STUDY OF UV-BLEACHED CHANNEL-WAVE-GUIDE PERFORMANCE IN NONLINEAR-OPTICAL POLYMER-FILMS

作     者：FENG, W LIN, SH HOOKER, RB MICKELSON, AR 

作者机构：[]The authors are with the Department of Electrical Computer Engineering University of Colorado at Boulder Boulder Colorado 80309. 

出 版 物：《APPLIED OPTICS》 (应用光学)

年 卷 期：1995年第34卷第30期

页      面：6885-6891页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Wave-guides Index profiles index profile Polymeric membranes internal stress distribution slab waveguide channel waveguide Waveguide Device Component optical polymers 

摘      要：We report studies on UV-photobleached optical channel waveguides in nonlinear optical polymer films. The nonlinear optical polymer used is poly(methyl methacrylate)/DR1 side-chain polymer. The effective indices of the channel waveguides are measured with the prism-coupling technique, along with the effective indices of bleached and unbleached polymer films. The effective-index method was used to predict the effective indices of the channel waveguides from measurements of the slab waveguides, without detailed knowledge of the index distributions in the polymer films. Some local stress-related effects on the boundaries of the channel waveguides caused by the UV-bleaching process are identified by comparison between direct channel measurement and prediction. It is found that the technique used in this study can be employed to predict the performance of channel waveguides processed such that they have no excessive internal stress distributions.