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 ...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.展开更多
An integrated optical waveguide resonator based on a SiO2 waveguide is proposed, fabricated and tested. The method of designing the resonator is also presented. The optimal splitting ratio of the coupler is gained by ...An integrated optical waveguide resonator based on a SiO2 waveguide is proposed, fabricated and tested. The method of designing the resonator is also presented. The optimal splitting ratio of the coupler is gained by simulating the relationship between the splitting ratio of the key coupler in the resonator and the resonator＇s finesse with resonance depth. The calculated fundamental detection limit of this integrated optical vcaveguide resonator is 1.6°/h. Finally, a micro-optical gyroscope system based on the integrated waveguide resonator is built, and the measured resonator＇s finesse F is close to 70 under fluctuating temperature. To the best of our knowledge, the present F is the best result to date. For the coupler splitting rate the experimental results have fixed errors with the simulation results caused by fabrication processes which can be easily eliminated, implying that the method of design is effective and applicable.展开更多
A novel micro resonator optic gyroscope comprising a dual-resonator structure is proposed.This design radically eliminates the noise induced by Rayleigh backscattering,the Kerr effect and polarization coupling.The con...A novel micro resonator optic gyroscope comprising a dual-resonator structure is proposed.This design radically eliminates the noise induced by Rayleigh backscattering,the Kerr effect and polarization coupling.The configuration of the micro optic gyroscope(MOG)is given and described.Three methods are applied to suppress the optical noises in the system and to theoretically analyze the performance improvement.Experiments are carried out on both dual-resonator and single-resonator MOGs,which show the resonance depth improvement from 0.7477 to 0.9173 in the present MOG dual-resonator configuration.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 50875015.
文摘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.
基金Supported by the National Natural Science Foundation of China under Grant No 50875015.
文摘An integrated optical waveguide resonator based on a SiO2 waveguide is proposed, fabricated and tested. The method of designing the resonator is also presented. The optimal splitting ratio of the coupler is gained by simulating the relationship between the splitting ratio of the key coupler in the resonator and the resonator＇s finesse with resonance depth. The calculated fundamental detection limit of this integrated optical vcaveguide resonator is 1.6°/h. Finally, a micro-optical gyroscope system based on the integrated waveguide resonator is built, and the measured resonator＇s finesse F is close to 70 under fluctuating temperature. To the best of our knowledge, the present F is the best result to date. For the coupler splitting rate the experimental results have fixed errors with the simulation results caused by fabrication processes which can be easily eliminated, implying that the method of design is effective and applicable.
基金by the National Natural Science Foundation of China under Grant No 50875015.
文摘A novel micro resonator optic gyroscope comprising a dual-resonator structure is proposed.This design radically eliminates the noise induced by Rayleigh backscattering,the Kerr effect and polarization coupling.The configuration of the micro optic gyroscope(MOG)is given and described.Three methods are applied to suppress the optical noises in the system and to theoretically analyze the performance improvement.Experiments are carried out on both dual-resonator and single-resonator MOGs,which show the resonance depth improvement from 0.7477 to 0.9173 in the present MOG dual-resonator configuration.
