Simulation & Evaluation of (OADM) Based on Bragg Gratings and 3dB MMI Couplers
Abstract
In this paper, an approach has been proposed to design an (OADM) made in silica- on silicon waveguide by combining Bragg gratings (BGs) and 2x2 3dB multimode interference couplers (3dB MMI coupler) in a Mach-Zehnder interferometer. This design technique shows an interesting result to obtain low insertion loss, low return loss, insensitive to polarization, high thermal stability, large optical bandwidth and low crosstalk.
Keywords
Optical add/drop multiplexer, OADM, Bragg grating, BG, Mach-Zehnder Interferometer, MZI, Multimode interference couplers, MMI coupler.Metrics