1×4 Power Splitter Based on Cascaded Multimode Interference Photonic Crystal Waveguide

Abstract

Using of cascaded multimode interference waveguides in 2D photonic crystal power splitter are investigated by modeling and computation. Results show that with a five line defect waveguides and one pair of three line defect waveguides integrated, the total normalized transmission can be high as 94.9% with 30nm broad spectrum calculated and simulated by finite-difference time-domain method.