Mode coupling in tilted planar waveguide gratings

被引：15

作者：

Lee, KS ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Elect & Comp Engn, Suwon 440746, South Korea

来源：

APPLIED OPTICS | 2000年 / 39卷 / 33期

关键词：

D O I：

10.1364/AO.39.006144

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Three different grating tilting formulas for predicting the optimum grating tilt angle for strong mode coupling in planar waveguide gratings are derived. The optimum tilt angles obtained by the ray-optics approach deviate similar to1 degrees for transmissive mode coupling and similar to1.5 degrees for reflective mode coupling from those computed by the coupled-mode approach. The coupled-mode analysis and ray-optics analysis of the tilted planar waveguide gratings show that the transmissive planar waveguide gratings should be tilted more than 84 degrees for strong TE0-to-TEmu mode coupling near 1550 nm. (C) 2000 Optical Society of America OCIS codes: 230.7390, 060.2340, 230.1950, 050.0050.

引用

页码：6144 / 6149

页数：6

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