Yan-lin Zheng,Kai-xin Chen,Lu-wen Xie.Design of strain-introduced MZI interleaver on LiNbO3 substrate[J].Optoelectronics Letters,2013,9(1):4-8 Design of strain-introduced MZI interleaver on LiNbO3 substrate Author Name Affiliation E-mail Yan-lin Zheng  College of Communication and Information Engineering, University of Electronic Science and Techonolgy of China, Chengdu, 611731, China  491839926@qq.com  Kai-xin Chen  College of Communication and Information Engineering, University of Electronic Science and Techonolgy of China, Chengdu, 611731, China    Lu-wen Xie  College of Communication and Information Engineering, University of Electronic Science and Techonolgy of China, Chengdu, 611731, China    Abstract:       A strain-introduced Mach-Zehnder interferometer (MZI) interleaver on lithium niobate (LiNbO3) is proposed. The structure of the strain-introduced waveguide is designed in detail, and is produced by depositing a SiO2 film on the annealed proton-exchanged LiNbO3 waveguide. Considering the sensitivities of the edge strain to the deposition temperature and the thickness of the SiO2 film, an optimum design of 50 GHz interleaver on this structure is given through analyzing the effective index changes for E pq x mode by finite difference method (FDM). The length of the bending waveguide in this interleaver is just two thirds of that in the conventional interleaver due to the high refractive index difference. Hits: 5995 Download times: 426 View Full Text    Download reader