Frequency Modulation Induced by using the Linear Phase Modulation Method used in a Resonator Micro-optic Gyro  

作　　者：HONG Ling-Fei ZHANG Chun-Xi FENG Li-Shuang YU Huai-Yong LEI Ming 洪灵菲;张春熹;冯丽爽;于怀勇;雷明(School of Instrumentation Science and Opto-electronics Engineering,and Key Laboratory of Micro-Nano Measurement-Manipulation and Physics(Ministry of Education,Beihang University,Beijing 100083)

机构地区：[1]School of Instrumentation Science and Opto-electronics Engineering,and Key Laboratory of Micro-Nano Measurement-Manipulation and Physics(Ministry of Education,Beihang University,Beijing 100083

出　　处：《Chinese Physics Letters》2012年第1期148-151,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 50875015.

摘　　要：Resonator micro-optic gyro (R-MOG) sensing rotation angular-velocity is based on Sagnac effect.We present a frequency modulation (FM) induced by the analog triangle-waveform phase modulation (ATAW-PM) technique in an R-MOG.Compared with the traditional serrodyne phase modulation or digital phase modulation methods,the proposed modulation technique has the intrinsic advantage in free of sweeping-back or step-effect induced pulse noise.The influence on dynamic range and resolution of the R-MOG by the parameters of analog trianglewaveform is theoretically analyzed.Experiments are carried out on an R-MOG composed of an integrated optic resonator with a free spectral range (FSR) and a fitness (F) of 1.6GHz and 61,respectively.Dynamic range of ±500 deg/s and bias drift of 0.6 deg/s over 1 h and 0.05 deg/s for 60 s are reliably obtained.

关 键 词：RESONATOR RESONATOR TRIANGLE 

分 类 号：TN2[电子电信—物理电子学]