Proceedings Article | 10 May 2011 Paper

Preparation and characterization of microstructured silica holey fibers filled with high-index glasses

J. Kobelke, R. Spittel, D. Hoh, K. Schuster, A. Schwuchow, F. Jahn, F. Just, C. Segel, A. Hartung, J. Kirchhof, H. Bartelt

Proceedings Volume 8073, 80732F (2011) https://doi.org/10.1117/12.886243

KEYWORDS: Optical fibers, Arsenic, Glasses, Capillaries, Silica, Micro optical fluidics, Chalcogenide glass, Refractive index, Cladding, Liquids

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SPIE Journal Paper | 1 March 2011 Open Access

Simultaneous measurement of three parameters using an all-fiber Mach-Zehnder interferometer based on suspended twin-core fibers

Susana Oliveira Silva, Orlando Frazão, José Santos, Jens Kobelke, Kay Schuster

OE, Vol. 50, Issue 03, 030501, (March 2011) https://doi.org/10.1117/12.10.1117/1.3553482

KEYWORDS: Optical fibers, Head, Polarization, Interferometry, Interferometers, Birefringence, Temperature metrology, Light wave propagation, Mach-Zehnder interferometers

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Proceedings Article | 1 March 2011 Paper

Selective filling of metals into photonic crystal fibers

Ron Spittel, Denny Hoh, Sven Brückner, Anka Schwuchow, Kay Schuster, Jens Kobelke, Hartmut Bartelt

Proceedings Volume 7946, 79460Z (2011) https://doi.org/10.1117/12.874762

KEYWORDS: Metals, Gold, Capillaries, Liquids, Silica, Surface plasmon polaritons, Photonic crystals, Adhesives, Dielectrics, Phase matching

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Proceedings Article | 23 February 2011 Paper

Structured material combined HMO-silica fibers: preparation, optical and mechanical behavior

K. Schuster, J. Kobelke, D. Litzkendorf, A. Schwuchow, F. Lindner, J. Kirchhof, H. Bartelt, J.-L. Auguste, G. Humbert, J.-M. Blondy

Proceedings Volume 7934, 79340O (2011) https://doi.org/10.1117/12.873682

KEYWORDS: Optical fibers, Glasses, Silica, Refractive index, Cladding, Lanthanum, Ytterbium, Absorption, Signal attenuation, Supercontinuum generation

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Proceedings Article | 11 February 2011 Paper

Generation of UV and blue light by using off-axis pumping for fluorescence lifetime spectroscopy

S. Taccheo, C. D'Andrea, A. Bassi, R. Cubeddu, K. Schuster, J. Kobelke, K. Morl, S. Soria-Huguet, G. Nunzio Conti, G. Righini

Proceedings Volume 7925, 792507 (2011) https://doi.org/10.1117/12.872945

KEYWORDS: Luminescence, Spectroscopy, Fluorescence spectroscopy, Visible radiation, Ultraviolet radiation, Sapphire lasers, Biomedical optics, Dispersion, Light wave propagation, Bandpass filters

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Proceedings Article | 11 February 2011 Paper

New developments in high power fiber lasers based on alternative materials

Andreas Langner, Mario Such, Gerhard Schötz, Stephan Grimm, Florian Just, Martin Leich, Christian Mühlig, Jens Kobelke, Anka Schwuchow, Oliver Mehl, Olaf Strauch, Roman Niedrig, Björn Wedel, Georg Rehmann, Volker Krause

Proceedings Volume 7914, 79141U (2011) https://doi.org/10.1117/12.876978

KEYWORDS: Fiber lasers, Silica, Cladding, Signal attenuation, Refractive index, Absorption, Laser induced damage, Doping, Ytterbium, Laser development

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Proceedings Article | 14 October 2010 Paper

All fibre Mach-Zehnder interferometer based on suspended twin-core fibre for simultaneous measurement of three parameters

O. Frazão, S. F. O. Silva, J. L. Santos, J. Kobelke, K. Schuster

Proceedings Volume 7839, 78391M (2010) https://doi.org/10.1117/12.867645

KEYWORDS: Mach-Zehnder interferometers, Head, Interferometry, Interferometers, Polarization, Birefringence, Optical fibers, Sensors, Light wave propagation, Temperature metrology

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Proceedings Article | 23 September 2010 Paper

Fiber Bragg grating inscription with UV femtosecond exposure and two beam interference for fiber laser applications

Martin Becker, Sven Brückner, Eric Lindner, Manfred Rothhardt, Sonja Unger, Jens Kobelke, Kay Schuster, Hartmut Bartelt

Proceedings Volume 7750, 775015 (2010) https://doi.org/10.1117/12.871009

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Femtosecond phenomena, Hydrogen, Ultraviolet radiation, Reflection, Germanium, Mirrors, Interferometry, Femtosecond fiber lasers

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Proceedings Article | 9 September 2010 Paper

Temperature and strain independent torsion sensor using a Sagnac interferometer based on a suspended twin-core fibre

Ricardo Silva, Jens Kobelke, Kay Schuster, Orlando Frazão

Proceedings Volume 7653, 76530X (2010) https://doi.org/10.1117/12.864805

KEYWORDS: Sensors, Sagnac interferometers, Head, Temperature metrology, Fringe analysis, Refractive index, Visibility, Interferometry, Optical fibers, Mirrors

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Proceedings Article | 9 September 2010 Paper

Suspended-core Fabry-Perot temperature sensor interrogation through a dual wavelength Raman fiber laser

Ana M. R. Pinto, O. Frazão, J. L. Santos, M. Lopez-Amo, J. Kobelke, K. Schuster

Proceedings Volume 7653, 765339 (2010) https://doi.org/10.1117/12.863540

KEYWORDS: Raman spectroscopy, Fabry–Perot interferometers, Fiber lasers, Fiber Bragg gratings, Temperature metrology, Interferometry, Mirrors, Micro optical fluidics, Single mode fibers, Fiber optics sensors

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Proceedings Article | 9 September 2010 Paper

All-fibre interferometric configurations based on suspended-core fibres for pressure measurement

S. H. Aref, M. I. Zibaii, M. Kheiri, H. Porbeyram, H. Latifi, O. Frazão, F. M. Araújo, L. A. Ferreira, J. L. Santos, Jens Kobelke, Kay Schuster

Proceedings Volume 7653, 76532G (2010) https://doi.org/10.1117/12.865817

KEYWORDS: Interferometry, Head, Sagnac interferometers, Sensors, Structured optical fibers, Birefringence, Temperature metrology, Fiber optics sensors, Interferometers, Silica

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Proceedings Article | 15 May 2010 Paper

Dispersion tailored microstructured fibers: core dopant effects

J. Kobelke, K. Schuster, R. Spittel, A. Hartung, A. Schwuchow, J. Kirchhof, H. Bartelt

Proceedings Volume 7714, 771416 (2010) https://doi.org/10.1117/12.853636

KEYWORDS: Micro optical fluidics, Dispersion, Silica, Germanium, Cladding, Glasses, Waveguides, Manufacturing, Absorption, Optical fibers

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Proceedings Article | 14 May 2010 Paper

Photonic crystal fiber filled with a high index electro-optic polymer

Muralidharan Balakrishnan, Ron Spittel, Jens Kobelke, Kay Schuster, Volker Reichel, Hartmut Bartelt

Proceedings Volume 7714, 77140Q (2010) https://doi.org/10.1117/12.853880

KEYWORDS: Polymers, Solids, Capillaries, Polymer thin films, Epoxies, Electro optic polymers, Chromophores, Photonic crystal fibers, Refractive index, Electro optics

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Proceedings Article | 14 May 2010 Paper

Arc fusion splicing of photonic crystal fibers to standard single mode fibers

Krzysztof Borzycki, Jens Kobelke, Kay Schuster, Jan Wójcik

Proceedings Volume 7714, 771414 (2010) https://doi.org/10.1117/12.853909

KEYWORDS: Single mode fibers, Fusion splicing, Photonic crystal fibers, Cladding, Electrodes, Liquids, Signal attenuation, Photography, Glasses, Power meters

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Proceedings Article | 14 May 2010 Paper

Optical, thermal, and mechanical characterization of photonic crystal fibers: results and comparisons

Krzysztof Borzycki, Jens Kobelke, Kay Schuster, Jan Wójcik

Proceedings Volume 7714, 77140X (2010) https://doi.org/10.1117/12.853904

KEYWORDS: Single mode fibers, Signal attenuation, Photonic crystal fibers, Polarization, Structured optical fibers, Temperature metrology, Backscatter, Connectors, Thermography, Liquids

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Proceedings Article | 14 May 2010 Paper

Sagnac interferometer based on a suspended twin-core fibre

O. Frazão, J. Baptista, J. Santos, Jens Kobelke, Kay Schuster

Proceedings Volume 7714, 77140V (2010) https://doi.org/10.1117/12.854285

KEYWORDS: Sagnac interferometers, Head, Refractive index, Temperature metrology, Birefringence, Sensors, Cladding, Polarization, Gyroscopes, Fiber Bragg gratings

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Proceedings Article | 26 February 2010 Paper

Innovative fiber coating systems based on organic modified ceramics

Kay Schuster, Jens Kobelke, Klaus Rose, Manfred Helbig, Mohammad Zoheidi, Alexander Heinze

Proceedings Volume 7598, 75980H (2010) https://doi.org/10.1117/12.839940

KEYWORDS: Optical coatings, Fiber coatings, Fiber Bragg gratings, Optical fibers, Heat treatments, Fiber lasers, Sensors, Refractive index, Polymers, Protactinium

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Proceedings Article | 5 October 2009 Paper

Fabry-Perot cavity sensing structure based on a suspended-core fibre

O. Frazão, J. Baptista, J. Santos, J. Kobelke, K. Schuster

Proceedings Volume 7503, 75032A (2009) https://doi.org/10.1117/12.834636

KEYWORDS: Refractive index, Sensors, Fabry–Perot interferometers, Structured optical fibers, Structural sensing, Head, Visibility, Single mode fibers, Temperature metrology, Water

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Proceedings Article | 5 October 2009 Paper

Fluid-filled microstructured optical fibers and switching applications

Yiping Wang, Wei Jin, Long Jin, Xiaoling Tan, Hartmut Bartelt, Wolfgang Ecke, Klaus Moerl, Hartmut Lehmann, Jens Kobelke, Kerstin Schroeder, Reinhardt Willsch, Manfred Rothhardt, Liye Shan, Sven Brueckner, David J. Richardson

Proceedings Volume 7503, 75035W (2009) https://doi.org/10.1117/12.835040

KEYWORDS: Micro optical fluidics, Fiber Bragg gratings, Liquids, Refractive index, Microfluidics, Switches, Temperature metrology, Switching, Absorption, Structured optical fibers

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Proceedings Article | 5 October 2009 Paper

Gas sensing with suspended core fibres and hollow core band gap fibres: a comparative study

Hartmut Lehmann, Jens Kobelke, Kay Schuster, Reinhardt Willsch, Hartmut Bartelt, Rodrigo Amezcua-Correa, Jonathan Knight

Proceedings Volume 7503, 75035C (2009) https://doi.org/10.1117/12.835285

KEYWORDS: Optical fibers, Sensors, Absorption, Gases, Micro optical fluidics, Near infrared, Combustion, Liquids, Silica, Cladding

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Proceedings Article | 5 August 2009 Paper

Fiber Bragg grating inscription with DUV femtosecond exposure and two beam interference

Martin Becker, Joachim Bergmann, Sven Brückner, Eric Lindner, Manfred Rothhardt, Kay Schuster, Jens Kobelke, Sonja Unger, Hartmut Bartelt, Luis Fernandes, Paulo V. S. Marques

Proceedings Volume 7386, 73862Y (2009) https://doi.org/10.1117/12.838605

KEYWORDS: Fiber Bragg gratings, Femtosecond phenomena, Interferometers, Silica, Mirrors, Fiber lasers, Germanium, Refractive index, Glasses, Absorption

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Fiber Bragg gratings (FBGs) are today fundamental components in fiber optics. They can be used as sensors, in signal processing, e.g. telecom applications, as wavelength stabilizers in fiber lasers or in dispersion compensators. However, there are applications where the demand for fiber Bragg gratings is not compatible with standard photosensitivity techniques like germanium doping or hydrogen loading. Examples are their use as laser-mirrors in spliceless all fiber fiber-laser solutions or the fiber Bragg grating inscription in suspended core all silica fibers for evanescent field sensing. Fiber Bragg grating inscription with femtosecond-laser exposure is a challenging new method to realize grating structures for waveguides made of materials which do not provide UV-photosensitivity. Especially fs-IR-inscription has been demonstrated for Bragg grating inscription in a variety of material systems such as boron-silica glass, sapphire and pure silica glass. The feasibility of the phase mask FBG inscription technique with DUV femtosecond lasers was also shown, which allows grating inscription even in pure silica microstructured fibers. The phase mask inscription method requires that the fiber will be placed directly behind the phase mask. While the laser beam should be focused onto the fiber to support nonlinear material interaction, this inscription method also leads to phase mask degradations, presumably due to non-bridging oxygen holes (NBOH). Our solution to avoid the mask degradation is to increase the space between fiber and phase mask by using a Talbot-interferometer. Another advantage is the wavelength versatility of this inscription setup. Due to the short temporal coherence length of the femtosecond pulses, the angular alignment variability of the interferometer mirrors is limited and restrictions concerning the wavelength versatility of the interferometer arise. Grating arrays in pure silica suspended core fibers are demonstrated as an example for the versatility of the inscription arrangement.

Proceedings Article | 5 August 2009 Paper

Temperature and strain characterization of Bragg gratings impressed with femtosecond laser radiation in suspended-silica-core fibers

Luís Fernandes, Martin Becker, Orlando Frazão, Manfred Rothhardt, Sven Brückner, Kay Schuster, Jens Kobelke, José Santos, Paulo V. S. Marques

Proceedings Volume 7386, 73861N (2009) https://doi.org/10.1117/12.839641

KEYWORDS: Optical fibers, Fiber Bragg gratings, Femtosecond phenomena, Silica, Temperature metrology, Refractive index, Cladding, Germanium, Pulsed laser operation, Bridges

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Proceedings Article | 20 May 2009 Paper

Microstructured fibers with high lanthanum oxide glass core for nonlinear applications

J. Kobelke, K. Schuster, D. Litzkendorf, A. Schwuchow, J. Kirchhof, H. Bartelt, V. Tombelaine, P. Leproux, V. Couderc, A. Labruyere

Proceedings Volume 7357, 735702 (2009) https://doi.org/10.1117/12.819821

KEYWORDS: Glasses, Lanthanum, Oxides, Silica, Optical fibers, Micro optical fluidics, Cladding, Refractive index, Aluminum, Signal attenuation

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Proceedings Article | 20 May 2009 Paper

Inscription of type IIA Bragg reflectors in a highly non-linear microstructured optical fiber using deep ultraviolet laser radiation

S. Pissadakis, M. Livitziis, G. Tsibidis, J. Kobelke, K. Schuster

Proceedings Volume 7357, 73570K (2009) https://doi.org/10.1117/12.820920

KEYWORDS: Refractive index, Optical fibers, Structured optical fibers, Fiber Bragg gratings, Fiber lasers, Germanium, Micro optical fluidics, Excimer lasers, Ultraviolet radiation, Finite-difference time-domain method

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Proceedings Article | 20 May 2009 Paper

Microstrutured fibers with germanium doped core components

J. Kobelke, K. Schuster, A. Schwuchow, Y. Wang, S. Brückner, M. Becker, M. Rothhardt, J. Kirchhof, W. Ecke, R. Willsch, H. Bartelt

Proceedings Volume 7357, 735704 (2009) https://doi.org/10.1117/12.820614

KEYWORDS: Micro optical fluidics, Germanium, Optical fibers, Silica, Fiber Bragg gratings, Solids, Manufacturing, Absorption, Cladding, Ultraviolet radiation

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Proceedings Article | 16 May 2008 Paper

Sensing and splicing applications of small core Ge-doped photonic crystal fibers

Yiping Wang, Sven Brueckner, Jens Kobelke, Manfred Rothhardt, Wolfgang Ecke, Reinhardt Willsch, Hartmut Bartelt

Proceedings Volume 7004, 70041S (2008) https://doi.org/10.1117/12.785846

KEYWORDS: Single mode fibers, Fiber Bragg gratings, Fusion splicing, Photonic crystal fibers, Sensors, Reflectivity, Hydrogen, Interfaces, Temperature metrology, Spherical lenses

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Proceedings Article | 16 May 2008 Paper

Microstructured index-guiding fibers with large cladding holes for evanescent field chemical sensing

Hartmut Lehmann, Jens Kobelke, Kay Schuster, Anka Schwuchow, Reinhardt Willsch, Hartmut Bartelt

Proceedings Volume 7004, 70042R (2008) https://doi.org/10.1117/12.786012

KEYWORDS: Optical fibers, Bridges, Cladding, Liquids, Micro optical fluidics, Absorption, Biological and chemical sensing, Structured optical fibers, Gases, Sensors

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Proceedings Article | 9 May 2008 Paper

Ytterbium-doped fibre lasers with tailored all-solid microstructured cladding

S. Février, L. Lavoute, D. Gaponov, M. Devautour, Ph. Roy, R. Jamier, K. Schüster, J. Kobelke, S. Grimm, S. Semjonov, M. Likhachev, M. Bubnov, E. Dianov, Mikhail Yu. Yashkov, V. Khopin, M. Salganskii, A. Guryanov

Proceedings Volume 6990, 69900M (2008) https://doi.org/10.1117/12.781313

KEYWORDS: Cladding, Fiber lasers, Ions, Refractive index, Silica, Signal attenuation, Mirrors, Distortion, Optical filters, High power fiber lasers

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Proceedings Article | 9 May 2008 Paper

Methods for visible supercontinuum generation in doped/undoped holey fibres

P. Leproux, C. Buy-Lesvigne, V. Tombelaine, V. Couderc, J. L. Auguste, J. M. Blondy, G. Mélin, K. Schuster, J. Kobelke, H. Bartelt

Proceedings Volume 6990, 699007 (2008) https://doi.org/10.1117/12.781337

KEYWORDS: Supercontinuum generation, Visible radiation, Structured optical fibers, Supercontinuum sources, Biomedical optics, Silica, Photonic crystal fibers, Sum-frequency generation, Nonlinear optics, Nd:YAG lasers

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Proceedings Article | 22 April 2008 Paper

Second harmonic generation in Ge-doped silica holey fibres and supercontinuum generation

Vincent Tombelaine, Christelle Buy-Lesvigne, Vincent Couderc, Philippe Leproux, Gilles Mélin, Kay Schuster, Jens Kobelke, Hartmut Bartelt

Proceedings Volume 6990, 69900N (2008) https://doi.org/10.1117/12.781369

KEYWORDS: Second-harmonic generation, Infrared radiation, Visible radiation, Harmonic generation, Polarization, Supercontinuum generation, Micro optical fluidics, Silica, Near field optics, Raman scattering

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Proceedings Article | 22 April 2008 Paper

Multicomponent glass microstructured fibers for nonlinear applications

J. Kobelke, K. Schuster, S. Grimm, D. Litzkendorf, J. Kirchhof, A. Schwuchow, H. Bartelt, A. Gebhardt

Proceedings Volume 6990, 699005 (2008) https://doi.org/10.1117/12.780172

KEYWORDS: Glasses, Optical fibers, Silica, Cladding, Lanthanum, Germanium, Oxides, Capillaries, Aluminum, Signal attenuation

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Proceedings Article | 22 May 2007 Paper

Preparation and applications of germanium and fluorine doped microstructured fibers

K. Schuster, J. Kobelke, A. Schwuchow, M. Leich, M. Becker, M. Rothhardt, U. Röpke, J. Kirchhof, H. Bartelt, T. Geernaert

Proceedings Volume 6588, 658804 (2007) https://doi.org/10.1117/12.722470

KEYWORDS: Optical fibers, Germanium, Silica, Cladding, Capillaries, Micro optical fluidics, Glasses, Waveguides, Fluorine, Fiber Bragg gratings

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Proceedings Article | 22 February 2007 Paper

Preparation of large-mode-area laser fibers with microstructured cores

Jens Kobelke, Kay Schuster, Sonja Unger, Volker Reichel, Anka Schwuchow, Klaus Mörl, Johannes Kirchhof, Martin Leich

Proceedings Volume 6453, 64531T (2007) https://doi.org/10.1117/12.698985

KEYWORDS: Optical fibers, Cladding, Ytterbium, Absorption, Signal attenuation, Refractive index, Fiber lasers, Fluorine, Silica, Phosphorus

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Proceedings Article | 1 March 2006 Paper

Refractive index and geometrical structure measurement of a core-doped photonic crystal fiber

Y. Youk, S. Kim, K. Oh, J. Kobelke, K. Schuster, J. Kirchhof, D. Kim

Proceedings Volume 6128, 61281P (2006) https://doi.org/10.1117/12.645723

KEYWORDS: Refractive index, Confocal microscopy, Sensors, Optical fibers, Photonic crystal fibers, Profiling, Light emitting diodes, Reflectivity, Waveguides, Signal detection

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Proceedings Article | 23 September 2005 Paper

Materials and technologies for microstructured high power laser fibers

J. Kirchhof, S. Unger, J. Kobelke, K. Schuster, K. Mörl, S. Jetschke, A. Schwuchow

Proceedings Volume 5951, 595107 (2005) https://doi.org/10.1117/12.622667

KEYWORDS: Optical fibers, Fiber lasers, Doping, Cladding, Refractive index, Absorption, Ytterbium, Boron, Solids, Aluminum

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Proceedings Article | 23 May 2005 Paper

Toward photonic crystal fiber based distributed chemosensors

Hartmut Lehmann, Sven Brueckner, Jens Kobelke, Guenter Schwotzer, Kay Schuster, Reinhardt Willsch

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623667

KEYWORDS: Structured optical fibers, Sensors, Gas sensors, Solids, Fiber optics sensors, Cladding, Photonic crystal fibers, Capillaries, Laser drilling, Methane

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Proceedings Article | 23 March 2005 Paper

High NA-fibers: silica-based fibers for new applications

Karl-Friedrich Klein, Hanns Eckhardt, Christiane Vincze, Stephan Grimm, Johannes Kirchhof, Jens Kobelke, Jim Clarkin, Gary Nelson

Proceedings Volume 5691, (2005) https://doi.org/10.1117/12.591683

KEYWORDS: Optical fibers, Cladding, Bridges, Silica, Signal attenuation, Polymers, Refractive index, Solids, Molecular bridges, Sodium

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Proceedings Article | 25 October 2004 Paper

Optical properties of microstructured optical fibers

Klaus Morl, Hans-Rainer Muller, Johannes Kirchhof, Jens Kobelke, Kirsten Gerth, Kay Schuster, Hartmut Bartelt

Proceedings Volume 5595, (2004) https://doi.org/10.1117/12.579736

KEYWORDS: Optical fibers, Dispersion, Capillaries, Cladding, Optical properties, Silica, Waveguides, Glasses, Solids, Structured optical fibers

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Proceedings Article | 9 July 2004 Paper

Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)

Jens Kobelke, Kirsten Gerth, Johannes Kirchhof, Kay Schuster, Klaus Moerl, Claudia Aichele

Proceedings Volume 5360, (2004) https://doi.org/10.1117/12.527718

KEYWORDS: Optical fibers, Water, Silica, Absorption, Solids, Capillaries, Signal attenuation, Cladding, Liquids, Photonic crystal fibers

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Proceedings Article | 1 August 2003 Paper

Spectral staining of tumor tissue by fiber optic FTIR spectroscopy

Reiner Salzer, Gerald Steiner, Angelique Kano, Tom Richter, Ralf Bergmann, Heike Rodig, Bernd Johannsen, Jens Kobelke

Proceedings Volume 5047, (2003) https://doi.org/10.1117/12.484153

KEYWORDS: Tumors, Silver, Tissues, Chalcogenides, FT-IR spectroscopy, Spectroscopy, Infrared radiation, Bromine, Optical fibers, Fiber optics

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Proceedings Article | 5 April 2002 Paper

Gain, damage, and recovery at 1.3 um in Pr3+-doped arsenic sulfide fibers

Sylvia Jetschke, Anka Schwuchow, Jens Kobelke, Kay Schuster, Johannes Kirchhof

Proceedings Volume 4645, (2002) https://doi.org/10.1117/12.461660

KEYWORDS: Optical fibers, Glasses, Signal attenuation, Arsenic, Luminescence, Single mode fibers, Switching, Signal processing, Praseodymium, Gallium

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Proceedings Article | 26 March 2002 Paper

Probing brain cancer by fiber optic FTIR spectroscopy

Gerald Steiner, Angelique Kano, Tom Richter, Ralf Bergmann, Heike Rodig, Jens Kobelke, Bernd Johannsen, Reiner Salzer

Proceedings Volume 4616, (2002) https://doi.org/10.1117/12.463822

KEYWORDS: Silver, Chalcogenides, Tumors, Tissues, FT-IR spectroscopy, Spectroscopy, Principal component analysis, Optical fibers, Infrared radiation, Fiber optics

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