Mr. Akira Hirano Profile

Akira Hirano

Sr Research Engineer at NTT Network Innovation Labs

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Author

Publications (4)

Proceedings Article | 25 October 2004 Paper

OTU3 transmission with 43-Gbit/s-CS-RZ signals over installed G.652 fiber infrastructure and accelerated PMD outage evaluation

Werner Weiershausen, Ralph Leppla, Ottokar Leminger, Frank Rumpf, Ralf Herber, Arnold Mattheus, Andreas Gladisch, Akira Hirano, Yoshiaki Kisaka, Yutaka Miyamoto, Shoichiro Kuwahara, Mikio Yoneyama, Masahito Tomizawa

Proceedings Volume 5596, (2004) https://doi.org/10.1117/12.580471

KEYWORDS: Polarization, Forward error correction, Picosecond phenomena, Modulation, Receivers, Wavelength division multiplexing, Single mode fibers, Optical components, Transmitters, Eye

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Proceedings Article | 19 August 2003 Paper

Spectral mode splitting scheme: application to 40-Gbit/s RZ-ASK and RZ-PSK transmission

Akira Hirano, Yutaka Miyamoto, Shoichiro Kuwahara

Proceedings Volume 5247, (2003) https://doi.org/10.1117/12.510624

KEYWORDS: Tolerancing, Dispersion, Optical filters, Receivers, Modulation, Dense wavelength division multiplexing, Modulators, Electronic filtering, Phase shift keying, Wavelength division multiplexing

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Proceedings Article | 19 August 2003 Paper

Error control and modulation/detection techniques in WDM transmission systems

Masahito Tomizawa, Yoshiaki Kisaka, Akira Hirano, Yutaka Miyamoto

Proceedings Volume 5247, (2003) https://doi.org/10.1117/12.511011

KEYWORDS: Receivers, Forward error correction, Modulation, Signal to noise ratio, Error control coding, Wavelength division multiplexing, Interference (communication), Channel projecting optics, Logic, Error analysis

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Proceedings Article | 8 July 2002 Paper

Impact of modulation formats on 40-Gbit/s/ch WDM networks

Akira Hirano, Yutaka Miyamoto, Masahito Tomizawa

Proceedings Volume 4872, (2002) https://doi.org/10.1117/12.475125

KEYWORDS: Dispersion, Tolerancing, Modulation, Dense wavelength division multiplexing, Wavelength division multiplexing, Receivers, Modulators, Clocks, Electronic filtering, Wavelength division multiplexing networks

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