We propose an optical circuit design method for coherent waves as a boundary value problem. The method produces a very compact circuit in which the refractive index pattern is automatically synthesized for given input and output fields with a numerical calculation. We employ the method to design a 1.3/1.55 µm wavelength demultiplexer and also describe the features of a circuit generated by use of the method.
© 2005 Optical Society of America
T. Hashimoto, T. Saida, I. Ogawa, M. Kohtoku, T. Shibata, and H. Takahashi, "Optical circuit design based on a wavefront-matching method," Opt. Lett. 30, 2620-2622 (2005)