耦合谐振器光波导旋转传感的相位灵敏度

利用光学谐振器结构的色散可提高旋转传感的灵敏度, 耦合谐振器光波导可实现强色散, 本文利用传输矩阵理论, 研究耦合谐振器光波导旋转传感的相位灵敏度, 讨论谐振器布局和波导参数对相位灵敏度的影响, 结果表明波导的相位曲线和相位灵敏度依赖于波导中谐振器的布局, 谐振器数量和耦合系数不仅会影响波导旋转传感相位灵敏度曲线峰值的数量和带宽, 还会影响相位灵敏度的大小, 而损耗会降低波导的相位灵敏度, 本文的结果可用于利用谐振器布局和波导参数设计耦合谐振器光波导的相位灵敏度, 对其在旋转传感方面的应用有重要意义. 关键词： 谐振器 旋转传感 光波导

Phase sensitivity of rotation sensing in coupled resonator waveguides

The dispersion of optical resonator structures can be used to increase the sensitivity of rotation sensing. Using coupled resonator waveguides can realize strong dispersion. In this paper, the transfer matrix method is used to analyze the phase sensitivity of rotation sensing in coupled resonator waveguides, and investigate the influences of resonator arrangement and waveguide parameters on the phase sensitivity. Results show that phase curves and phase sensitivity are dependent on resonator arrangement. The number of resonator and coupling coefficients can influence not only the number and bandwidths of peaks for phase sensitivity of rotation sensing but also the variation of phase sensitivity. However, loss can reduce the phase sensitivity. The results can be used to design the phase sensitivity of coupled resonator waveguides using the resonator arrangement and waveguide parameters, and are beneficial for applications of coupled resonator waveguides in rotation sensing.
Keywords： resonator rotation sensing optical waveguide