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Proceedings Paper

An upstream burst-mode equalization scheme for 40 Gb/s TWDM PON based on optimized SOA cascade
Author(s): Xiao Sun; Qingjiang Chang; Zhensen Gao; Chenhui Ye; Simiao Xiao; Xiaoan Huang; Xiaofeng Hu; Kaibin Zhang
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Paper Abstract

We present a novel upstream burst-mode equalization scheme based on optimized SOA cascade for 40 Gb/s TWDMPON. The power equalizer is placed at the OLT which consists of two SOAs, two circulators, an optical NOT gate, and a variable optical attenuator. The first SOA operates in the linear region which acts as a pre-amplifier to let the second SOA operate in the saturation region. The upstream burst signals are equalized through the second SOA via nonlinear amplification. From theoretical analysis, this scheme gives sufficient dynamic range suppression up to 16.7 dB without any dynamic control or signal degradation. In addition, a total power budget extension of 9.3 dB for loud packets and 26 dB for soft packets has been achieved to allow longer transmission distance and increased splitting ratio.

Paper Details

Date Published: 13 February 2016
PDF: 8 pages
Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VIII, 97730F (13 February 2016); doi: 10.1117/12.2212054
Show Author Affiliations
Xiao Sun, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Qingjiang Chang, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Zhensen Gao, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Chenhui Ye, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Simiao Xiao, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Xiaoan Huang, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Xiaofeng Hu, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)
Kaibin Zhang, Alcatel-Lucent Shanghai Bell Co. Ltd. (China)


Published in SPIE Proceedings Vol. 9773:
Optical Metro Networks and Short-Haul Systems VIII
Atul K. Srivastava; Werner Weiershausen; Benjamin B. Dingel; Achyut K. Dutta, Editor(s)

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