Implementation of Optical Performance Monitor Module Interfacing in DWDM System
The OPM module scans the optical spectrum of a multiplexed WDM signal and detects the channel count, power, frequency and OSNR of the individual channels. Purpose of this paper is to describe the hardware design interfacing of the Optical Performance Monitor Module (OPM) for 80/88 channel DWDM system operating at discrete wavelengths in the C-band (1530nm-1565nm) centered around 193.1 THz frequency as per ITU-T Rec.G.694.1 grid, at 50 GHz channel spacing. The Optical Performance Monitor Module is used to monitor and supervise the Optical signal performance. Optical signal performance includes actual values of OSNR, channel power and optical frequency.