| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7925363 | Optics Communications | 2018 | 6 Pages |
Abstract
We modify and simplify the inter-channel nonlinearity (NL) estimation method by using differential pilot. Compared to previous works, the inter-channel NL estimation method we propose has much lower complexity and does not need modification of the transmitter. The performance of inter-channel NL monitoring with different launch power is tested. For both QPSK and 16QAM systems with 9 channels, the estimation error of inter-channel NL is lower than 1 dB when the total launch power is bigger than 12 dBm after 1000 km optical transmission. At last, we compare our inter-channel NL estimation method with other methods.
Keywords
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Wanli Wang, Aiying Yang, Peng Guo, Yueming Lu, Yaojun Qiao,