Thank you for correcting the problem in ststem.I just want to confirm about linewidth beacause this value is less and 0.1 MHz as you said reported i n many papers ,i think it would be specificly for the case ofdm ,may be due to phsse matching coherent detectiion.However i have not seen this value for other systems.But if this value in optiwave samples than it would be fine to use this value Xould you please attach the modified file as i have seen,Gagan is struggling for results and could get the value mentioned above.