Presentation 2012-01-26
Fractionally-Spaced Equalizer Based on High-Order Statistics in Nonlinear Fiber Optics
Toshiaki KOIKE-AKINO, Chunjie DUAN, Kieran PARSONS, Keisuke KOJIMA, Tsuyoshi YOSHIDA, Takashi SUGIHARA, Takashi MIZUOCHI,
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Abstract(in English) Fiber nonlinearity has become a major limiting factor to realize ultra-high-speed optical communications. We propose a fractionally-spaced equalizer which exploits a trained high-order statistics (mean, variance, skewness, etc.) to deal with data-pattern dependent nonlinear impairments in fiber-optic communications. The computer simulation reveals that the proposed 3-tap equalizer improves Q-factor by more than 2 dB for long-haul transmissions of 5,230km distance and 40Gbps data rate. We also demonstrate that the joint use of a digital backpropagation (DBF) and the proposed equalizer offers an additional 1-2 dB performance improvement due to the channel shortening gain. A performance in beyond 100 Gbps high-speed transmissions is evaluated as well.
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Keyword(in English) Optical fiber / nonlinearity compensation / high-order statistics / fractionally-spaced equalizer / maximum-likelihood estimation / digital backpropagation
Paper # OCS2011-108
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Conference Information
Committee OCS
Conference Date 2012/1/19(1days)
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Registration To Optical Communication Systems (OCS)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fractionally-Spaced Equalizer Based on High-Order Statistics in Nonlinear Fiber Optics
Sub Title (in English)
Keyword(1) Optical fiber
Keyword(2) nonlinearity compensation
Keyword(3) high-order statistics
Keyword(4) fractionally-spaced equalizer
Keyword(5) maximum-likelihood estimation
Keyword(6) digital backpropagation
1st Author's Name Toshiaki KOIKE-AKINO
1st Author's Affiliation Mitsubishi Electric Research Labs. (MERL)()
2nd Author's Name Chunjie DUAN
2nd Author's Affiliation Mitsubishi Electric Research Labs. (MERL)
3rd Author's Name Kieran PARSONS
3rd Author's Affiliation Mitsubishi Electric Research Labs. (MERL)
4th Author's Name Keisuke KOJIMA
4th Author's Affiliation Mitsubishi Electric Research Labs. (MERL)
5th Author's Name Tsuyoshi YOSHIDA
5th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corporation
6th Author's Name Takashi SUGIHARA
6th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corporation
7th Author's Name Takashi MIZUOCHI
7th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corporation
Date 2012-01-26
Paper # OCS2011-108
Volume (vol) vol.111
Number (no) 411
Page pp.pp.-
#Pages 6
Date of Issue