A new derivation of the coupled-mode equations and coupling coefficient for the troublesome but important case of the Bragg reflection of TM guided waves in a corrugated, planar optical waveguide is presented. The technique solves the (approximate) wave equation directly and clarifies those features of the analysis that are essential to treat the problem correctly.
H. A. HausWei‐Ping HuangS. KawakamiN. A. Whitaker
Huawei LiangShunxiang ShiLin Ma