Research on polarization noise of hollow-core photonic crystal fiber resonator optic gyroscope

Lishuang Feng; Hongchen Jiao; Wenshuai Song

doi:10.1117/12.2202970

8 October 2015 Research on polarization noise of hollow-core photonic crystal fiber resonator optic gyroscope

Lishuang Feng, Hongchen Jiao, Wenshuai Song

Proceedings Volume 9679, AOPC 2015: Optical Fiber Sensors and Applications; 967919 (2015) https://doi.org/10.1117/12.2202970
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Hollow-core photonic crystal fiber (HCPCF) resonator optic gyroscope is an important direction of high accuracy fiber optic gyroscope. The development and application of HCPCF has provided broad prospect for the research of resonator fiber optic gyroscope (RFOG). The HCPCF can restrict light to propagate in the fiber core filled with air/vacuum based on photonic band-gap effect. Compared with conventional polarization maintaining fiber based RFOG (PM-RFOG), the HCPCF based RFOG (HC-RFOG) has great potential to achieve lower nonreciprocal bias and better environment adaptability. The polarization noise, which is one of the main noise sources in the RFOG, is modeled and simulated in this paper. The resonance curves of RFOG with two polarization modes excited are presented, and the polarization noises caused by fiber parameters are calculated. The comparison of polarization noises between HCPCF resonator and polarization maintaining optical fiber (PMF) resonator are carried out by numerical simulation. The polarization features of the HCPCF resonator and conventional PMF resonator are experimentally characterized. The analysis result shows that the polarization stability of HCPCF resonator can be two orders of magnitude lower than that of the conventional PMF resonator. Therefore, the HCPCF resonator has evidently superiority in reducing polarization noise and improving gyro performance. The captive tests based on the HCPCF RFOG system are realized, and a bias stability in the range of 2.5°/s is successfully demonstrated.

Citation Download Citation

Lishuang Feng, Hongchen Jiao, and Wenshuai Song "Research on polarization noise of hollow-core photonic crystal fiber resonator optic gyroscope", Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 967919 (8 October 2015); https://doi.org/10.1117/12.2202970

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