北京航空航天大学仪器科学与光电工程学院，北京 100191
介绍了北京航空航天大学在光子晶体光纤陀螺技术方面的研究进展。在光纤研制方面，设计并拉制了适用于1550 nm高精度光纤陀螺的Φ110 μm细径实芯保偏光子晶体光纤和适用于850 nm小型化光纤陀螺的Φ100 μm超细径实芯保偏光子晶体光纤，突破了km级空芯光子晶体光纤的批量制备技术。在陀螺应用方面，干涉式实芯光子晶体光纤陀螺精度突破0.001（°）/h，实现了国际上光子晶体光纤陀螺的首次空间试验验证；干涉式空芯光子晶体光纤陀螺实现了优于0.4（°）/h的样机精度；同时还探索了空芯光子晶体光纤在谐振式光纤陀螺上的应用。
光纤光学 光纤陀螺 光子晶体光纤 干涉式光子晶体光纤陀螺 谐振式光子晶体光纤陀螺 光学学报
2022, 42(17): 1706002
Author Affiliations
Abstract
Institute of Opto-Electronics Technology, Beihang University, Beijing 100191, China
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.
060.2310 Fiber optics 060.5295 Photonic crystal fibers Chinese Optics Letters
2015, 13(3): 030601
