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
We propose a method for the real-time measurement of the reflection at both splicing points between a photonic bandgap fiber coil and conventional fiber during the process of fusion splicing in a photonic bandgap fibe...We propose a method for the real-time measurement of the reflection at both splicing points between a photonic bandgap fiber coil and conventional fiber during the process of fusion splicing in a photonic bandgap fiber optical gyroscope （PBFOG）, using the interference among the secondary waves, which arise from the fusion splicing points and the mirror face produced by intentionally cutting the bear end of the coupler. The method is theoretically proven and experimentally verified in a practical PBFOG, and it is significant for inline examination of the fusion splicing quality and evaluation of the PBFOG performance.展开更多
Air-core photonic bandgap fiber(PBF)is the perfect choice of the next-generation fiber optical gyroscope(FOG),with excellent temperature,electromagnetism and radiation adaptability.Numerical aperture is an important o...Air-core photonic bandgap fiber(PBF)is the perfect choice of the next-generation fiber optical gyroscope(FOG),with excellent temperature,electromagnetism and radiation adaptability.Numerical aperture is an important optical parameter of PBF for application in FOG.The PBF’s maximum theoretical numerical aperture(NAmax)is calculated and compared with the far-field numerical aperture(NAeff)through experiments.The result indicates that the relationship between NAmax and NAeff has much stronger dependence on wavelength than that of the conventional fiber,and they get close at wavelengths near the middle of the photonic bandgap with the error less than 5%.Furthermore,photonic bandgap fiber optical gyroscope(PBFOG)with no fusion splicing points is proposed,and the optimization method and results of the PBF’s structure parameters for application in PBFOG are given from the aspect of numerical aperture.展开更多
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.
基金supported by the National Natural Science Foundation of China under Grant No.61205077
文摘We propose a method for the real-time measurement of the reflection at both splicing points between a photonic bandgap fiber coil and conventional fiber during the process of fusion splicing in a photonic bandgap fiber optical gyroscope （PBFOG）, using the interference among the secondary waves, which arise from the fusion splicing points and the mirror face produced by intentionally cutting the bear end of the coupler. The method is theoretically proven and experimentally verified in a practical PBFOG, and it is significant for inline examination of the fusion splicing quality and evaluation of the PBFOG performance.
基金supported by the National Natural Science Foundation of China(Grant No.61205077)
文摘Air-core photonic bandgap fiber(PBF)is the perfect choice of the next-generation fiber optical gyroscope(FOG),with excellent temperature,electromagnetism and radiation adaptability.Numerical aperture is an important optical parameter of PBF for application in FOG.The PBF’s maximum theoretical numerical aperture(NAmax)is calculated and compared with the far-field numerical aperture(NAeff)through experiments.The result indicates that the relationship between NAmax and NAeff has much stronger dependence on wavelength than that of the conventional fiber,and they get close at wavelengths near the middle of the photonic bandgap with the error less than 5%.Furthermore,photonic bandgap fiber optical gyroscope(PBFOG)with no fusion splicing points is proposed,and the optimization method and results of the PBF’s structure parameters for application in PBFOG are given from the aspect of numerical aperture.
