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Chin. Opt. Lett.
 Home  List of Issues    Issue 02 , Vol. 15 , 2017    10.3788/COL201715.022502

Upstream dispersion management of 25 Gb/s duobinary and PAM-4 signals to support 0–40 km differential reach
Honglin Ji, Lilin Yi, Lei Xue, and Weisheng Hu
State Key Laboratory of Advanced Optical Communication Systems and Networks, [Shanghai Jiao Tong University], Shanghai 200240, China

Chin. Opt. Lett., 2017, 15(02): pp.022502

Keywords(OCIS Code): 250.4110  230.0040  

We extensively discuss 25 Gb/s per wavelength capacity in both IEEE and ITU-T standardization to support the increasing bandwidth requirement. In this Letter, we propose to use the optical dispersion compensation technique in an optical line terminal (OLT) combined with a bandwidth-limited electro-absorption modulated laser in an optical network unit to achieve 25 Gb/s capacity for the upstream link. We evaluate the positive and negative dispersion tolerances of 25 Gb/s electrical duo-binary (EDB) and pulse-amplitude modulation (PAM-4) signals. We achieve 39.5 and 31 dB upstream loss budgets for the 25 Gb/s EDB and PAM-4 signals by using ?600 and ?500 ps/nm optical dispersion compensation in OLT, respectively, both supporting 0–40 km differential reach.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2017/1/12

Get Citation: Honglin Ji, Lilin Yi, Lei Xue, and Weisheng Hu, "Upstream dispersion management of 25 Gb/s duobinary and PAM-4 signals to support 0–40 km differential reach," Chin. Opt. Lett. 15(02), 022502(2017)

Note: This work was partly supported by the National Natural Science Foundation of China under Grant Nos. 61322507, 61132004, and 61575122.


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