Dr. Kunimasa Saitoh Profile

Dr. Kunimasa Saitoh

at Hokkaido Univ

SPIE Involvement:

Author

Proceedings Article | 15 March 2023 Presentation + Paper

Design of three-mode, dual-step index pure silica core fiber with low differential mode delay and low loss characteristics

Taro Iwaya, Yuto Sagae, Takayoshi Mori, Taiji Sakamoto, Takashi Matsui, Takanori Sato, Kunimasa Saitoh, Kazuhide Nakajima

Proceedings Volume 12429, 124290F (2023) https://doi.org/10.1117/12.2647667

KEYWORDS: Silica, Rayleigh scattering, Design and modelling, Cladding, Refractive index, Space division multiplexing

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Proceedings Article | 4 March 2015 Paper

Large mode area Yb-doped photonic bandgap fiber lasers

Liang Dong, Fanting Kong, Guancheng Gu, Thomas Hawkins, Joshua Parsons, Maxwell Jones, Christopher Dunn, Monica Kalichevsky-Dong, Kunimasa Saitoh, Benjamin Pulford, Iyad Dajani

Proceedings Volume 9344, 934402 (2015) https://doi.org/10.1117/12.2086827

KEYWORDS: Cladding, Fiber lasers, Silica, Fermium, Frequency modulation, Refractive index, Photonic crystal fibers, Photon polarization, Glasses, High power fiber lasers

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Proceedings Article | 4 March 2015 Paper

Polarizing 50µm core Yb-doped photonic bandgap fiber

Fanting Kong, Guancheng Gu, Thomas Hawkins, Joshua Parsons, Maxwell Jones, Christopher Dunn, Monica Kalichevsky-Dong, Benjamin Pulford, Iyad Dajani, Kunimasa Saitoh, Stephen Palese, Eric Cheung, Liang Dong

Proceedings Volume 9344, 934403 (2015) https://doi.org/10.1117/12.2076605

KEYWORDS: Polarization, Photon polarization, Fiber lasers, Cladding, Birefringence, Structured optical fibers, Polarizers, Glasses, Optical fibers, Refractive index

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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

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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

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Proceedings Article | 1 February 2014 Paper

PLC-based mode multi/demultiplexer for MDM transmission

N. Hanzawa, K. Saitoh, T. Sakamoto, T. Matsui, K. Tsujikawa, M. Koshiba, F. Yamamoto

Proceedings Volume 9009, 900903 (2014) https://doi.org/10.1117/12.2042308

KEYWORDS: Waveguides, Multiplexing, Waveguide modes, Eye, Single mode fibers, Solids, Signal attenuation, Polarization, Multiplexers, Standards development

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Proceedings Article | 26 February 2013 Paper

Robust single-mode all solid photonic bandgap fibers with core diameter of 50 micron

Liang Dong, Kunimasa Saitoh, Fanting Kong, Thomas Hawkins, Devon Mcclane, Guancheng Gu

Proceedings Volume 8601, 86011U (2013) https://doi.org/10.1117/12.981805

KEYWORDS: Optical fibers, Fermium, Frequency modulation, Waveguides, Cladding, Solids, Fiber lasers, Birefringence, Defense technologies, Photonic crystal fibers

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Proceedings Article | 5 February 2013 Paper

Multicore fiber with one-ring structure

S. Matsuo, Y. Sasaki, I. Ishida, K. Takenaga, K. Saitoh, M. Koshiba

Proceedings Volume 8647, 86470F (2013) https://doi.org/10.1117/12.2002705

KEYWORDS: Cladding, Structured optical fibers, Technetium, Optical communications, Telecommunications, Optical fibers, Electronics, Information science, Information technology, Structural design

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Proceedings Article | 8 November 2012 Paper

All-solid photonic bandgap fibers for high power lasers

Liang Dong, Kunimasa Saitoh, Fanting Kong, Paul Foy, Thomas Hawkins, Devon Mcclane, Guancheng Gu

Proceedings Volume 8547, 85470J (2012) https://doi.org/10.1117/12.970461

KEYWORDS: Optical fibers, Fermium, Frequency modulation, Waveguides, Cladding, Fiber lasers, Birefringence, High power lasers, Defense technologies, Defense and security

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Proceedings Article | 24 May 2012 Paper

Mode area scaling for high-power fiber lasers with all-solid photonic bandgap fibers

Liang Dong, Kunimasa Saitoh, Fanting Kong, Paul Foy, Thomas Hawkins, Devon McClane

Proceedings Volume 8381, 838106 (2012) https://doi.org/10.1117/12.921225

KEYWORDS: Optical fibers, Waveguides, Cladding, High power fiber lasers, Fiber lasers, Defense technologies, Defense and security, Surgery, Refractive index, Pulsed laser operation

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Proceedings Article | 25 January 2012 Paper

Low-crosstalk multicore fibers for long-haul transmission

Kunimasa Saitoh, Masanori Koshiba, Katsuhiro Takenaga, Shouichiro Matsuo

Proceedings Volume 8284, 82840I (2012) https://doi.org/10.1117/12.909473

KEYWORDS: Optical fibers, Cladding, Refractive index, Wave propagation, Space division multiplexing, Multiplexing, Statistical modeling, Information science, Information technology, Electronics

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Proceedings Article | 14 October 2010 Paper

Limitation of effective area for large-mode-area all-solid photonic bandgap fibers

Kunimasa Saitoh

Proceedings Volume 7839, 78390R (2010) https://doi.org/10.1117/12.867213

KEYWORDS: Fermium, Frequency modulation, Optical fibers, Numerical simulations, Cladding, Standards development, Fiber lasers, Refractive index, Information science, Information technology

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Proceedings Article | 13 April 2005 Paper

Coupling between two collinear air-core Bragg fibers

Maksim Skorobogatiy, Kunimasa Saitoh, Masanori Koshiba

Proceedings Volume 5733, (2005) https://doi.org/10.1117/12.589732

KEYWORDS: Optical fibers, Mirrors, Cladding, Reflectors, Directional couplers, Dielectrics, Fiber Bragg gratings, Inspection, Silica, Finite element methods

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Proceedings Article | 20 December 2004 Paper

Hollow Bragg fiber bundles: when coupling helps and when it hurts

Maksim Skorobogatiy, Kunimasa Saitoh, Masanori Koshiba

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.562082

KEYWORDS: Mirrors, Fiber couplers, Cladding, Directional couplers, Reflectors, Dielectrics, Fiber Bragg gratings, Inspection, Silica, Structured optical fibers

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Showing 5 of 14 publications

Conference Committee Involvement (10)

Specialty Optical Fibres VIII

9 April 2024 | Strasbourg, France

Micro-Structured and Specialty Optical Fibres VII

6 April 2022 | Strasbourg, France

Micro-Structured and Specialty Optical Fibres VI

6 April 2020 | Online Only, France

Micro-Structured and Specialty Optical Fibres

25 April 2018 | Strasbourg, France

Next-Generation Optical Communication: Components, Sub-Systems, and Systems VI

31 January 2017 | San Francisco, California, United States

Showing 5 of 10 Conference Committees

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