Study the Coupled-Cavity Waveguides Photonic Crystal Power Splitter
We propose a photonic crystal power splitter that allows the electromagnetic waves with a phase shift of 1800 between output signals. The splitter consists of two parallel coupled-cavity waveguides placed in proximity. On the basis of the guided mode propagation analysis method, the self-imaging effect is discussed for the case of symmetric incidence. The finite-difference time-domain method is used to simulate the propagation of the beam and experimentally demonstrated. The results show that both output paths have the same physical length, the two output signals are synchronized. The splitter is very attractive for splitting high-speed optical signals in integrated optical circuits.
Seung-Bok Choi and Yun-Hae Kim
Y. B. Chen et al., "Study the Coupled-Cavity Waveguides Photonic Crystal Power Splitter", Advanced Materials Research, Vol. 900, pp. 222-225, 2014