Patent ID: 9608722
Date: 2017-03-28
CPC Classifications: H04B

Claim:
1. An apparatus for measuring quality parameters of an optical transmission channel, wherein the apparatus comprises: a tunable optical filter for processing an incoming optical signal, performing wavelength or optical carrier demultiplexing on the optical signal and the out-of-band ASE noise suppression; an optical coherent receiver connected to the tunable optical filter, for performing polarization- and phase-diversity detection of the optical signal processed by the tunable optical filter and converting it into multiple lane baseband electrical signals; analog-to-digital converters connected to the optical coherent receiver and operating in a burst mode, for sampling and quantizing the multiple lane baseband electrical signals to convert them into multiple lane digital signals; a digital signal processing module connected to the analog-to-digital converters, for processing the multiple lane digital signals to obtain the quality parameters of the optical transmission channel; and a display module for displaying the quality parameters of the optical transmission channel, wherein the digital signal processing module comprises: