Ring Resonator Based Optical Delay Line Device with Enhanced Delay

Optical delay lines has a wide range of application in the areas of the optical signal buffering, optical switching, optical de-multiplexer, optical communication systems, optical packets synchronization and so many. In this paper, we present the analysis of the mutually coupled three racetrack ring resonator architecture. Transfer matrix method is used to analyze the ring resonator and racetrack resonator. Ring resonator and racetrack resonator are designed for the single mode. We achieved a delay of ~1.71ps for three mutually coupled racetrack ring resonator whereas for the three ring resonators achieved a delay of ~1.36ps. We got enhanced delay for racetrack ring when compare to the ring resonator.