激光与光电子学进展, 2018, 55 (1): 011301, 网络出版: 2018-09-10   

波导型可调控检偏器设计与模拟 下载: 883次

Design and Simulation of Controllable Polarization Analyzer Based on Waveguide Structures
作者单位
湖南师范大学物理与信息科学学院低维量子结构与调控教育部重点实验室, 湖南 长沙 410006
摘要
波导型可调控检偏器是集成光子系统中的核心元器件之一,其输出偏振态具有动态调控特性,在集成光子系统中具有重要的应用价值。提出了一种新型波导型可调控检偏器,该器件采用偏折倒脊型波导结构,利用液晶材料的各向异性和大双折射特性并基于电光效应实现对光束偏振态的调控,完成横电波和横磁波的可调控输出。采用光束传播法对所提器件的光学特性进行了模拟分析,模拟结果表明,该新型波导型可调控检偏器的消光比高达29.8 dB,光损耗仅为0.002 dB,且该器件对波长和制作工艺误差不敏感。所提器件具有动态调控简便、易于设计和制作、结构简单等诸多优点,在集成光子系统中具有广阔的应用前景。
Abstract
A controllable polarization analyzer based on waveguide structures is one of core components in integrated photonic systems, whose output polarization state can be dynamically manipulated, and it has an important application value in integrated photonic systems. A novel controllable polarization analyzer based on deflection ridge waveguide is proposed. With the anisotropy and large birefringence of the liquid crystal material, the controllable output of transverse electric wave and transverse magnetic wave can be realized based on the electro-optical effect. The optical performance of the proposed device is numerically demonstrated by beam propagation method. The results show that the extinction ratio of the proposed system is 29.8 dB and the optical loss is only 0.002 dB, and the proposed device is insensitive to wavelength and fabrication error. The proposed device has the advantages such as simple dynamic control, easy design and fabrication and simple structure, which has wide applications in integrated photonic systems.

王亚新, 毛强, 唐雄贵. 波导型可调控检偏器设计与模拟[J]. 激光与光电子学进展, 2018, 55(1): 011301. Wang Yaxin, Mao Qiang, Tang Xionggui. Design and Simulation of Controllable Polarization Analyzer Based on Waveguide Structures[J]. Laser & Optoelectronics Progress, 2018, 55(1): 011301.

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