[21] J. Wang, S. T. Chen, S. P. Wang. Silicon hybrid wavelength/mode-division-demultiplexer with 64 channels for on-chip optical interconnects. Optical Fiber Communication Conference (OFC)(2015).
[40] S. G. Johnson, A. Mekis, S. Fan. Molding the flow of light. Comput. Sci. Eng., 3, 38-47(2001).
[43] K. Okamoto. Chapter 2: Planar optical waveguides. Fundamentals of Optical Waveguides, 13-55(2006).