Prof. Yasuo Ohdaira Profile

Prof. Yasuo Ohdaira

at Niigata Univ

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 23 October 2018 Paper

Optical distance measuring system using a laser diode's fast frequency noise as a detection signal

Masamichi Suzuki, Yuki Kasuya, Daiki Kawakami, Takashi Sato, Masashi Ohkawa, Yasuo Ohdaira, Shuichi Sakamoto

Proceedings Volume 10780, 107800P (2018) https://doi.org/10.1117/12.2324829

KEYWORDS: Distance measurement, Semiconductor lasers, Signal detection, Interference (communication), Absorption, Rubidium, Error analysis, Laser systems engineering, Modulation, Signal generators

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Proceedings Article | 23 October 2018 Paper

Fast physical-random number generation for laser range finders using a laser diode's frequency noise: comparison of the used lasers for fast random number generation

Yuki Kasuya, Masamichi Suzuki, Kouhei Matsumoto, Hideaki Arai, Takashi Sato, Shuichi Sakamoto, Masashi Ohkawa, Yasuo Ohdaira

Proceedings Volume 10780, 107801D (2018) https://doi.org/10.1117/12.2324692

KEYWORDS: Semiconductor lasers, Vertical cavity surface emitting lasers, Laser range finders, Fabry–Perot interferometers, Interference (communication), Binary data, Diodes, Oscilloscopes, Laser applications, Analog electronics

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Proceedings Article | 23 February 2018 Paper

Fast physical-random number generation using laser diode's frequency noise: influence of frequency discriminator

Kouhei Matsumoto, Yuki Kasuya, Mitsuki Yumoto, Hideaki Arai, Takashi Sato, Shuichi Sakamoto, Masashi Ohkawa, Yasuo Ohdaira

Proceedings Volume 10526, 105261W (2018) https://doi.org/10.1117/12.2288160

KEYWORDS: Vertical cavity surface emitting lasers, Semiconductor lasers, Fabry–Perot interferometers, Oscilloscopes, Binary data, Interference (communication), Avalanche photodetectors, Laser stabilization, Reflectivity, Analog electronics

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Proceedings Article | 23 February 2018 Paper

Optical distance measuring method using fast frequency noise characteristics of a laser diode

Daiki Kawakami, Masamichi Suzuki, Ryotaro Kimura, Takashi Sato, Takahiro Saito, Masashi Ohkawa, Yasuo Ohdaira, Shuichi Sakamoto

Proceedings Volume 10526, 105260W (2018) https://doi.org/10.1117/12.2288086

KEYWORDS: Semiconductor lasers, Distance measurement, Absorption, Interference (communication), Modulation, Signal detection, Rubidium, Laser range finders, Target detection, Laser optics

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Proceedings Article | 23 February 2018 Paper

Physical-random number generator using an oscillation frequency stabilized laser diode

Kyohei Hirai, Toshihiro Taoka, Takashi Sato, Kohei Doi, Yasuo Ohdaira, Shuichi Sakamoto, Masashi Ohkawa

Proceedings Volume 10526, 105260E (2018) https://doi.org/10.1117/12.2288035

KEYWORDS: Semiconductor lasers, Signal detection, Absorption, Laser stabilization, Rubidium, Modulation, Interference (communication), Amplifiers, Signal processing, Neodymium

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SPIE Journal Paper | 9 June 2017 Open Access

Study on the resolution improvement of a range finder using the chaotic frequency characteristics of a laser diode

Takahiro Saito, Shinya Maehara, Kohei Doi, Takashi Sato, Yasuo Ohdaira, Shuichi Sakamoto, Masashi Ohkawa

OE, Vol. 56, Issue 06, 064101, (June 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.6.064101

KEYWORDS: Semiconductor lasers, Frequency modulation, Mirrors, Interference (communication), Fabry–Perot interferometers, Spectral resolution

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Proceedings Article | 1 September 2015 Paper

Optical range finder using semiconductor laser frequency noise

T. Saito, K. Kondo, Y. Tokutake, S. Maehara, K. Doi, H. Arai, T. Sato, M. Ohkawa, Y. Ohdaira, S. Sakamoto

Proceedings Volume 9576, 95760N (2015) https://doi.org/10.1117/12.2187963

KEYWORDS: Semiconductor lasers, Distance measurement, Absorption, Modulation, Rubidium, Signal detection, Interference (communication), Oscilloscopes, Laser optics, Semiconductors

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SPIE Journal Paper | 7 January 2013 Open Access

Frequency noise characteristics of a diode laser and its application to physical random number generation

Shinya Maehara, Kohei Kawakami, Hideaki Arai, Kenji Nakano, Kohei Doi, Takashi Sato, Yasuo Ohdaira, Shuichi Sakamoto, Masashi Ohkawa

OE, Vol. 52, Issue 01, 014302, (January 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.1.014302

KEYWORDS: Semiconductor lasers, Absorption, Binary data, Interference (communication), Rubidium, Fabry–Perot interferometers, Optical engineering, Sensors, Signal detection, Optical amplifiers

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Proceedings Article | 29 February 2012 Paper

Fast random-number generation using a diode laser's frequency noise characteristic

Hiroki Takamori, Kohei Doi, Shinya Maehara, Kohei Kawakami, Takashi Sato, Masashi Ohkawa, Yasuo Ohdaira

Proceedings Volume 8255, 825521 (2012) https://doi.org/10.1117/12.908011

KEYWORDS: Semiconductor lasers, Binary data, Diodes, Fabry–Perot interferometers, Interference (communication), Vertical cavity surface emitting lasers, Signal detection, Rubidium, Absorption, Sensors

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Proceedings Article | 21 February 2011 Paper

Super fast physical-random number generation using laser diode frequency noises

Tetsuro Ushiki, Kohei Doi, Shinya Maehara, Takashi Sato, Masashi Ohkawa, Yasuo Ohdaira

Proceedings Volume 7933, 79332F (2011) https://doi.org/10.1117/12.875830

KEYWORDS: Semiconductor lasers, Binary data, Interference (communication), Diodes, Absorption, Rubidium, Computer security, Fabry–Perot interferometers, Sensors, Avalanche photodetectors

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Proceedings Article | 20 August 2009 Paper

Molecular manipulation and nanofabrication using local polarization in optical near-fields

Yasuo Ohdaira, Kazunari Shinbo, Akira Baba, Keizo Kato, Futao Kaneko

Proceedings Volume 7395, 739503 (2009) https://doi.org/10.1117/12.825955

KEYWORDS: Near field optics, Molecules, Dielectric polarization, Dielectrics, Prisms, Nanofabrication, Optical spheres, Thin films, Light scattering, Nanostructures

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Showing 5 of 11 publications

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