Dr. Mitsuru Sugawara Profile

Dr. Mitsuru Sugawara

President & CEO at QD Laser Inc

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 15 March 2023 Presentation + Paper

Presentation + Paper

Epitaxially re-grown quantum dot-based photonic crystal surface emitting laser

Aye S. M. Kyaw, Ben King, Adam McKenzie, Neil Gerrard, Zijun Bian, Daehyun Kim, Jingzhao Liu, Xingyu Zhao, Kenichi Nishi, Keizo Takemasa, Mitsuru Sugawara, I. Butler, David T. Childs, Calum Hill, Richard J. Taylor, Richard Hogg

Proceedings Volume 12440, 124400F (2023) https://doi.org/10.1117/12.2649087

KEYWORDS: Etching, Photonic crystals, Semiconductor lasers, Laser crystals, Gallium arsenide, Lithium, Semiconducting wafers, Quantum dots, Emission wavelengths, Indium arsenide

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Proceedings Article | 21 February 2020 Paper

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

Proceedings Volume 11230, 112300L (2020) https://doi.org/10.1117/12.2547055

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

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Proceedings Article | 1 February 2019 Open Access

Open Access

Paper

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

Proceedings Volume 10946, 1094609 (2019) https://doi.org/10.1117/12.2509931

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

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Proceedings Article | 14 March 2018 Presentation

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

Proceedings Volume 10526, 1052602 (2018) https://doi.org/10.1117/12.2290112

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

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Proceedings Article | 22 February 2018 Presentation + Paper

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

Proceedings Volume 10545, 105450O (2018) https://doi.org/10.1117/12.2295751

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

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Proceedings Article | 19 February 2018 Paper

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

Proceedings Volume 10553, 105530G (2018) https://doi.org/10.1117/12.2291004

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

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Proceedings Article | 20 April 2017 Presentation

Presentation

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

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

Proceedings Volume 10123, 101230H (2017) https://doi.org/10.1117/12.2255662

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

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Proceedings Article | 4 March 2016 Paper

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

Proceedings Volume 9742, 97420S (2016) https://doi.org/10.1117/12.2213187

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

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Proceedings Article | 27 February 2014 Paper

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

Proceedings Volume 9002, 900204 (2014) https://doi.org/10.1117/12.2039025

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

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Proceedings Article | 23 February 2012 Paper

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

Proceedings Volume 8271, 82710S (2012) https://doi.org/10.1117/12.907958

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

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Proceedings Article | 9 February 2012 Paper

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

Proceedings Volume 8277, 82770C (2012) https://doi.org/10.1117/12.905873

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

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Proceedings Article | 24 February 2010 Paper

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

Proceedings Volume 7610, 76100D (2010) https://doi.org/10.1117/12.842864

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

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Proceedings Article | 28 April 2005 Paper

Paper

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

Yasuhiko Arakawa, Mitsuru Sugawara

Proceedings Volume 5722, (2005) https://doi.org/10.1117/12.606221

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

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Proceedings Article | 20 December 2004 Paper

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

Proceedings Volume 5594, (2004) https://doi.org/10.1117/12.579889

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

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Proceedings Article | 11 May 2004 Paper

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

Proceedings Volume 5365, (2004) https://doi.org/10.1117/12.533278

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

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Proceedings Article | 29 August 2002 Paper

Paper

Quantum-dot semiconductor optical amplifiers

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

Proceedings Volume 4905, (2002) https://doi.org/10.1117/12.481011

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

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Proceedings Article | 1 April 1999 Paper

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

Proceedings Volume 3628, (1999) https://doi.org/10.1117/12.344521

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

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Proceedings Article | 7 July 1998 Paper

Paper

Effect of carrier dynamics on quantum-dot laser performance and the possibility of bi-exciton lasing

Mitsuru Sugawara

Proceedings Volume 3283, (1998) https://doi.org/10.1117/12.316640

KEYWORDS: Quantum dots, Excitons, Quantum wells, Oscillators, Picosecond phenomena, Electrons, Modulation, Carrier dynamics, Crystals, Phonons

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Showing 5 of 18 publications

Conference Committee Involvement (1)

Materials, Active Devices, and Optical Amplifiers

4 November 2003 | Wuhan, China

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