Abstract
A new photonic crystal (PC) based 2×1 multiplexer, which composed of a Kerr nonlinear Fano resonance-based switching module and an adder module, is presented. In the proposed device, using a pump light power, it is possible to control the transmissions of the input signals into the output port. The performance of the proposed device is examined using the finite-difference time-domain (FDTD) method. The numerical simulation results show that using a pump light power of 0.48 W/μm, the transmissions of the input signals into the output port can be changed with the extinction ratio of 15.37 dB, which exhibits an efficient switching behavior. For a pump light power of 0.48 W/μm, the switching times for both input signal channels are calculated to be around 5 ps. The designed 2×1 multiplexer can be used in the integrated all-optical digital signal processing structures.
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