Dr. Kosuke Nishimura Profile

Dr. Kosuke Nishimura

Senior Research Engineer at KDDI Research Inc

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 4 March 2022 Presentation + Paper

High-capacity and high-fidelity analog radio-over-fiber mobile fronthaul

S. Ishimura, H. Takahashi, R. Inohara, K. Nishimura, T. Tsuritani, M. Suzuki

Proceedings Volume 12027, 120270M (2022) https://doi.org/10.1117/12.2614740

KEYWORDS: Signal to noise ratio, Modulation, Frequency modulation, Analog electronics, Angle modulation, Transmitters, Interfaces, Radio optics, Optical modulators

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Proceedings Article | 11 March 2020 Paper

Advanced IF-over-fiber systems for mobile fronthaul

Kazuki Tanaka, Shota Ishimura, Kosuke Nishimura, Tetsuya Kawanishi, Masatoshi Suzuki

Proceedings Volume 11331, 1133106 (2020) https://doi.org/10.1117/12.2552906

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Proceedings Article | 1 February 2019 Paper

High-capacity IF-over-fiber transmission technology for next-generation mobile front-haul links

Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

Proceedings Volume 10947, 109470H (2019) https://doi.org/10.1117/12.2509512

KEYWORDS: Digital signal processing, Analog electronics, Signal processing, Transmitters, Radio over Fiber, Distortion, Modulators, Modulation, Dispersion, Clocks

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Proceedings Article | 30 January 2018 Presentation + Paper

DSP technologies in the Stokes vector receivers for short-reach optical transmission systems

Shota Ishimura, Kosuke Nishimura

Proceedings Volume 10560, 1056004 (2018) https://doi.org/10.1117/12.2291417

KEYWORDS: Digital signal processing, Receivers, Modulation, Detection and tracking algorithms, Polarization, Optical communications, Single mode fibers

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Proceedings Article | 11 January 2011 Paper

Field demonstration of dynamic circuit provisioning by web services interface proxy for lambda and ethernet based administrative domains

Takahiro Miyamoto, Jin Tanaka, Hideki Otsuki, Tomohiro Kudoh, Ryousei Takano, Michiaki Hayashi, Itsuro Morita, Kosuke Nishimura, Shinji Shimojo

Proceedings Volume 7989, 79890F (2011) https://doi.org/10.1117/12.888525

KEYWORDS: Network architectures, Switching, Web services, Ions, Interfaces, Optical testing, Switches, Communication and information technologies, Optical circuits, Circuit switching

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Proceedings Article | 11 January 2011 Paper

A demonstration of session-based resource reservation interface for inter-NGN QoS control

Nobutaka Matsumoto, Michiaki Hayashi, Kosuke Nishimura, Hideaki Tanaka

Proceedings Volume 7989, 79890J (2011) https://doi.org/10.1117/12.888528

KEYWORDS: Network architectures, Networks, Computer architecture, Internet, Prototyping, Standards development, Databases, Video, Clouds, Photonics

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Proceedings Article | 11 January 2011 Paper

Enhancement of fairness among broadband users with heterogeneous access network resources management

Nobutaka Matsumoto, Michiaki Hayashi, Kosuke Nishimura, Hideaki Tanaka

Proceedings Volume 7989, 79890V (2011) https://doi.org/10.1117/12.888117

KEYWORDS: Control systems, Network architectures, Internet, Broadband telecommunications, Prototyping, Control systems design, Switches, Fiber to the x, Photonics, Current controlled current source

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Proceedings Article | 3 October 2006 Paper

Numerical study of wavelength conversion of NRZ signal by SOA-MZI with bidirectional data injection

Kohsuke Nishimura, Takanori Ochiai, Masaharu Hattori, Masashi Usami

Proceedings Volume 6353, 635322 (2006) https://doi.org/10.1117/12.691572

KEYWORDS: Picosecond phenomena, Data conversion, Optical filters, Numerical simulations, Computer simulations, Phase shifts, Data modeling, Bandpass filters, Signal attenuation, Refractive index

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Proceedings Article | 28 January 2006 Paper

All-optical 3R regeneration using SOA-based polarization discriminating switch

R. Inohara, M. Usami, K. Nishimura

Proceedings Volume 6025, 602502 (2006) https://doi.org/10.1117/12.666982

KEYWORDS: Switches, Clocks, Dense wavelength division multiplexing, Optical amplifiers, Electronic filtering, Wavelength division multiplexing, Optical filters, Polarization, Filtering (signal processing), Receivers

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Proceedings Article | 8 December 2005 Paper

All-optical devices and signal processing for all photonic network

M. Usami, K. Nishimura, R. Inohara

Proceedings Volume 6021, 60210H (2005) https://doi.org/10.1117/12.637163

KEYWORDS: Absorption, Optical amplifiers, Nonlinear optics, Switches, Clocks, Wavelength division multiplexing, Modulation, Modulators, Polarization, Picosecond phenomena

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