Abstract
We experimentally demonstrate a multiple-input multiple-output (MIMO) scheme for compensating upstream crosstalk in (T)WDM passive optical network (PON) systems in the electrical domain. The scheme relaxes the optical receiver filter isolation requirements by up to 9 dB, and thus enables narrower channel spacings. We show experimentally that in the case of no or low oversampling of 1 or 2 samples per symbol (Sps), the MIMO scheme can only be applied if all channels are fully symbol aligned, whereas by oversampling at 3 Sps or higher, operation is possible without symbol alignment.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Ning Cheng, Min Zhou, and Frank J. Effenberger
J. Opt. Commun. Netw. 7(1) A87-A96 (2015)
Yong Guo, Songlin Zhu, Guohua Kuang, Yongjia Yin, Dezhi Zhang, and Xin Liu
J. Opt. Commun. Netw. 7(3) A363-A371 (2015)
Ning Cheng, Jianhe Gao, Chengzhi Xu, Bo Gao, Dekun Liu, Lei Wang, Xuming Wu, Xiaoping Zhou, Huafeng Lin, and Frank Effenberger
Opt. Express 22(2) 2078-2091 (2014)