Abstract:
In this paper, we design five user optical based DCDM system where FBG used as optical filter. The performance comparison of without and with single & double FBG filter has been done. The system performance is evaluated on the basis of the SNR, Q-factor and BER, for all five users. It has been observed that as number of FBG filer increases the performance of system also improves.

Keywords: Duty Cycle, Fiber Bragg Grating, Optical Filter