Conference Proceedings
Moments-based OSNR monitoring for QPSK and QAM coherent optical systems
C Zhu, AV Tran, S Chen, LB Du, C Do, T Anderson, AJ Lowery, E Skafidas
Technical Digest 2012 17th Opto Electronics and Communications Conference Oecc 2012 | Published : 2012
Abstract
We present a novel moments-based method for optical signal-to-noise ratio (OSNR) monitoring in polarization-multiplexed coherent optical systems. The method is experimentally demonstrated to show high accuracy in OSNR monitoring over a large range for both constant and non-constant modulus modulation formats. © 2012 IEEE.