Prof. Kazuyoku Tei Profile

Prof. Kazuyoku Tei

at Tokai Univ

SPIE Involvement:

Author

Publications (36)

Proceedings Article | 11 March 2024 Presentation + Paper

Amplification of 50-ps optical pulses by simultaneous use of current drive and optical excitation in semiconductor optical amplifiers

Yutaro Tashiro, Kaito Nagasawa, Kazuyoku Tei

Proceedings Volume 12893, 1289308 (2024) https://doi.org/10.1117/12.2691420

KEYWORDS: Semiconductor optical amplifiers, Pulse signals, LIDAR, Continuous wave operation, Sensors, Semiconductor lasers, Optical transmission, Optical pumping, Linear filtering, Light sources

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Proceedings Article | 4 March 2022 Presentation + Paper

Stimulated Brillouin scattering thresholds of pulses in optical fibers

Kazuyoku Tei, Shigeru Yamaguchi

Proceedings Volume 11981, 119810L (2022) https://doi.org/10.1117/12.2609165

KEYWORDS: Fiber amplifiers, Scattering, Optical fibers, Ytterbium, Solids, Phonons, Optical amplifiers, Laser scattering, Fiber lasers, Estimation theory

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Proceedings Article | 11 March 2016 Paper

Tunable pulse width and multi-megawatt peak-power pulses from a nonlinearly compressed monolithic fiber MOPA system

Ryutarou Yamashita, Kazuo Maeda, Goro Watanabe, Kazuyoku Tei, Shigeru Yamaguchi, Jun Enokidani, Shin Sumida

Proceedings Volume 9728, 97281O (2016) https://doi.org/10.1117/12.2212076

KEYWORDS: Picosecond phenomena, Modulators, Amplifiers, Polarization, Medium wave, Pulsed laser operation, Fiber amplifiers, Fiber lasers, Optical amplifiers, Optical filters

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Proceedings Article | 4 March 2015 Paper

Compression of chirp pulses from a femtosecond fiber based amplifier

Rumi Ito, Ken-ichi Takiuchi, Kazuyoku Tei, Shigeru Yamaguchi, Jyun Enokidani, Shin Sumida

Proceedings Volume 9344, 93442O (2015) https://doi.org/10.1117/12.2078595

KEYWORDS: Oscillators, Fiber amplifiers, Dispersion, Polarization, Ytterbium, Mode locking, Diffraction gratings, Amplifiers, Femtosecond phenomena, Optical amplifiers

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Proceedings Article | 4 March 2015 Paper

Polarization-maintaining amplifier based on 3C fiber structures

Jun Enokidani, Rumi Ito, Tsutomu Sakurai, Sumida Shin, Kazuyoku Tei

Proceedings Volume 9344, 934420 (2015) https://doi.org/10.1117/12.2078489

KEYWORDS: Amplifiers, Polarization, Structured optical fibers, Fiber lasers, Optical amplifiers, Fiber amplifiers, Semiconductor lasers, High power fiber amplifiers, System integration, Q switched lasers

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SPIE Journal Paper | 22 May 2014 Open Access

High temperature heat source generation with quasi-continuous wave semiconductor lasers at power levels of 6 W for medical use

Takahiro Fujimoto, Yusuke Imai, Kazuyoku Tei, Shinobu Ito, Hideko Kanazawa, Shigeru Yamaguchi

JBO, Vol. 19, Issue 10, 101502, (May 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.10.101502

KEYWORDS: Fiber lasers, Semiconductor lasers, Optical fibers, Skin, Visible radiation, Laser therapeutics, Temperature metrology, Infrared radiation, Surgery, Pulsed laser operation

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Proceedings Article | 8 March 2013 Paper

High temperature heat source generation with a very low power level quasi-cw(continuous wave) semiconductor laser for medical use

Takahiro Fujimoto, Yusuke Imai, Kazuyoku Tei, Tomoo Fujioka, Shigeru Yamaguchi

Proceedings Volume 8565, 856569 (2013) https://doi.org/10.1117/12.2002723

KEYWORDS: Semiconductor lasers, Fiber lasers, Optical fibers, Laser therapeutics, Absorption, Surgery, Infrared radiation, Tissues, Visible radiation, Titanium dioxide

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Proceedings Article | 16 November 2010 Paper

Development of a laser-based hybrid drill for concrete and rocks

Shigeki Muto, Heizaburo Kato, Kazuya Masuda, Kazuyoku Tei, Tomoo Fujioka

Proceedings Volume 7751, 775125 (2010) https://doi.org/10.1117/12.880948

KEYWORDS: Laser drilling, Laser development, Laser cutting, Collimation, Carbon, Fiber lasers, Temperature metrology, Absorption, Stress analysis, Calcium

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Proceedings Article | 18 April 2009 Paper

Laser based hybrid technique for civil engineering

Shigeki Muto, Kazuyoku Tei, Shigeru Yamaguchi, Kenzo Nanri, Tomoo Fujioka

Proceedings Volume 7131, 71311Y (2009) https://doi.org/10.1117/12.816670

KEYWORDS: Laser cutting, Laser drilling, Fiber lasers, Civil engineering, Buildings, High power lasers, Metals, Collimation, Physics, Abrasives

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Proceedings Article | 8 May 2007 Paper

Ejector COIL with supersonic nozzle bank based on trip-jet mixing system

K. Tei, K. Hirioka, M. Shiho, K. Jyosui, M. Miyagawa, T. Fujioka

Proceedings Volume 6346, 63460G (2007) https://doi.org/10.1117/12.737184

KEYWORDS: Nitrogen, Iodine, Chemical oxygen iodine lasers, Oxygen, Chemical lasers, Gas lasers, Laser development, Distance measurement, Doppler effect, Laser applications

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Proceedings Article | 21 February 2007 Paper

High-peak-power pulse amplification using Yb-doped double-clad fiber

Ryusuke Horiuchi, Hiroaki Sunaga, Kazuyoku Tei, Shigeru Yamaguchi, Kenzo Nanri, Tomoo Fujioka

Proceedings Volume 6453, 645325 (2007) https://doi.org/10.1117/12.702639

KEYWORDS: Crystals, Second-harmonic generation, Ferroelectric materials, Fiber amplifiers, Oscillators, Harmonic generation, Scanning probe microscopy, Optical amplifiers, Semiconductor lasers, Q switched lasers

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Proceedings Article | 14 February 2007 Paper

Measurement of cutting performance of high-power laser on concrete

Kazuyoku Tei, Shigeru Yamaguchi, Kenzo Nanri, Tomoo Fujioka

Proceedings Volume 6454, 645405 (2007) https://doi.org/10.1117/12.702635

KEYWORDS: Laser cutting, Gas lasers, Fiber lasers, Carbon monoxide, High power lasers, Oxygen, Laser applications, Head, Physics, Abrasives

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Proceedings Article | 23 February 2006 Paper

Excavation of methane hydrate using COIL

Kazuya Josui, Naoomi Miyakawa, Kazuyoku Tei, Daichi Sugimoto, Tomoo Fujioka

Proceedings Volume 6101, 610127 (2006) https://doi.org/10.1117/12.682593

KEYWORDS: Methane, Chemical oxygen iodine lasers, Fiber lasers, Energy efficiency, Gas lasers, YAG lasers, Laser energy, Optical fibers, High power lasers, Molecules

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Proceedings Article | 23 February 2006 Paper

Concrete cutting using high-power fiber laser

Kazuyoku Tei, Nriyuki Takeuchi, Daichi Sugimoto, Takashi Arisawa, Kazuya Jyosui, Naoomi Miyagawa, Tomoo Fujioka

Proceedings Volume 6101, 61011T (2006) https://doi.org/10.1117/12.646364

KEYWORDS: Laser cutting, Fiber lasers, High power fiber lasers, Raman spectroscopy, Signal attenuation, Multimode fibers, Fiber coupled lasers, Transmittance, Abrasives, Optical fibers

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