thanks alitsu. so if to make the global bit rate same as overall bit rate i should divide the bitrate by the no of channels. I made a ckt with dcf. kindly check this and suggest me any changes in it. u send one file 112Gb/s dp-qpsk with dsp changed to dhiman i am not able to open this. can u tell me which version is required to open that. i am attaching the files. can u suugest me some papers or examples or osd filles on WDM-DP-QPSK which i can refer.
regards