Prof. Ken-ichi Ueda
Professor and Lab Director at Univ. of Electro Communications
SPIE Involvement:
Author
Publications (57)

Proceedings Article | 13 March 2024 Presentation
Jumpei Ogino, Koji Tsubakimoto, Hidetsugu Yoshida, Shinji Motokoshi, Noboru Morio, Keiko Matsumoto, Kana Fujioka, Shigeki Tokita, Noriaki Miyanaga, Ken-ichi Ueda, Ryousuke Kodama, Akifumi Yogo, Junji Kawanaka
Proceedings Volume PC12864, PC128640B (2024) https://doi.org/10.1117/12.3005462
KEYWORDS: Laser crystals, High power lasers, Radiotherapy, Pulsed laser operation, Laser therapeutics, Laser energy, Heatsinks, Disk lasers, Cryogenics, Wavefront distortions

Proceedings Article | 16 February 2012 Paper
Proceedings Volume 8237, 82371H (2012) https://doi.org/10.1117/12.908391
KEYWORDS: Raman spectroscopy, Fiber amplifiers, Amplifiers, Acoustics, Optical amplifiers, Fiber lasers, Optical isolators, Laser scattering, Scattering, Ytterbium

Proceedings Article | 17 February 2010 Paper
Proceedings Volume 7580, 758013 (2010) https://doi.org/10.1117/12.845938
KEYWORDS: Fiber amplifiers, Fiber lasers, Amplifiers, Ytterbium, Cladding, Second-harmonic generation, Harmonic generation, Semiconductor lasers, Laser applications, Raman spectroscopy

Proceedings Article | 20 February 2007 Paper
Jun Dong, Akira Shirakawa, Ken-ichi Ueda, Hideki Yagi, Takagimi Yanagitani, Alexander Kaminskii
Proceedings Volume 6451, 645118 (2007) https://doi.org/10.1117/12.699056
KEYWORDS: Ceramics, YAG lasers, Chromium, Absorption, Ytterbium, Q switched lasers, Output couplers, Pulsed laser operation, Picosecond phenomena, Laser applications

Proceedings Article | 8 September 2006 Paper
Jianlang Li, Mitsuru Musha, Akira Shirakawa, Ken-ichi Ueda
Proceedings Volume 6310, 63100G (2006) https://doi.org/10.1117/12.683812
KEYWORDS: Fiber lasers, Bistability, Ytterbium, Absorption, Wavelength division multiplexing, Fiber Bragg gratings, Fiber optic communications, Fiber optics, Laser optics, Free space optics

Proceedings Article | 8 June 2006 Paper
Takuya Nayuki, Takashi Fujii, Yuji Oishi, Kei Takano, Xiaofang Wang, Alexander Andreev, Koshichi Nemoto, Ken-ichi Ueda
Proceedings Volume 6018, 60180F (2006) https://doi.org/10.1117/12.669278

Proceedings Article | 5 December 2005 Paper
Proceedings Volume 6020, 60201C (2005) https://doi.org/10.1117/12.634969
KEYWORDS: Absorption, Pulsed laser operation, Numerical simulations, Q switched lasers, Crystals, Hole burning spectroscopy, Semiconductor lasers, Chromium, Continuous wave operation, Laser crystals

Proceedings Article | 22 April 2005 Paper
Proceedings Volume 5709, (2005) https://doi.org/10.1117/12.590328
KEYWORDS: Fiber lasers, Fiber couplers, Reflectivity, Beam controllers, Resonators, Fiber Bragg gratings, Wavelength division multiplexing, Laser resonators, Laser damage threshold, Electro optics

Proceedings Article | 22 April 2005 Paper
Proceedings Volume 5709, (2005) https://doi.org/10.1117/12.590401
KEYWORDS: Fiber lasers, Raman spectroscopy, Continuous wave operation, Supercontinuum generation, Absorption, Fiber Bragg gratings, Supercontinuum sources, Modulation, Four wave mixing

Proceedings Article | 23 March 2005 Paper
Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611229
KEYWORDS: Nitrogen, Ceramics, Liquids, Helium, Solid state lasers, Femtosecond phenomena, Crystals, Argon, Absorption, Fiber optic gyroscopes

Proceedings Article | 23 March 2005 Paper
Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611030
KEYWORDS: Crystals, Laser crystals, Semiconductor lasers, Optical amplifiers, Pulsed laser operation, Copper, Sapphire lasers, Liquid crystals, Diodes, Liquids

Proceedings Article | 8 October 2004 Paper
Proceedings Volume 5662, (2004) https://doi.org/10.1117/12.596366
KEYWORDS: Fiber lasers, Fiber couplers, Beam controllers, Reflectivity, Resonators, Laser resonators, Single mode fibers, Fiber Bragg gratings, Laser applications, Laser processing

Proceedings Article | 15 September 2004 Paper
Yan Feng, Jianren Lu, Shenghong Wang, Ken-ichi Ueda
Proceedings Volume 5450, (2004) https://doi.org/10.1117/12.544940
KEYWORDS: Random lasers, Mirrors, Nd:YAG lasers, Neodymium, Semiconductor lasers, Backscatter, Laser damage threshold, Laser scattering, Scattering, Coating

Proceedings Article | 7 April 2004 Paper
Yuri Senatsky, Akira Shirakawa, Y. Sato, J. Hagiwara, Jianren Lu, Kichi Ueda, H. Yagi, T. Yanagitani
Proceedings Volume 5478, (2004) https://doi.org/10.1117/12.558509
KEYWORDS: Ceramics, Laser applications, Refractive index, Crystals, Laser crystals, Nonlinear crystals, Laser development, High power lasers, Pulsed laser operation, Laser spectroscopy

Proceedings Article | 10 November 2003 Paper
Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515525
KEYWORDS: Crystals, Optical amplifiers, Laser crystals, Semiconductor lasers, Mirrors, Laser systems engineering, Laser development, Sapphire lasers, High power lasers, Reflectors

Proceedings Article | 6 October 2003 Paper
Atsushi Taniguchi, Tetsuro Kuwayama, Akira Shirakawa, Mitsuru Musha, Ken-ichi Ueda, Mahendra Prabhu
Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.517936
KEYWORDS: Fiber lasers, Optical fibers, Ions, Wavelength division multiplexing, Fiber couplers, Raman spectroscopy, Single mode fibers, Fiber Bragg gratings, Absorption, Neodymium

SPIE Journal Paper | 1 September 2003
OE, Vol. 42, Issue 09, (September 2003) https://doi.org/10.1117/12.10.1117/1.1593662
KEYWORDS: Absorption, Cladding, Fiber lasers, Wave propagation, Optical engineering, Lutetium, 3D modeling, Refractive index, Differential equations, Chemical elements

Proceedings Article | 19 February 2003 Paper
Hitoki Yoneda, Satoru Ohta, Ken-ichi Ueda, Richard More
Proceedings Volume 4830, (2003) https://doi.org/10.1117/12.486507
KEYWORDS: Reflectivity, Laser beam diagnostics, Aluminum, Plasmas, Optical properties, Data modeling, Solids, Absorption, Pulsed laser operation, Skin

Proceedings Article | 5 September 2002 Paper
Jian Kong, Ding Tang, Deyuan Shen, Jianren Lu, K. Takaichi, T. Uematsu, Ken-ichi Ueda, Hideki Yagi, T. Yanagitani, Alexander Kaminskii
Proceedings Volume 4914, (2002) https://doi.org/10.1117/12.481803
KEYWORDS: Ceramics, Crystals, Laser crystals, Semiconductor lasers, Absorption, Nd:YAG lasers, Neodymium, Ytterbium, Laser damage threshold, Glasses

Proceedings Article | 10 June 2002 Paper
Proceedings Volume 4618, (2002) https://doi.org/10.1117/12.491320
KEYWORDS: Tomography, Ultrasonography, Transducers, Modulation, Ultrasonics, Tissue optics, Image resolution, Photons, Avalanche photodetectors, Laser optics

Proceedings Article | 6 June 2002 Paper
Proceedings Volume 4612, (2002) https://doi.org/10.1117/12.469348
KEYWORDS: Tumors, Chemiluminescence, Oxygen, Ultrasonography, Tissues, Ultrasonics, In vitro testing, Sonoluminescence, In vivo imaging, Diagnostics

Proceedings Article | 29 October 2001 Paper
Deyuan Shen, Ding Tang, Siu Chung Tam, Ken-ichi Ueda
Proceedings Volume 4595, (2001) https://doi.org/10.1117/12.446630
KEYWORDS: YAG lasers, Chromium, Laser crystals, Q switched lasers, Absorption, Semiconductor lasers, Crystals, Nd:YAG lasers, Laser development, High power lasers

Proceedings Article | 29 October 2001 Paper
Proceedings Volume 4594, (2001) https://doi.org/10.1117/12.446553
KEYWORDS: Fiber couplers, Fiber lasers, Polishing, Optical pumping, Adhesives, Cladding, Interfaces, Fiber to the x, Neodymium, Helium neon lasers

Proceedings Article | 25 October 2001 Paper
Proceedings Volume 4597, (2001) https://doi.org/10.1117/12.446658
KEYWORDS: Oxygen, Tumors, Chemiluminescence, In vivo imaging, In vitro testing, Ultrasonography, Tissues, Stereolithography, Amplifiers, Photons

Proceedings Article | 25 October 2001 Paper
Proceedings Volume 4597, (2001) https://doi.org/10.1117/12.446638
KEYWORDS: Tomography, Ultrasonography, Transducers, Ultrasonics, Tissue optics, Image resolution, Modulation, Photons, Tissues, Fiber lasers

Proceedings Article | 1 May 2001 Paper
Proceedings Volume 4268, (2001) https://doi.org/10.1117/12.424629
KEYWORDS: Raman spectroscopy, Fiber Bragg gratings, Fiber lasers, Single mode fibers, Continuous wave operation, Mirrors, Reflectivity, Supercontinuum generation, Optical fibers, Fiber optics

Proceedings Article | 24 April 2001 Paper
Jianqiu Xu, Jianren Lu, Mahendra Prabhu, Ken-ichi Ueda
Proceedings Volume 4270, (2001) https://doi.org/10.1117/12.424659
KEYWORDS: Fiber lasers, Reflectivity, Output couplers, Semiconductor lasers, Absorption, Objectives, Optical fibers, Mirrors, Fabry–Perot interferometers, Thulium

Proceedings Article | 16 April 2001 Paper
Jianren Lu, T. Murai, K. Takaichi, T. Uematsu, K. Misawa, Ken-ichi Ueda, Hideki Yagi, T. Yanagitani, Alexander Kaminskii
Proceedings Volume 4267, (2001) https://doi.org/10.1117/12.424620
KEYWORDS: Ceramics, Nd:YAG lasers, Laser crystals, Crystals, Neodymium, Mirrors, Optical pumping, High power lasers, Virtual point source, Continuous wave operation

Proceedings Article | 25 January 2001 Paper
Jianren Lu, Mahendra Prabhu, Ken-ichi Ueda, Hideki Yagi, T. Yanagitani, Alexis Kudryashov
Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414093
KEYWORDS: Ceramics, Nd:YAG lasers, Crystals, Laser crystals, Virtual point source, High power lasers, Mirrors, Optical pumping, Absorption, Laser damage threshold

Proceedings Article | 25 January 2001 Paper
Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.413981
KEYWORDS: Fiber lasers, Fiber Bragg gratings, Raman spectroscopy, Reflectivity, Mirrors, Output couplers, Silicon, Continuous wave operation, Raman scattering, Fiber amplifiers

Proceedings Article | 25 January 2001 Paper
Junji Kawanaka, Hajime Nishioka, Norihiro Inoue, Yoshinori Kubota, Ken-ichi Ueda
Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414095
KEYWORDS: Absorption, Semiconductor lasers, Energy efficiency, Crystals, Polarization, Pulsed laser operation, Oscillators, Glasses, Laser damage threshold, Laser development

Proceedings Article | 11 October 2000 Paper
Yonghong He, Da Xing, Yong Yao, Yonghong Tang, Shici Tan, Ken-ichi Ueda
Proceedings Volume 4224, (2000) https://doi.org/10.1117/12.403982
KEYWORDS: Tissues, Stereolithography, Liver, Sonoluminescence, Ultrasonography, Cavitation, Signal detection, Oxygen, Molecules, Chemiluminescence

Proceedings Article | 11 October 2000 Paper
Proceedings Volume 4224, (2000) https://doi.org/10.1117/12.403978
KEYWORDS: Modulation, Ultrasonography, Tissue optics, Ultrasonics, Signal to noise ratio, Tomography, Biomedical optics, Ultrasound-modulated optical tomography, Amplitude modulation, Light scattering

Proceedings Article | 9 October 2000 Paper
Proceedings Volume 4225, (2000) https://doi.org/10.1117/12.402671
KEYWORDS: Raman spectroscopy, Optical fibers, Raman scattering, Four wave mixing, Modulation, Silica, Laser scattering, Fiber lasers, Nd:YAG lasers, Polarization

Proceedings Article | 3 April 2000 Paper
Nam Seong Kim, Toshihiro Hamada, R. Mahendra Prabhu, Cheng Li, Jie Song, Deyuan Shen, Anping Liu, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380933
KEYWORDS: Fiber lasers, Reflectivity, Mirrors, Microscopes, Signal attenuation, Numerical analysis, Objectives, Absorption, Output couplers, Cladding

Proceedings Article | 3 April 2000 Paper
Leonid Vinogradsky, V. Kargin, Serge Sobolev, Iosif Zubarev, Mikhail Pyatakhin, Yuri Senatsky, A. Shelobolin, Vitaly Mizin, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380870
KEYWORDS: High power lasers, Liquids, Laser applications, Absorption, Glasses, Laser scattering, Apodization, Dielectrics, Laser damage threshold, Scattering

Proceedings Article | 3 April 2000 Paper
Deyuan Shen, Cheng Li, Jie Song, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380940
KEYWORDS: Q switched lasers, YAG lasers, Semiconductor lasers, Laser crystals, Neodymium lasers, Nd:YAG lasers, Crystals, Output couplers, Absorption, Continuous wave operation

Proceedings Article | 3 April 2000 Paper
Cheng Li, Deyuan Shen, Jie Song, Nam Seong Kim, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380894
KEYWORDS: Q switched lasers, Pulsed laser operation, Crystals, High power lasers, Energy transfer, Thulium, Holmium, Lamps, Ions, Output couplers

Proceedings Article | 3 April 2000 Paper
Hiroshi Sekiguchi, Guillaume Vienne, Akiyoshi Tanaka, Yukari Senda, Katsuhisa Ito, Yoshihiko Matsuoka, Hisayoshi Toratani, Shiro Takahashi, Hirofumi Miyajima, Hirofumi Kan, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380876
KEYWORDS: Fiber lasers, Doping, Silica, Optical fibers, Structured optical fibers, Absorption, Ions, Disk lasers, Waveguides, Glasses

Proceedings Article | 3 April 2000 Paper
Mitsuru Musha, Takeshi Kanaya, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380909
KEYWORDS: Fabry–Perot interferometers, Laser stabilization, Iodine, Servomechanisms, Absorption, Nd:YAG lasers, Sensors, Light sources, Laser development, Mirrors

Proceedings Article | 3 April 2000 Paper
Jie Song, Deyuan Shen, Anping Liu, Cheng Li, Nam Seong Kim, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380889
KEYWORDS: Mirrors, Composites, Laser crystals, Adhesives, Absorption, YAG lasers, Semiconductor lasers, Crystals, Virtual point source, Ions

Proceedings Article | 3 April 2000 Paper
Cheng Li, Jie Song, Deyuan Shen, Nam Seong Kim, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380938
KEYWORDS: Semiconductor lasers, Crystals, Disk lasers, Laser crystals, Laser damage threshold, Q switched lasers, Continuous wave operation, Pulsed laser operation, Absorption, Laser applications

Proceedings Article | 3 April 2000 Paper
Deyuan Shen, Jie Song, Cheng Li, Nam Seong Kim, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380890
KEYWORDS: Neodymium lasers, Semiconductor lasers, Absorption, Crystals, Diodes, Laser crystals, Refractive index, Thermal effects, Continuous wave operation, Polarization

Proceedings Article | 3 April 2000 Paper
Nam Seong Kim, R. Mahendra Prabhu, Cheng Li, Jie Song, Deyuan Shen, Ken-ichi Ueda
Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380934
KEYWORDS: Signal to noise ratio, Raman spectroscopy, Fiber amplifiers, Raman scattering, Backscatter, Fiber lasers, Optical amplifiers, Interference (communication), Semiconductor lasers

Proceedings Article | 8 September 1999 Paper
Cheng Li, Jie Song, Nam Seong Kim, Ken-ichi Ueda
Proceedings Volume 3862, (1999) https://doi.org/10.1117/12.361084
KEYWORDS: Fiber lasers, Semiconductor lasers, Absorption, Cladding, High power fiber lasers, Thermal effects, Single mode fibers, Optical pumping, Mirrors, Raman spectroscopy

Proceedings Article | 24 May 1999 Paper
Proceedings Volume 3611, (1999) https://doi.org/10.1117/12.349274
KEYWORDS: Mirrors, Reflectivity, Laser stabilization, Sensors, Fabry–Perot interferometers, Interferometers, Interferometry, Laser resonators, Transmittance, Optical resonators

Proceedings Article | 15 March 1999 Paper
Hajime Nishioka, Ken-ichi Ueda
Proceedings Volume 3734, (1999) https://doi.org/10.1117/12.342345
KEYWORDS: Pulsed laser operation, Absorption, Raman spectroscopy, Light sources, Transient nonlinear optics, Vacuum ultraviolet, Argon, Channel projecting optics, Optical amplifiers, Phase matching

Proceedings Article | 30 December 1998 Paper
Leonid Vinogradsky, Serge Sobolev, Iosif Zubarev, Mikhail Pyatakhin, Yuri Senatsky, Vitaly Mizin, Ken-ichi Ueda
Proceedings Volume 3683, (1998) https://doi.org/10.1117/12.334815
KEYWORDS: Liquids, Optical components, Refractive index, Apodization, Laser amplifiers, Excimer lasers, High power lasers, Laser applications, Iodine, Neodymium

Proceedings Article | 7 August 1998 Paper
Deyuan Shen, Jie Song, Anping Liu, Ken-ichi Ueda
Proceedings Volume 3549, (1998) https://doi.org/10.1117/12.344132
KEYWORDS: Ferroelectric materials, Neodymium lasers, Laser crystals, Semiconductor lasers, Mirrors, Laser development, Temperature metrology, Second-harmonic generation, Absorption, Crystals

Proceedings Article | 13 May 1998 Paper
Proceedings Volume 3267, (1998) https://doi.org/10.1117/12.308104
KEYWORDS: Fiber lasers, Absorption, Optical pumping, High power fiber lasers, Laser processing, High power lasers, Solid state lasers, Laser resonators, Laser scattering, Scattering

Proceedings Article | 31 March 1997 Paper
Anping Liu, Jie Song, Kouichi Kamatani, Ken-ichi Ueda
Proceedings Volume 2986, (1997) https://doi.org/10.1117/12.270007
KEYWORDS: Absorption, Fiber lasers, Fiber coupled lasers, Fiber couplers, Cladding, Interfaces, Solid state lasers, Geometrical optics, 3D modeling, Neodymium

SPIE Journal Paper | 1 November 1996
OE, Vol. 35, Issue 11, (November 1996) https://doi.org/10.1117/12.10.1117/1.601052
KEYWORDS: Optical fibers, Cladding, Absorption, Fiber lasers, Signal attenuation, Sodium, Geometrical optics, Neodymium, Interfaces, Light wave propagation

Proceedings Article | 10 August 1994 Paper
Proceedings Volume 2097, (1994) https://doi.org/10.1117/12.183148
KEYWORDS: Laser stabilization, Nd:YAG lasers, Interference (communication), Solid state lasers, Fermium, Frequency modulation, Mirrors, Absorption, YAG lasers, Laser development

Proceedings Article | 5 August 1994 Paper
Da Xing, Ken-ichi Ueda, Hiroshi Takuma
Proceedings Volume 2321, (1994) https://doi.org/10.1117/12.182111

Proceedings Article | 30 April 1993 Paper
Proceedings Volume 1837, (1993) https://doi.org/10.1117/12.143686
KEYWORDS: Absorption, Laser stabilization, YAG lasers, Disk lasers, Solid state lasers, Fermium, Frequency modulation, High power lasers, Mirrors, Crystals

Proceedings Article | 1 June 1990 Paper
Ken-ichi Ueda, Hajime Nishioka, Hideaki Kuranishi, Hiroshi Takuma
Proceedings Volume 1225, (1990) https://doi.org/10.1117/12.18476
KEYWORDS: Absorption, Amplifiers, Pulsed laser operation, Picosecond phenomena, Optical amplifiers, Gas lasers, High power lasers, Bioalcohols, Photons, Transmittance

Proceedings Article | 1 June 1990 Paper
Ken-ichi Ueda, Xing Da, Hiroshi Takuma
Proceedings Volume 1225, (1990) https://doi.org/10.1117/12.18481
KEYWORDS: Excimers, Rubidium, High power lasers, Gas lasers, Fluorine, Excimer lasers, Spectroscopy, Vacuum ultraviolet, Extreme ultraviolet, Ions

Showing 5 of 57 publications
Proceedings Volume Editor (1)

SPIE Conference Volume | 26 January 2005

Conference Committee Involvement (7)
Fiber Lasers V: Technology, Systems, and Applications
21 January 2008 | San Jose, California, United States
Fiber Lasers IV: Technology, Systems, and Applications
22 January 2007 | San Jose, California, United States
Fiber Lasers III: Technology, Systems, and Applications
23 January 2006 | San Jose, California, United States
Fiber Lasers II: Technology, Systems, and Applications
24 January 2005 | San Jose, California, United States
High-Power Lasers and Applications III
8 November 2004 | Beijing, China
Photonics Asia
8 November 2004 | Beijing, China
Fiber Lasers: Technology, Systems, and Applications
26 January 2004 | San Jose, Ca, United States
Showing 5 of 7 Conference Committees
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