19 November 2008 A WDM-PON architecture with NRZ/CW polarization multiplexed downstream and remodulated upstream using injection-locked FP laser
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Proceedings Volume 7137, Network Architectures, Management, and Applications VI; 71370W (2008) https://doi.org/10.1117/12.803616
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xinlin Li, Cheng Hong, Mingjin Li, Cheng Zhang, Weiwei Hu, and Zhangyuan Chen "A WDM-PON architecture with NRZ/CW polarization multiplexed downstream and remodulated upstream using injection-locked FP laser", Proc. SPIE 7137, Network Architectures, Management, and Applications VI, 71370W (19 November 2008); doi: 10.1117/12.803616; https://doi.org/10.1117/12.803616
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