Monitoring inter-channel nonlinearity based on differential pilot

Wanli Wang, Aiying Yang*, Peng Guo, Yueming Lu, Yaojun Qiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalOptics Communications
Volume417
DOIs
Publication statusPublished - 15 Jun 2018

Keywords

  • Fiber non-linear optics
  • Fiber optics systems
  • Metrology

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