Pound-Drever-Hall激光稳频系统线性化复频域建模及分析研究  

Linearized complex frequency domain modeling and analysis of Pound-Drever-Hall laser frequency stabilization system

作　　者：苏娟[1,2] 焦明星[1] 张凌晨 邢俊红[1] SU Juan;JIAO Mingxing;ZHANG Lingchen;XING Junhong(School of Mechanical and Precision Instrument Engineering,Xi＇an University of Technology,Xi＇an 710048,China;Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas,Ministry of Education,Xi＇an Shiyou University,Xi＇an 710065,China)

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048 [2]西安石油大学光电油气测井与检测教育部重点实验室,陕西西安710065

出　　处：《西安理工大学学报》2018年第2期199-204,共6页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(51175421;61205135)

摘　　要：Pound-Drever-Hall(PDH)稳频系统利用了调制光谱技术和外差探测技术,将激光频率锁定在F-P参考腔的中心频率上以实现稳频。鉴频曲线的线性区为PDH系统的频率快速捕获区。在此区域内,PDH误差信号与激光频率差成正比。本文建立了该频率快速捕获区的PDH稳频系统线性化复频域模型,研究了系统的稳定性和稳态误差。F-P参考腔作为稳频基准,其干扰对系统稳频性能影响极大。将F-P参考腔干扰作为噪声源,分析了系统的扰动误差。分析了系统动态性能,研究了频率锁定的暂态响应过程,给出了系统参数设计依据。The Pound-Drever-Hall（PDH）laser frequency stabilization system is based on frequency modulation spectroscope technology and optical heterodyne detection technology,locking laser frequency at the centre frequency of F-P reference cavity.The linear region of frequency discrimination curve is in a fast frequency pull-in range.In this zone,the PDH error is proportional to the frequency bias,with a linearized complex frequency domain control model of PDH laser frequency stabilization system developed.Based on the model,the stability and steady-state error is analyzed.Serving as the frequency standard,the instability of F-P reference cavity limits the frequency stabilization accuracy greatly.The perturbation error caused by noises of F-P reference cavity is analyzed,with the dynamic characteristic and transient response process studied.A guideline for the parameter selection of PDH laser frequency stabilization system is given.

关 键 词：Pound-Drever-Hall稳频 线性化复频域模型 稳态误差 扰动误差 暂态响应 

分 类 号：TN249[电子电信—物理电子学]