中国激光, 2003, 30 (8): 691, 网络出版: 2006-06-27
偏振无关集成光学模反射镜的研制
Study and Fabrication of Integrated Optical Polarization-independent Reflector
应用光学 集成光学 反射镜 双模干涉 光束传播法 applied optics integrated optical reflector two mode interference beam propagation method (BPM)
摘要
根据双模干涉理论分析了集成光学反射镜的原理,并用光束传播法(BPM)计算了反射镜的反射特性以及对波长变化的适应性,通过对反射镜的结构参数进行优化,设计了一种与偏振无关的反射镜,其反射比大于20 dB(99%)。实际制作了这种反射镜,实验测量表明,TE/TM模的反射比均在18.5 dB以上。
Abstract
An integrated optical polarization independent reflector on LiNbO 3 using Ti diffusion has been proposed according to the theory of two mode interference in this paper. Its principle has been analyzed. With the beam propagation method (BPM), the reflecting characteristic and adaptability with the wavelength change of the reflector have been accurately calculated. By optimizing its configuration parameters, the reflecting ratio is more than 20 dB (99%). Some actual samples have been fabricated and the measured reflecting ratios of both TE/TM mode have reached more than 18.5 dB in the experiment.
谢海宴, 胡鸿璋, 张胜甲, 耿凡. 偏振无关集成光学模反射镜的研制[J]. 中国激光, 2003, 30(8): 691. 谢海宴, 胡鸿璋, 张胜甲, 耿凡. Study and Fabrication of Integrated Optical Polarization-independent Reflector[J]. Chinese Journal of Lasers, 2003, 30(8): 691.