OSNR Monitoring Based on Spectrum Analysis of QPSK Training Sequence
- Resource Type
- Conference
- Authors
- Wu, Feilong; He, Pinjing; Yang, Aiying; Guo, Peng; Li, Qian; Qiao, Yaojun; Xin, Xiangjun
- Source
- 2021 Asia Communications and Photonics Conference (ACP) Communications and Photonics Conference (ACP), 2021 Asia. :1-3 Oct, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Training
Phase shift keying
Estimation error
Asia
Optical noise
Monitoring
Spectral analysis
- Language
An accurate OSNR monitoring method based on spectrum analysis of QPSK training sequence is proposed. Both numerical results (28GBaud system) and experimental results (20GBaud system) show the OSNR (10~30dB) estimation error is within 0.4 dB.