Mr. Koji Omichi Profile

Koji Omichi

General Manager at DIC Corporation

SPIE Involvement:

Author

Proceedings Article | 5 March 2021 Presentation + Paper

Cutting and drilling of CFRP by using 3-kW CW single-mode fiber laser and galvanometer scanner

Yuya Takubo, Daisuke Sekine, Keisuke Uchiyama, Shinya Ikoma, Koji Omichi

Proceedings Volume 11679, 116790C (2021) https://doi.org/10.1117/12.2578074

KEYWORDS: Laser cutting, Laser drilling, Fiber lasers, Single mode fibers, Laser scanners, Image processing, 3D scanning, Laser processing, Scanning electron microscopy, Optical fibers

Read Abstract +

Proceedings Article | 7 February 2015 Paper

Multicore fiber-based mode multiplexer/demultiplexer

Yusuke Sasaki, Hitoshi Uemura, Katsuhiro Takenaga, Shoko Nishimoto, Takui Uematsu, Koji Omichi, Ryuichiro Goto, Shoichiro Matsuo, Kunimasa Saitoh

Proceedings Volume 9389, 938905 (2015) https://doi.org/10.1117/12.2079061

KEYWORDS: Fermium, Frequency modulation, Multiplexers, L band, Polarization, Multiplexing, Optical alignment, Demultiplexers, Measurement devices

Read Abstract +

Proceedings Article | 2 June 2014 Paper

Multi-core to 7 single-core-fibers fan-out device with multi-core fiber pigtail connector

Koji Omichi, Hitoshi Uemura, Kenji Sasaki, Katsuhiro Takenaga, Ryuichiro Goto, Shoichiro Matsuo, Kunimasa Saitoh, Ryozo Yamauchi

Proceedings Volume 9157, 915732 (2014) https://doi.org/10.1117/12.2059556

KEYWORDS: Connectors, Fusion splicing, Sensors, Fiber optics sensors, Specialty optical fibers, Reflectivity, Image sensors, Optical alignment, Polishing, Signal attenuation

Read Abstract +

Proceedings Article | 7 November 2012 Paper

Superstructured FBG based optical encoder/decoder for highly-confidential 40 Gbps telecommunication network

Koji Omichi, Ryujiro Nomura, Ryosuke Matsumoto, Satoshi Shimizu, Yoshihiro Terada, Akira Sakamoto, Ryozo Yamauchi, Naoya Wada, Ken-ichi Kitayama

Proceedings Volume 8421, 842193 (2012) https://doi.org/10.1117/12.968477

KEYWORDS: Computer programming, Networks, Fiber Bragg gratings, Refractive index, Phase shifts, Picosecond phenomena, Phase shift keying, Modulation, Reflectivity, Code division multiplexing

Read Abstract +

Proceedings Article | 17 October 2012 Paper

Optical fiber sensing with chirped FBG Fabry-Perot interferometer: vibration measurement

K. Ikuma, A. Wada, S. Tanaka, K. Omichi, N. Takahashi

Proceedings Volume 8421, 84213R (2012) https://doi.org/10.1117/12.966349

KEYWORDS: Sensors, Fiber Bragg gratings, Fabry–Perot interferometry, Vibrometry, Modulation, Optical sensing, Ferroelectric materials, Optical fibers, Reflectors, Transmittance

Read Abstract +

Proceedings Article | 18 May 2011 Paper

Application of simultaneous strain and temperature measurement technique using polarization maintaining fiber Bragg grating for distributed sensing based on OFDR

Daichi Wada, Hideaki Murayama, Hirotaka Igawa, Koji Omichi, Kazuro Kageyama

Proceedings Volume 7753, 77537H (2011) https://doi.org/10.1117/12.885977

KEYWORDS: Temperature metrology, Fiber Bragg gratings, Sensing systems, Fiber optics sensors, Sensors, Reflectometry, Spatial resolution, Polarization maintaining fibers, Transmission electron microscopy, Fiber optics

Read Abstract +

Proceedings Article | 17 May 2011 Paper

Temperature monitoring of superconducting wire for quench detection

Koji Omichi, Yoshihiro Terada, Akira Sakamoto, Ryozo Yamauchi

Proceedings Volume 7753, 77534N (2011) https://doi.org/10.1117/12.885071

KEYWORDS: Superconductors, Temperature metrology, Fiber Bragg gratings, Sensors, Multiplexing, Time metrology, Quenching (fluorescence), Fiber optics sensors, Technetium, Superconducting detectors

Read Abstract +

Proceedings Article | 17 May 2011 Paper

Distributed sensing with OFDR and its application to structural health monitoring

Hideaki Murayama, Hirotaka Igawa, Koji Omichi, Yuichi Machijima

Proceedings Volume 7753, 775305 (2011) https://doi.org/10.1117/12.886028

KEYWORDS: Fiber Bragg gratings, Structural health monitoring, Sensing systems, Fiber optics sensors, Sensors, Spatial resolution, Fiber optics, Composites, Adhesives, Reflectometry

Read Abstract +

Proceedings Article | 5 October 2009 Paper

Measurement of distributed strain and load identification using 1500 mm gauge length FBG and optical frequency domain reflectometry

Hirotaka Igawa, Hideaki Murayama, Toshiya Nakamura, Isao Yamaguchi, Kazuro Kageyama, Kiyoshi Uzawa, Daichi Wada, Isamu Ohsawa, Makoto Kanai, Koji Omichi

Proceedings Volume 7503, 75035I (2009) https://doi.org/10.1117/12.834236

KEYWORDS: Fiber Bragg gratings, Sensors, Reflectometry, Spatial resolution, Fiber optics sensors, Interferometers, Structural health monitoring, Tunable lasers, Fiber optics, Reflectors

Read Abstract +

Proceedings Article | 5 October 2009 Paper

Simultaneous measurement of strain and temperature by means of polarization division multiplexing optical frequency domain reflectometry

Koji Omichi, Yoshihiro Terada, Akira Sakamoto, Shunichiro Hirafune, Daichi Wada, Hideaki Murayama, Hirotaka Igawa

Proceedings Volume 7503, 75036C (2009) https://doi.org/10.1117/12.834233

KEYWORDS: Temperature metrology, Polarization, Multiplexing, Reflectometry, Birefringence, Fiber Bragg gratings, Polarization maintaining fibers, Interferometers, Fusion splicing, Light wave propagation

Read Abstract +

Proceedings Article | 16 May 2008 Paper

Biaxial measurement of optical frequency domain reflectometry using polarization maintaining fiber Bragg grating

Koji Omichi, Akira Sakamoto, Shunichiro Hirafune, Tetsuya Sakai, Hideaki Murayama, Hirotaka Igawa

Proceedings Volume 7004, 70042A (2008) https://doi.org/10.1117/12.785953

KEYWORDS: Fiber Bragg gratings, Polarization maintaining fibers, Optical testing, Polarization, Lithium, Refractive index, Reflectometry, Fusion splicing, Sensors, Spatial resolution

Read Abstract +

Showing 5 of 11 publications

Conference Committee Involvement (2)

Fifth Asia-Pacific Optical Sensors Conference

20 May 2015 | Jeju, Korea, Republic of

Fifth Asia-Pacific Optical Sensors Conference

20 May 2015 | Jeju, Korea, Republic of

Keywords/Phrases

Search In:

Publication Years