Abstract

Optical power splitter is a vital component in optical communication and also in Passive Optical Networks (PON). The optical distribution link between the optical line terminal and optical network unit usually comprises of 1xN splitter/combiner. This splitter is used to have downstream and upstream of data to and from the user end. In this work, we have proposed a 1x4 optical beam splitter with a splitting ratio of 1:4. The splitter is designed based on photonic crystal ring resonators. Photonic Bandgap (PBG) of photonic crystals favours the design of splitter at the required operating wavelength. The Layout is proposed for 1550 nm wavelength and is reported to have an overall device efficiency of 84.68%. Simulation is done with Plane wave expansion and Finite difference time domain method.

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