The problem of a guided wave reflected by a thin-film grating is considered. A solution method is proposed based on a coupled-beam theory and a boundary-value iteration. The method is applied to different configurations. A focusing wavelength demultiplexer is analyzed, which could be used with stripe waveguides as input and output channels.
© 1982 Optical Society of America
J. Van Roey and P. E. Lagasse, "Coupled-beam analysis of integrated-optic Bragg reflectors," J. Opt. Soc. Am. 72, 337-342 (1982)