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Proceedings Paper

A WDM-PON architecture with NRZ/CW polarization multiplexed downstream and remodulated upstream using injection-locked FP laser
Author(s): Xinlin Li; Cheng Hong; Mingjin Li; Cheng Zhang; Weiwei Hu; Zhangyuan Chen
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Paper Abstract

The wavelength-division multiplexing passive optical network (WDM-PON) is considered to be a promising method to overlay or upgrade the existing optical access network. A centralized WDM-PON in which the downstream wavelength is reused to modulate the upstream has been studied comprehensively, for same wavelength operation of both downstream and upstream, colorless operation and source-free of optical network units (ONU) can be realized in such systems. We propose a scheme of centralized WDM-PON with non-return-to-zero/continuous-wave (NRZ/CW) polarization multiplexed downstream and remodulated upstream using a CW injection-locked Fabry-Perot (FP) laser. This scheme can eliminate the crosstalk of downstream data on the upstream and get higher extinction ratio of received downstream signal. Experiment with 22.2km transmission of 10-Gb/s downstream signal and 622-Mb/s upstream signal was realized using a commercial FP laser, with power penalties of 0.2dB and 0dB respectively. 2.5-Gb/s upstream signal using an injection locked FP laser was also investigated, and 61 modes within 25.4nm span were locked with side-mode suppression ratio of above 27dB.

Paper Details

Date Published: 19 November 2008
PDF: 8 pages
Proc. SPIE 7137, Network Architectures, Management, and Applications VI, 71370W (19 November 2008); doi: 10.1117/12.803616
Show Author Affiliations
Xinlin Li, Peking Univ. (China)
Cheng Hong, Peking Univ. (China)
Mingjin Li, Peking Univ. (China)
Cheng Zhang, Peking Univ. (China)
Weiwei Hu, Peking Univ. (China)
Zhangyuan Chen, Peking Univ. (China)

Published in SPIE Proceedings Vol. 7137:
Network Architectures, Management, and Applications VI
Weisheng Hu; Shoa-Kai Liu; Ken-ichi Sato; Lena Wosinska, Editor(s)

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