Analysis of Intensity Variation of Laser in Resonator Micro-optic Gyro
The paper describes the basic principle and structure of the resonator micro-optic gyro (RMOG),the influence of intensity variation of laser is mathematically formulized,analyzed and experimentally validated for the first time.Firstly,the relationship between the light intensity input the integrated optical resonator (IOR) and the slope at working range is simulated and analyzed by the optical field overlapping method.Secondly,the amplitudes of the output square waveforms with different zero biases are simulated and analyzed.The influence of intensity variation has a high correlation with the zero bias between the CW and CCW resonance frequency.Finally,the experimental setup is constructed and the related measurement is performed,the test result shows that in order to reach the limited ultimate sensitivity of 15.5 deg/h,it is necessary to restrict the zero bias within 9.81 deg/s under open-loop output scheme,furthermore,in order to eliminate the noise induced by the intensity variation of laser and realize high performance,a close-loop operation is required.
Integrated optics Resonator Micro-optic Gyro laser intensity noise linear time-varying phase modulation bias drift.
Ming Lei Ming Lei Yinzhou Zhi
Science and Technology on Inertial Laboratory, Beihang University, Beijing 100191,China;Key Laboratory of Micro-Nano Measurement-Manipulation and Physics(Ministry of Education), Beihang University, Beijing 100191, China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）