[maniParticipant]

well..thanxx damain..i got the result..Also please do answer, if there exists any method to see the result loop wise..for eg..say im running system for 20 loops ..after solving, i will get final BER/Q factor values that will be generated after 20 loops..now if i want to check what was the q factor value after 15 loops in the same run, is it possible to do that or i have to re-run the simulation for 15 loops .. Please answer as this is going to save a lot of my time..
thanks once again..
regards

[maniParticipant]

Please make a 2 channel system of same file “DPSK 7Channels_Script.osd”..two channels transmitted and two received..rest i myself will figure out..thanxx alot

[maniParticipant]

dear Damian..Thanxx alot for ur reply..i got my answers..sorry for bothering you again,have another question..i tried to simulate 40gbps DPSK this time..i used “DPSK 7Channels_Script.osd” and changed the link in it having pre-post compensation and zero dispersion..i am getting max Q factor of 35 at 193.1 THz ( receiver with default figures as in the file “DPSK 7Channels_Script.osd”. Problem is when i change receiver input frequency to some another channel, no eye diagram appears.i am changing “receiver NRZ subsystem” frequency to 193.02..rest everythg remains same at the receiver..can you please suggest the other parameters i have to change to see the eye diagram on some another channel rather than the central channel (193.1 THz)…thankss alot, once again..
regards..

[maniParticipant]

hello Damian..
i have a question regarding the file you have attached (3Channel_40Gbps_50GhzSpacing_DirectDetection1.zip)..if we take 100 GHz channel spacing inplace of 50 GHz what are the other parameters we have to change to get the results..i changed WDM Tx channel spacing to 100GHz,MUX/DEMUX Bandwidth to 100 GHz, along with the center frequencies of optical receiver 1 , optical receiver and optical receiver 2 to 193.1,193.2 and 193.3 respectively. Rest everythg remains same as in ur attached file..But prob is BER Analyzer 1 gives 21.96 Max Q Factor whereas BER Analyzer gives 2.23 and BER Analyzer 2 gives 6.34 ..i dont think the Max Q facor values of all the three signals is right..
Please refer to the your attached file and do reply..
thanxx alot..
regards..

[maniParticipant]

well once again thanxx alot for your reply Damian..i tried alot but dont know how i keep on doing one or the other thing wrong..The self phase modulation box checked/not checked gives me alot of lot of variation in Q factor..i am not sure whether im doing it right and most probably, im doing it wrong ..i will be really really greatful if you can please send me two files..first one having 10 Gbps OOK NRZ or RZ 32 channel WDM system and the second one having 40 Gbps DPSK 32 channel WDM system..further i want to check their Q Factor performance with and without non linear effects…Please help..Thanxx alot..
regards..
mani

[maniParticipant]

Hi Damian..
thanxx for the reply..i tried to follow the link you have suggested but still not been able to understand..let me put my question in a better way.. Suppose we want to check performance of 8 channel OOK NRZ 10 gbps WDM system..i want to know the Q Factor of any WDM channel when Non Linear noise effects are applied with respect to when non linear effects are disabled..Please consider rest of the factors like power per channel, spacing of signals etc as per ur convenience.. Thanxx once again..
regards..
mani