Prof. Shinji Yamashita Profile

Prof. Shinji Yamashita

Professor at Univ of Tokyo

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 12 March 2024 Paper

L-band wavelength-tunable fiber laser mode-locked by all polarization-maintaining nonlinear polarization rotation

Guanyu Ye, Kin Kee Chow, Takuma Shirahata, Bowen Liu, Naoki Yamaguchi, Maolin Dai, Yifan Ma, Shinji Yamashita, Sze Yun Set

Proceedings Volume 12865, 128650J (2024) https://doi.org/10.1117/12.2692257

KEYWORDS: L band, Wavelength tuning, Mode locking, Polarization, Fiber lasers, Solitons, Tunable lasers

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Proceedings Article | 5 March 2021 Presentation + Paper

Recent trends in coherent free-space optical communications

Chao Zhang, Kota Uyama, Zheyuan Zhang, Lei Jin, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11712, 117120M (2021) https://doi.org/10.1117/12.2582415

KEYWORDS: Free space optics, Free space optical communications, Wireless communications, Telecommunications, Receivers, Modulation, Turbulence, Sensors, Radio optics, RF communications

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Proceedings Article | 10 October 2020 Presentation

Microfiber sensors for monitoring ambient gas and fine particulate matters

Lei Jin, Li Li, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11555, 1155509 (2020) https://doi.org/10.1117/12.2573343

KEYWORDS: Sensors, Gas sensors, Signal detection, Mid-IR, Optical fibers, Fiber lasers, Signal processing, Atmospheric monitoring, Environmental monitoring, Atmospheric optics

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Proceedings Article | 1 April 2020 Presentation + Paper

Comprehensive ranging disambiguation for amplitude-modulated continuous-wave laser scanner

Chao Zhang, Sifan Liu, Zheyuan Zhang, Neisei Hayashi, Lei Jin, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11352, 113521D (2020) https://doi.org/10.1117/12.2553482

KEYWORDS: Laser scanners, 3D metrology, Modulation, Ranging, Data processing, 3D scanning, Spatial resolution

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Proceedings Article | 2 March 2020 Presentation + Paper

Amplitude-modulated continuous-wave laser scanner employing adaptive gain control for avoidance of receiver saturation

Chao Zhang, Sifan Liu, Zheyuan Zhang, Fulin Xiang, Neisei Hayashi, Lei Jin, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11287, 1128708 (2020) https://doi.org/10.1117/12.2543884

KEYWORDS: Laser scanners, Receivers, Continuous wave operation, 3D metrology, 3D scanning, Electro optics, Ceramics, Modulation, Inspection

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Proceedings Article | 21 February 2020 Presentation + Paper

Coherent light source with 106 nm broadband spectrum generated directly from Yb-doped fiber oscillator

Shoko Yokokawa, Lei Jin, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11260, 112601L (2020) https://doi.org/10.1117/12.2547554

KEYWORDS: Oscillators, Light sources, Fiber lasers, Mode locking, Ytterbium, Laser optics

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Proceedings Article | 12 November 2019 Paper

Recovery of defocused 3D data for focusing-optics-based amplitude-modulated continuous-wave laser scanner

Chao Zhang, Sifan Liu, Zheyuan Zhang, Fulin Xiang, Neisei Hayashi, Lei Jin, Sze Yun Set, Shinji Yamashita

Proceedings Volume 11197, 111970H (2019) https://doi.org/10.1117/12.2542489

KEYWORDS: Continuous wave operation, Laser scanners, 3D metrology, Manufacturing, 3D scanning, Laser optics, Optics manufacturing, Laser systems engineering, Optical scanning systems, Collimation

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Proceedings Article | 13 May 2019 Paper

Erbium-doped mid-infrared fiber lasers

Ori Henderson-Sapir, Andrew Malouf, Nathaniel Bawden, Elizaveta Klantsataya, Jesper Munch, Matthew Majewski, Stuart Jackson, Hiraku Matsukuma, Shigeki Tokita, Sze Yun Set, Shinji Yamashita, David Ottaway

Proceedings Volume 10981, 1098108 (2019) https://doi.org/10.1117/12.2524138

KEYWORDS: Mid-IR, Fiber lasers, Erbium, Mode locking, Graphene, Pulsed laser operation, ZBLAN

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Proceedings Article | 4 March 2019 Paper

Real-time strain measurement using slope-assisted Brillouin optical correlation-domain analysis with polarization maintaining fiber and its human interactive sound effecter application

N. Hayashi, Z. Chao, J. Lei, S. Y. Set, S. Yamashita

Proceedings Volume 10903, 109030O (2019) https://doi.org/10.1117/12.2508309

KEYWORDS: Polarization maintaining fibers, Polarization, Interference (communication), Scattering, Spatial resolution, Optical fibers, Picosecond phenomena, Modulation, Temperature metrology, Signal to noise ratio

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Proceedings Article | 4 March 2019 Presentation + Paper

Irradiation angle dependence and polarization dependence in 3D geometry measurement using AMCW LiDAR

Chao Zhang, Neisei Hayashi, Sze Yun Set, Shinji Yamashita

Proceedings Volume 10909, 109090W (2019) https://doi.org/10.1117/12.2507728

KEYWORDS: Polarization, 3D metrology, Laser scanners, LIDAR, Modulation, 3D scanning, Fourier transforms, Optical amplifiers, Phase measurement, Scattering

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Proceedings Article | 23 April 2017 Paper

Characterization of depolarized GAWBS for optomechanical sensing of liquids outside standard fibers

Neisei Hayashi, Yosuke Mizuno, Kentaro Nakamura, Sze Yun Set, Shinji Yamashita

Proceedings Volume 10323, 103230M (2017) https://doi.org/10.1117/12.2262964

KEYWORDS: Acoustics, Optical fibers, Single mode fibers, Scattering, Silica, Refractive index, Liquids, Light scattering, Cladding, Sensors

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Proceedings Article | 13 February 2016 Paper

New value added to network services through software-defined optical core networking

Akiko Yamada, Keiichi Nakatsugawa, Shinji Yamashita, Toshio Soumiya

Proceedings Volume 9773, 977306 (2016) https://doi.org/10.1117/12.2210839

KEYWORDS: Optical networks, Broadband telecommunications, Network architectures, Control systems, Multiplexing, Channel projecting optics, Optical components, Instrument modeling, Computer architecture, Data modeling

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Proceedings Article | 12 September 2014 Paper

Short-pulse fiber lasers mode-locked by carbon nanotube and graphene

Shinji Yamashita, Sze Set, Bo Xu

Proceedings Volume 9162, 91620X (2014) https://doi.org/10.1117/12.2061554

KEYWORDS: Fiber lasers, Graphene, Mode locking, Saturable absorption, Carbon nanotubes, Mirrors, Pulsed laser operation, Optical properties, Absorption, Nonlinear optics

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Proceedings Article | 2 June 2014 Paper

Supercontinuum generation in nonlinear fibers using high-energy figure-of-eight mode-locked fiber laser for SD-OCT application

Bo Xu, Tsubasa Nagata, Shinji Yamashita

Proceedings Volume 9157, 91572Y (2014) https://doi.org/10.1117/12.2059507

KEYWORDS: Optical fibers, Fiber lasers, Optical coherence tomography, Mode locking, Supercontinuum generation, Nonlinear optics, Pulsed laser operation, Solitons, Light sources, Superluminescent diodes

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Proceedings Article | 2 June 2014 Paper

Spectral-domain OCT imaging using a spectrally flexible wavelength-swept fiber laser based on dispersion tuning

Y. Takubo, S. Yamashita

Proceedings Volume 9157, 915754 (2014) https://doi.org/10.1117/12.2059573

KEYWORDS: Optical coherence tomography, Modulation, Fiber lasers, Imaging systems, CCD cameras, Adhesives, Laser resonators, In vivo imaging, Point spread functions, Laser systems engineering

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Proceedings Article | 2 June 2014 Paper

Wide and fast wavelength-swept fiber lasers based on dispersion tuning for real-time OCT

S. Yamashita, Y. Takubo

Proceedings Volume 9157, 91573L (2014) https://doi.org/10.1117/12.2064888

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Proceedings Article | 11 September 2013 Paper

Carbon nanotube and graphene for photonic applications

Shinji Yamashita, Amos Martinez, Bo Xu

Proceedings Volume 8808, 88080Q (2013) https://doi.org/10.1117/12.2023742

KEYWORDS: Graphene, Fiber lasers, Mode locking, Carbon nanotubes, Absorption, Saturable absorption, Pulsed laser operation, Solitons, Laser applications, Nonlinear optics

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Proceedings Article | 20 March 2013 Paper

Fast wavelength sweep in dispersion-tuned fiber laser using a chirped FBG and a reflective SOA for OCT applications

Y. Takubo, S. Yamashita

Proceedings Volume 8571, 85712V (2013) https://doi.org/10.1117/12.2006773

KEYWORDS: Optical coherence tomography, Modulation, Fiber lasers, Mode locking, Laser resonators, Dispersion, Reflectivity, Point spread functions, Fiber Bragg gratings, Adhesives

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Proceedings Article | 7 November 2012 Paper

Dispersion-tuned wavelength-swept fiber laser using a chirped FBG and a reflective SOA for OCT applications

Y. Takubo, S. Yamashita

Proceedings Volume 8421, 84215T (2012) https://doi.org/10.1117/12.975128

KEYWORDS: Optical coherence tomography, Fiber lasers, Dispersion, Modulation, Laser resonators, Fiber Bragg gratings, Reflectivity, Semiconductor optical amplifiers, Imaging systems, Point spread functions

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Proceedings Article | 18 May 2011 Paper

Fast wavelength-swept dispersion-tuned fiber laser over 500kHz using a wideband chirped fiber Bragg grating

Shinji Yamashita, Yuya Takubo

Proceedings Volume 7753, 77537W (2011) https://doi.org/10.1117/12.885070

KEYWORDS: Dispersion, Mode locking, Fiber lasers, Modulation, Fiber Bragg gratings, Optical coherence tomography, Laser resonators, Optical filters, Tunable filters, Wavelength tuning

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Proceedings Article | 16 May 2008 Paper

Wide and fast wavelength-swept mode-locked fiber laser based on dispersion tuning and its application to dynamic FBG sensing

Yuichi Nakazaki, Shinji Yamashita, Kevin Hsu

Proceedings Volume 7004, 70043R (2008) https://doi.org/10.1117/12.785946

KEYWORDS: Fiber Bragg gratings, Mode locking, Sensors, Fiber lasers, Wavelength tuning, Dynamical systems, Optical fibers, Resonators, Amplifiers, Photodiodes

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Proceedings Article | 19 November 2007 Paper

Carbon-nanotube-based photonic devices

Shinji Yamashita

Proceedings Volume 6782, 67821U (2007) https://doi.org/10.1117/12.754534

KEYWORDS: Mode locking, Fiber lasers, Single walled carbon nanotubes, Photonic devices, Absorption, Waveguides, Saturable absorption, Mirrors, Carbon nanotubes, Polarization

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Proceedings Article | 21 February 2007 Paper

Passively mode-locked short-cavity 10GHz Er:Yb-codoped phosphate-fiber laser using carbon nanotubes

Shinji Yamashita, Takeshi Yoshida, Sze Set, Pavel Polynkin, Nasser Peyghambarian

Proceedings Volume 6453, 64531Y (2007) https://doi.org/10.1117/12.700024

KEYWORDS: Mode locking, Mirrors, Fiber lasers, Single walled carbon nanotubes, Reflectivity, Carbon nanotubes, Pulsed laser operation, Semiconductors, Saturable absorption, Absorption

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Proceedings Article | 9 February 2007 Paper

Novel cost effective carbon nanotubes deposition technique using optical tweezer effect

Ken Kashiwagi, Shinji Yamashita, Sze Yun Set

Proceedings Volume 6478, 64780G (2007) https://doi.org/10.1117/12.700054

KEYWORDS: Optical tweezers, Raman spectroscopy, Optical fibers, Fiber lasers, Carbon nanotubes, Mode locking, Single mode fibers, Optical components, Optical amplifiers, Microscopes

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Proceedings Article | 23 February 2006 Paper

Wide and fast wavelength-tunable mode-locked fiber laser using dispersion tuning

Masahiro Asano, Shinji Yamashita

Proceedings Volume 6102, 610218 (2006) https://doi.org/10.1117/12.645388

KEYWORDS: Mode locking, Modulation, Fiber lasers, Wavelength tuning, Laser resonators, Semiconductor lasers, Semiconductor optical amplifiers, Tunable lasers, Tunable filters, Optical filters

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Proceedings Article | 9 September 2002 Paper

High-density multiplexing technique of Bragg grating sensors by synthesis of optical coherence function

Kazuo Hotate, Momoyo Enyama, Shinji Yamashita, Yusuke Nasu

Proceedings Volume 4920, (2002) https://doi.org/10.1117/12.481985

KEYWORDS: Fiber Bragg gratings, Sensors, Coherence (optics), Reflectivity, Multiplexing, Modulation, Terahertz radiation, Light sources, Spatial resolution, Sensing systems

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Proceedings Article | 9 November 2000 Paper

A quasi-distributed fiber laser stress sensor

Shinji Yamashita

Proceedings Volume 4185, 41850C (2000) https://doi.org/10.1117/12.2302155

KEYWORDS: Fiber lasers, Sensors, Mode locking, Fiber optics sensors, Spatial resolution, Polarizers, Single mode fibers, Fiber optics, Sensing systems, Spectrum analysis

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Proceedings Article | 3 February 1999 Paper

Behavior of the lock-in phenomenon and a way to overcome it using the Brillouin fiber optic gyro

Kazuo Hotate, Shinji Yamashita

Proceedings Volume 3541, (1999) https://doi.org/10.1117/12.339113

KEYWORDS: Resonators, Kerr effect, Modulation, Fiber optic gyroscopes, Gyroscopes, Distortion, Backscatter, Silicon, Phase modulation, Sensors

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Proceedings Article | 14 September 1994 Paper

Er-doped fibre ring laser without mode instability due to polarization fluctuation: proposal and experiment

Chao-Xiang Shi, Shinji Yamashita, Kazuo Hotate

Proceedings Volume 2360, (1994) https://doi.org/10.1117/12.185058

KEYWORDS: Fiber lasers, Polarization, Erbium, Temperature metrology, Resonators, Spectrum analysis, Sensors, Structured optical fibers, Optical fibers, Laser applications

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Showing 5 of 29 publications

Conference Committee Involvement (2)

20th International Conference on Optical Fibre Sensors

5 October 2009 | Edinburgh, United Kingdom

Passive Components and Fiber-based Devices III

5 September 2006 | Gwangju, South Korea

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