Dr. Robert Andrew Sims Profile

Dr. Robert Andrew Sims

Sr. Research Scientist at Lockheed Martin Coherent Technologies

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 22 March 2013 Paper

Chirped pulse amplification in Tm doped fiber using a chirped Bragg grating

Robert Andrew Sims, Pankaj Kadwani, Lawrence Shah, Martin Richardson

Proceedings Volume 8601, 86012P (2013) https://doi.org/10.1117/12.2004112

KEYWORDS: Fiber Bragg gratings, Mode locking, Thulium, Fiber lasers, Oscillators, Phase modulation, Fiber amplifiers, Optical isolators, Femtosecond phenomena, Solitons

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Proceedings Article | 7 May 2012 Paper

Modal properties of photonic crystal fiber for high-power two micron fiber laser systems

C. Jollivet, T. Alkeskjold, L. Leick, P. Kadwani, R. Sims, L. Shah, M. Richardson, R. Amezcua Correa, A. Schülzgen

Proceedings Volume 8381, 838105 (2012) https://doi.org/10.1117/12.921585

KEYWORDS: Fiber lasers, Laser systems engineering, Fourier transforms, Photonic crystal fibers, Cladding, Neodymium, Optical fibers, Ions, Photonic crystals, Laser development

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Proceedings Article | 7 May 2012 Paper

CW and pulsed performance of Tm-doped photonic crystal fiber lasers

Pankaj Kadwani, R. Andrew Sims, Lasse Leick, Jes Broeng, Lawrence Shah, Martin Richardson

Proceedings Volume 8381, 83811F (2012) https://doi.org/10.1117/12.925408

KEYWORDS: Fiber lasers, Q switching, Thulium, Photonic crystal fibers, Continuous wave operation, Oscillators, Cladding, Mirrors, Pulsed laser operation, Polarization

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Proceedings Article | 7 May 2012 Paper

Integrated 100 W thulium fiber MOPA system

Lawrence Shah, R. Andrew Sims, Pankaj Kadwani, Christina C. Willis, Joshua Bradford, Zachary Roth, Aaron Pung, Menelous Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 8381, 83810Z (2012) https://doi.org/10.1117/12.925411

KEYWORDS: Phase modulation, Oscillators, Fiber lasers, Fiber amplifiers, Optical amplifiers, Polarization, Optical isolators, Thulium, System integration, Amplifiers

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Proceedings Article | 16 February 2012 Paper

Integrated 100-W polarized narrow linewidth thulium fiber MOPA system

Lawrence Shah, R. Andrew Sims, Pankaj Kadwani, Christina C. Willis, Joshua Bradford, Zachary Roth, Aaron Pung, Menelaos Poutous, Eric Johnson, Martin Richardson

Proceedings Volume 8237, 82371M (2012) https://doi.org/10.1117/12.909292

KEYWORDS: Oscillators, Phase modulation, Optical amplifiers, Polarization, Diodes, Amplifiers, Thulium, Fiber lasers, Fiber amplifiers, High power fiber amplifiers

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Proceedings Article | 16 February 2012 Paper

Q switched PM Tm: fiber laser oscillator for mid-IR generation

Pankaj Kadwani, R. Andrew Sims, Lawrence Shah, Martin Richardson

Proceedings Volume 8237, 82373G (2012) https://doi.org/10.1117/12.909332

KEYWORDS: Fiber lasers, Oscillators, Thulium, Q switching, Q switched fiber lasers, Phase modulation, Mid-IR, Photonics, Cladding, Laser applications

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Proceedings Article | 16 February 2012 Paper

Lasing in thulium doped polarizing photonic crystal fibers (PCF)

Pankaj Kadwani, Norbert Modsching, R. Andrew Sims, Lasse Leick, Jes Broeng, Lawrence Shah, Martin Richardson

Proceedings Volume 8237, 82372Z (2012) https://doi.org/10.1117/12.909440

KEYWORDS: Thulium, Polarization, Cladding, Absorption, Fiber lasers, Oscillators, Photonic crystal fibers, Optical pumping, Mid-IR, Laser systems engineering

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Proceedings Article | 7 February 2012 Paper

High-power transmission characterization of Chalcogenide glasses using a Tm:fiber laser system

Pankaj Kadwani, Joshua Bradford, R. Andrew Sims, David Musgraves, Kathleen Richardson, Lawrence Shah, Martin Richardson

Proceedings Volume 8239, 82390A (2012) https://doi.org/10.1117/12.909505

KEYWORDS: Silica, High power lasers, Chalcogenide glass, Laser systems engineering, Selenium, Fiber lasers, Semiconductor lasers, Near infrared, Thermal optics, Absorption

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Proceedings Article | 4 June 2011 Paper

Generation and amplification of femtosecond pulses in Tm:fiber

R. Andrew Sims, Pankaj Kadwani, Lawrence Shah, Martin Richardson

Proceedings Volume 8039, 80390K (2011) https://doi.org/10.1117/12.886422

KEYWORDS: Oscillators, Raman spectroscopy, Thulium, Mode locking, Solitons, Fiber lasers, Optical amplifiers, Femtosecond phenomena, Optical filters, Fiber amplifiers

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Proceedings Article | 26 May 2011 Paper

Monolithic narrow linewidth polarization-maintaining thulium fiber laser using femtosecond laser written fiber Bragg gratings

Christina C. Willis, Joshua Bradford, R. Andrew Sims, Lawrence Shah, Martin Richardson, Jens Thomas, Ria Becker, Christian Voigtländer, Andreas Tünnermann, Stefan Nolte

Proceedings Volume 8039, 80390H (2011) https://doi.org/10.1117/12.885989

KEYWORDS: Fiber Bragg gratings, Polarization, Fiber lasers, Reflectivity, YAG lasers, Femtosecond phenomena, Laser systems engineering, Optical components, Optical fibers, Phase modulation

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Proceedings Article | 26 May 2011 Paper

Atmospheric gas detection using broadband mid-IR thulium fiber-based sources

Pankaj Kadwani, Robert Sims, Jeffrey Chia, Falah Altal, Lawrence Shah, Martin Richardson

Proceedings Volume 8039, 80390L (2011) https://doi.org/10.1117/12.887020

KEYWORDS: Superluminescent sources, Carbon dioxide, Absorption, Atmospheric sensing, Atmospheric optics, Raman spectroscopy, Optical amplifiers, Thulium, Mid-IR, Optical components

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Proceedings Article | 22 February 2011 Paper

Generation and amplification of 350 fs, 2 µm pulses in Tm:fiber

R. Andrew Sims, Pankaj Kadwani, Lawrence Shah, Martin Richardson

Proceedings Volume 7914, 79141L (2011) https://doi.org/10.1117/12.877765

KEYWORDS: Oscillators, Raman spectroscopy, Amplifiers, Thulium, Mode locking, Dispersion, Fiber lasers, Optical filters, Picosecond phenomena, Modulation

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Proceedings Article | 11 February 2011 Paper

All-fiber single-mode PM thulium fiber lasers using femtosecond laser written fiber Bragg gratings

Christina C. Willis, Joshua Bradford, R. Andrew Sims, Lawrence Shah, Martin Richardson, Jens Thomas, Ria Becker, Christian Voigtländer, Andreas Tünnermann, Stefan Nolte

Proceedings Volume 7914, 79140I (2011) https://doi.org/10.1117/12.877795

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Polarization, Phase modulation, YAG lasers, Thulium, Continuous wave operation, Femtosecond phenomena, Laser systems engineering, Birefringence

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Proceedings Article | 10 February 2011 Paper

Atmospheric absorption spectroscopy using Tm: fiber sources around two microns

Pankaj Kadwani, Jeffrey Chia, Faleh Altal, Robert Sims, Christina Willis, Lawrence Shah, Dennis Killinger, Martin Richardson

Proceedings Volume 7924, 79240L (2011) https://doi.org/10.1117/12.875167

KEYWORDS: Raman spectroscopy, Carbon dioxide, Absorption, Superluminescent sources, Thulium, Fiber amplifiers, Optical amplifiers, Absorption spectroscopy, Oscillators, Optical fibers

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