硅基谐振结构中非线性光学效应导致的光学传播参数非互易分析  

Analysis for the Optical Non-Reciprocity Induced by the Nonlinear Optical Effect in the Silicon Resonant Structure

作　　者：桂林[1] 左健存[1] 吴中林[2] 孙秋冬[1] 张华[1] 王胜利[2] GUI Lin;ZUO Jiancun;WU Zhonglin;SUN Qiudong;ZHANG Hua;WANG Shengli(School of Computer and Information Engineering Shanghai Polytechnic University,Shanghai 201209, China;School of Science, Shanghai Polytechnic University Shanghai 201209, China)

机构地区：[1]上海第二工业大学计算机与信息工程学院,上海201209 [2]上海第二工业大学理学院,上海201209

出　　处：《上海第二工业大学学报》2017年第3期209-216,共8页Journal of Shanghai Polytechnic University

基　　金：上海第二工业大学内涵项目(A11NH170301);上海第二工业大学校基金项目(EGD16XQD07)资助

摘　　要：研究全硅基光学二极管,即在硅基芯片上实现非互易光学传输,是一项具有广泛应用前景并极具技术挑战的研究课题。采用硅基谐振结构微纳器件中非线性光学效应,完成光学非互易传输,是当前实现硅基光学二极管的重要方法。结合硅基波导中的非线性光学效应的基本原理,以及谐振结构微纳器件的基本模型,分析了硅基谐振结构微纳器件构成的光学二极管中的非互易传输问题。仿真结果表明,依靠谐振结构中的非线性光学效应产生的器件非互易特性仅存在于特定频率,这种非互易性在谐振波长附近的一段频率区域较为明显,考虑3 d B以上的非互易传输比率区间,区间宽度累计可以达到10.6 GHz以上。分析了微环耦合系数对硅基光学二极管的非互易传输比率的影响,得出结论:精确控制波导的耦合系数,使得微环工作在接近临界耦合的状态,有助于提升器件的非互易传输比率。The investigation of the all silicon optical diode,which means achievingthe nonreciprocal optical transmission on a silicon chip,is a promising and technically challenging research topic.To realize the optical nonreciprocal transmission by dopting the nonlinear optical effect in the silicon resonator with nano-structure,it is an important methodin the silicon based optical diode.Combined the basic principle of nonlinear optical effect in the silicon waveguide and the basic model of the resonant structure of nano-device,the problem of nonreciprocal transmission in optical diode based on silicon resonant component with nano-structure was analyzed,and then the simulation is done.The simulation results showed that the nonreciprocal property in resonant structure induced by the optical nonlinear effect only occurred in certain frequency which was obviously in the frequency regime near the resonant wavelength.If the regime above3dB nonreciprocal transmission ratio is adopted,the interval width could reach more than10.6GHz.The influence of the coupling coefficient of micro-ring on the nonreciprocal transmission ratio of silicon optical diode was analyzed.The results was that it is conductive to improve the nonreciprocal transmission ratio of the device by precise controlling the coupling ratio of the waveguide to be close to the critical coupling condition in the micro ring.

关 键 词：硅光子学 全硅基光学二极管 非互易光传输 光学隔离器 非线性光学 

分 类 号：TN256[电子电信—物理电子学]