Keywords

photonic crystal, waveguide structures, microgenetic algorithm

Abstract

We have developed a powerful parallel genetic algorithm design tool for photonic crystal and waveguide structures. The tool employs a small-population-size genetic algorithm (microgenetic algorithm) for global optimization and a two-dimensional finite-difference time-domain method to rigorously design and optimize the performance of photonic devices. We discuss the implementation and performance of this design tool. We demonstrate its application to two photonic devices, a defect taper coupler to connect conventional waveguides and photonic crystal waveguides, and a sharp 90˚ waveguide bend for low index contrast waveguides.

Original Publication Citation

J. Jiang, J. Cai, G. P. Nordin, and L. Li, "Parallel microgenetic algorithm design for photonic crystal and waveguide structures," Opt. Lett. 28(23), pp. 2381-2383 (23)