Theoretical Analysis of Incoherent Crosstalk in Coupler Based OADM

This paper represents an analytical expression for Incoherent crosstalk of optical add drop multiplexers (OADM) with Mach-Zehnder interferometer (MZI) based on coupler and fiber Bragg grating (FBG). Analytical expressions for relative intensity noise (RIN), power penalty (PP) and bit error rate (BER) have been derived to analysis the incoherent crosstalk for this model. Results of the analysis show less crosstalk, low relative intensity noise, low power penalty and low bit error rate when a signal with Bragg wavelength is added. Performance of the model is also better than the current models.