[ThC2] Coherent Transmission

[ThC2-4] Constellation Monitor of QPSK Optical Signals Based on Spectrally-sliced Coherent Optical Spectrum Analyzers

〇Koji Igarashi, Naoki Urakawa (Osaka Univ., Japan)

Keywords:Optical measurement, Optical spectrum analyzer, QAM optical signal

We proposed spectrally sliced coherent optical spectrum analyzers for constellation monitoring of QPSK signals. The optical signal spectrum is divided into spectrally sliced components, which are detected by narrow-band coherent reception.