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Digital compensation of chromatic dispersion in 112-Gbit/s PDM-QPSK system
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Xu, Tianhua, Jacobsen, Gunnar, Popov, Sergei, Li, Jie, Wang, Ke and Friberg, Ari T. (2010) Digital compensation of chromatic dispersion in 112-Gbit/s PDM-QPSK system. In: 2009 Asia Communications and Photonics Conference and Exhibition (ACP), Shanghai, China, 2-6 Nov 2009. Published in: 2009 Asia Communications and Photonics Conference and Exhibition (ACP) ISSN 2162-108X.
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Abstract
High bit rates optical communication systems pose the challenge of their tolerance to linear and nonlinear fiber impairments. Coherent optical receivers using digital signal processing techniques can mitigate the fiber impairments in the optical transmission system, including the chromatic dispersion equalization with digital filters. In this paper, an adaptive finite impulse response filter employing normalized least mean square algorithm is developed for compensating the chromatic dispersion in a 112-Gbit/s polarization division multiplexed quadrature phase shift keying coherent communication system, which is established in the VPI simulation platform. The principle of the adaptive normalized least mean square algorithm for signal equalization is analyzed theoretically, and at the meanwhile, the taps number and the tap weights in the adaptive finite impulse response filter for compensating a certain fiber chromatic dispersion are also investigated by numerical simulation. The chromatic dispersion compensation performance of the adaptive filter is analyzed by evaluating the behavior of the bit-error-rate versus the optical signal-to-noise ratio, and the compensation results are also compared with other present digital filters.
Item Type: | Conference Item (Paper) | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Signal processing -- Digital techniques, Bit error rate, Phase shift keying, Least squares | ||||||
Journal or Publication Title: | 2009 Asia Communications and Photonics Conference and Exhibition (ACP) | ||||||
Publisher: | IEEE Computer Society | ||||||
ISSN: | 2162-108X | ||||||
Official Date: | 2 February 2010 | ||||||
Dates: |
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Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 16 November 2017 | ||||||
Date of first compliant Open Access: | 16 November 2017 | ||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | 2009 Asia Communications and Photonics Conference and Exhibition (ACP) | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Shanghai, China | ||||||
Date(s) of Event: | 2-6 Nov 2009 |
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