交叉型TE/TM模分离器的研制  

Design and Fabrication of an Optical TE/TM Mode Splitter Using Ti∶LiNbO 3 Waveguide Crossings

作　　者：何希红[1] 胡鸿璋[1] 戴和义 赵慈[1] 

机构地区：[1]天津大学应用物理学系

出　　处：《中国激光》1997年第4期315-318,共4页Chinese Journal of Lasers

摘　　要：采用光束传播法（ＢＰＭ）计算了交叉型ＴＥ／ＴＭ模分离器的偏振串音（ｃｒｏｓｔａｌｋ）。通过结构参数的优化，理论计算的偏振串音为－２３．７ｄＢ（ＴＭ）和－２２．８ｄＢ（ＴＥ）。同时制成相应的器件，测试结果表明。The polarization crosstalk of a TE/TM mode splitter based on a Ti:LiNbO 3 waveguide crossing is deduced by using a beam propagation method(BPM). Optimizing the configuration of the device, the theoretial crosstalk is less than -23.7 dB(TM) and -22.8 dB(TE). The crosstalks of developed splitters have been measured, and the experimental results are consistent with theory.

关 键 词：集成光学 模分离器 钛扩散 

分 类 号：TN256[电子电信—物理电子学]