基于回音壁式光学谐振腔模式劈裂的角速度敏感机理研究

项目名称： 基于回音壁式光学谐振腔模式劈裂的角速度敏感机理研究

项目编号： No.61473022

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 杨照华

作者单位： 北京航空航天大学

项目金额： 85万元

中文摘要： 高品质微谐振腔能极大增强光与物质的相互作用，其中的能量可被放大10万倍。利用这种谐振腔模式劈裂的自参考机制可以敏感到与谐振腔相关联的极微弱信息。本项目提出微光学谐振腔模式劈裂的敏感机理进行载体的角速度测量。创新性地提出背向散射导致的模式劈裂自参考传感机制，解决传统光学谐振陀螺仪中因固有的背向散射造成的分辨率降低、陀螺仪闭锁问题。研究内容包括：①回音壁式谐振腔模式劈裂敏感；②光纤锥耦合技术；③模式劈裂的测量检测方法；④基于回音壁式模式劈裂的角速度测量建模；⑤微环芯回音壁式光学谐振腔模式劈裂敏感机理的半物理仿真验证系统。相关科学问题的突破，丰富了非线性光学、纳米光学、量子光学等交叉学科的发展；其自参考敏感机制的研究不仅可以用到姿态敏感，还可以拓广到激光器、光学调制器、医学病毒检测、生物细胞学、化学微纳米粒子检测很多领域的应用，将带来巨大的经济效益和社会效益。

中文关键词： 光电检测；回音壁光学谐振腔；模式劈裂；角速度；陀螺仪

英文摘要： Ultra-high Q micro-resonators, in which light-matter interactions are significantly enhanced, can reach a build-up factor close to 100 thousands. The self-reference sensing scheme based on mode splitting has shown great help to detect tiny signals associated with the resonator. The project reports to measure rotation based on the mode splitting phenomenon in a micro-toroid resonator. We utilize the splitting-mechanism resulted from backscattering to detect rotation firstly, and intend to avoid the lock-in effect resulting to a low resolution. The project is organized as follows. Firstly, we study the dynamic features of mode splitting and the resonator. Secondly, the fiber taper coupling technique is investigated. The third part is devoted to demonstrate an explicit expression describing the splitting-rotation model. Fourthly, the technique measuring splitting is investigated. Finally, we build a half physical simulation system to test the splitting-rotation model discussed above in a micro-toroid resonator. The research program will promote the development of Nonlinear Optics, Nano Optics, Quantum Optics and several other interdisciplinary disciplines. Besides, the self-reference sensing scheme can be applied to optical laser, modulation, biological virus detection, molecule detection, and nanoparticle detection, which brings huge economic and social benefits.

英文关键词： optoelectronic detection;whispering gallery optic resonant;mode splitting;angular velocity;gyro