Dr. Mitsuru Sugawara Profile

Dr. Mitsuru Sugawara

President & CEO at QD Laser Inc

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 21 February 2020 Paper

Visual field self-evaluation by free-focus retinal-scanning laser display technology

Takeo Kageyama, Makoto Suzuki, Hideaki Ashikaga, Kazutaka Saito, Kenji Yasui, Seiji Morino, Hironori Miyauchi, Mitsuru Sugawara

Proc. SPIE. 11230, Optics and Biophotonics in Low-Resource Settings VI

KEYWORDS: Eye, Veins, Visualization, Retina, Laser applications, Laser development, Retinal scanning, Laser based displays, Visual optics, Pico projectors

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Proceedings Article | 1 February 2019

Resilience of state-of-the-art 1300nm In(Ga)As/GaAs quantum-dot lasers to external optical feedback (Withdrawal Notice)

Soroush Sobhani, David Childs, Keizo Takemasa, Kenichi Nishi, Mitsuru Sugawara, Richard Hogg

Proc. SPIE. 10946, Metro and Data Center Optical Networks and Short-Reach Links II

KEYWORDS: Refractive index, Feedback, Quantum dots, Telecommunications, Optical communications, Laser optics, Molecular beam epitaxy, Quantum dot lasers

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Proceedings Article | 14 March 2018 Presentation

Temperature-insensitive zero linewidth enhancement factor in state-of-the-art In(Ga)As/GaAs quantum-dot lasers (Conference Presentation)

Soroush Sobhani, David T. Childs, Kenichi Nishi, Keizo Takemasa, Mitsuru Sugawara, Richard Hogg

Proc. SPIE. 10526, Physics and Simulation of Optoelectronic Devices XXVI

KEYWORDS: Quantum wells, Modulation, Quantum dots, Semiconductor lasers, Thermal effects, Laser damage threshold, Local area networks, Molecular beam epitaxy, Quantum dot lasers, Temperature metrology

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Proceedings Article | 22 February 2018 Presentation + Paper

Every aspect of advanced retinal imaging laser eyewear: principle, free focus, resolution, laser safety, and medical welfare applications

Mitsuru Sugawara, Makoto Suzuki, Manabu Ishimoto, Kinya Hasegawa, Nobutaka Teshima, Kenji Yasui, Nori Miyauchi

Proc. SPIE. 10545, MOEMS and Miniaturized Systems XVII

KEYWORDS: Mirrors, Eye, FDA class I medical device development, Visualization, Retina, Image resolution, Retinal scanning, Laser safety, Eyewear, RGB color model

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Proceedings Article | 19 February 2018 Paper

Incorporating structural analysis in a quantum dot Monte-Carlo model

I. M. Butler, Wei Li, S. Sobhani, N. Babazadeh, I. Ross, K. Nishi, K. Takemasa, M. Sugawara, Negin Peyvast, D. T. Childs, R. Hogg

Proc. SPIE. 10553, Novel In-Plane Semiconductor Lasers XVII

KEYWORDS: Modeling, Indium arsenide, Data modeling, Gallium arsenide, Indium, Quantum dots, Transmission electron microscopy, Structural analysis, Epitaxy, Scanning transmission electron microscopy

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Proceedings Article | 20 April 2017 Presentation

Advances in hybrid silicon III-V quantum-dot laser (Conference Presentation)

Yasuhiko Arakawa, Takahiro Nakamura, Bongyong Jang, Kastuaki Tanabe, Misturu Sugawara

Proc. SPIE. 10123, Novel In-Plane Semiconductor Lasers XVI

KEYWORDS: Waveguides, Silicon, Laser applications, Semiconductor lasers, Laser stabilization, Silicon photonics, Tolerancing, Quantum dot lasers, Quantum dot light emitting diodes, Hybrid silicon lasers

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Proceedings Article | 4 March 2016 Paper

Study of electro-absorption effects in 1300nm In(Ga)As/GaAs quantum dot materials

S. Sobhani, D. T. Childs, N. Babazadeh, B. Stevens, K. Nishi, M. Sugawara, K. Takemasa, R. Hogg

Proc. SPIE. 9742, Physics and Simulation of Optoelectronic Devices XXIV

KEYWORDS: Photodetectors, Quantum wells, Indium arsenide, Modulation, Spectroscopy, Gallium arsenide, Silicon, Modulators, Quantum dots, Semiconductor lasers, Diodes, Avalanche photodiodes, Spectroscopes, Absorption

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Proceedings Article | 27 February 2014 Paper

Development of broad spectral bandwidth hybrid QW/QD structures from 1000-1400 nm

N. Peyvast, S. Chen, K. Zhou, N. Babazadeh, A. A. Khozim, Z. Zhang, D. Childs, O. Wada, M. Hugues, R. Hogg, T. Kageyama, K. Nishi, K. Takemasa, M. Sugawara

Proc. SPIE. 9002, Novel In-Plane Semiconductor Lasers XIII

KEYWORDS: Indium gallium arsenide, Quantum wells, Continuous wave operation, Modulation, Optical coherence tomography, Gallium arsenide, Atomic force microscopy, Quantum dots, Electronics engineering, Electrical engineering

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Proceedings Article | 23 February 2012 Paper

Improvement of temperature stability in columnar quantum dots by introducing side barriers with larger bandgap energy for semiconductor optical amplifiers

Nami Yasuoka, Shigekazu Okumura, Hiroji Ebe, Yu Tanaka, Mutsuri Ekawa, Yoshiaki Nakata, Mitsuru Sugawara, Yasuhiko Arakawa

Proc. SPIE. 8271, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling IX

KEYWORDS: Electronics, Transparency, Indium arsenide, Semiconductor optical amplifiers, Waveguides, Quantum dots, Solids, Projection devices, Temperature metrology, Absorption

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Proceedings Article | 9 February 2012 Paper

Long-wavelength quantum dot FP and DFB lasers for high temperature applications

T. Kageyama, K. Takada, K. Nishi, M. Yamaguchi, R. Mochida, Y. Maeda, H. Kondo, K. Takemasa, Y. Tanaka, T. Yamamoto, M. Sugawara, Y. Arakawa

Proc. SPIE. 8277, Novel In-Plane Semiconductor Lasers XI

KEYWORDS: Light sources, Continuous wave operation, Cladding, Gallium arsenide, Laser applications, Laser development, Quantum dots, Semiconductor lasers, Semiconducting wafers, Temperature metrology

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Proceedings Article | 24 February 2010 Paper

Growth of InAs/Sb:GaAs quantum dots by the antimony surfactant mediated metal organic chemical vapor deposition for laser fabrication in the 1.3 um band

Denis Guimard, Damien Bordel, Mitsuru Ishida, Masao Nishioka, Yuki Wakayama, Yu Tanaka, Hisao Sudo, Tsuyoshi Yamamoto, Hayato Kondo, Mitsuru Sugawara, Yasuhiko Arakawa

Proc. SPIE. 7610, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VII

KEYWORDS: Indium arsenide, Etching, Annealing, Interfaces, Gallium arsenide, Quantum dots, Laser damage threshold, Metalorganic chemical vapor deposition, Antimony, Arsenic

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Proceedings Article | 28 April 2005 Paper

Advances in quantum dot lasers for high-speed and temperature-stable operation

Yasuhiko Arakawa, Mitsuru Sugawara

Proc. SPIE. 5722, Physics and Simulation of Optoelectronic Devices XIII

KEYWORDS: Continuous wave operation, Modulation, Cladding, Coating, Laser applications, Reflectivity, Doping, Quantum dots, Gallium, Quantum dot lasers

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Proceedings Article | 20 December 2004 Paper

Recent progress of quantum-dot semiconductor optical amplifiers

Tomoyuki Akiyama, Mitsuru Sugawara, M. Ekawa, K. Kawaguchi, Haruhiko Kuwatsuka, H. Sudo, Hiroji Ebe, A. Kuramata, Yausuhiko Arakawa

Proc. SPIE. 5594, Physics and Applications of Optoelectronic Devices

KEYWORDS: Ultrafast phenomena, Eye, Quantum wells, Indium arsenide, Optical amplifiers, Semiconductor optical amplifiers, Polarization, Gallium arsenide, Interference (communication), Quantum dots

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Proceedings Article | 11 May 2004 Paper

Ultrafast optical signal processing based on quantum dot semiconductor optical amplifiers: theory and experiment

Mitsuru Sugawara, Hiroji Ebe, Nobuaki Hatori, Yasuhiko Arakawa, Tomoyuki Akiyama, Kohji Otsubo, Yoshiaki Nakata

Proc. SPIE. 5365, Novel In-Plane Semiconductor Lasers III

KEYWORDS: Ultrafast phenomena, Optical components, Eye, Optical amplifiers, Semiconductor optical amplifiers, Optical signal processing, Switching, Modulation, Quantum dots, Four wave mixing

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Proceedings Article | 29 August 2002 Paper

Quantum-dot semiconductor optical amplifiers

Mitsuru Sugawara, T. Akiyama, N. Hatori, Yoshiaki Nakata, K. Otsubo, Hiroji Ebe

Proc. SPIE. 4905, Materials and Devices for Optical and Wireless Communications

KEYWORDS: Eye, Quantum wells, Optical amplifiers, Semiconductor optical amplifiers, Switching, Modulation, Quantum dots, Picosecond phenomena, Four wave mixing, Hole burning spectroscopy

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Proceedings Article | 1 April 1999 Paper

Temperature characteristics of light emission spectra and threshold currents of columnar-shaped self-assembled InGaAs/GaAs quantum-dot lasers

Mitsuru Sugawara, Kohki Mukai, Yoshiaki Nakata

Proc. SPIE. 3628, In-Plane Semiconductor Lasers III

KEYWORDS: Indium gallium arsenide, Indium arsenide, Scattering, Gallium arsenide, Quantum dots, Semiconductor lasers, Integration, Laser damage threshold, Chlorine, Quantum dot lasers

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