光子晶体光纤陀螺技术  

Technology of photonic crystal fiber gyroscope

作　　者：杨远洪[1] 段玮倩[1] 叶淼[1] 杨明伟[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院光电工程系,北京100191

出　　处：《红外与激光工程》2011年第6期1143-1147,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金(60207002);国家"863"计划(2006AA06Z216)

摘　　要：介绍了光纤陀螺在实际应用过程中的环境适应性问题,并从光子晶体光纤的结构特点出发,总结了光子晶体光纤的独特应用优势,指出将光子晶体光纤应用于光纤陀螺中可很好地解决温度、磁和辐射敏感等问题。通过实验研究,验证了实心保偏光子晶体光纤的损耗、模式特性,以及温度、磁场和核辐射对此种光纤的影响。同时,研究开发了它与传统保偏光纤的熔接对轴技术,熔接点损耗和偏振串音达到0.7dB和-25dB。在此基础上,研制出光子晶体光纤陀螺样机,陀螺零漂达到0.09(°)/h。研究和对比表明:在光纤陀螺中用光子晶体光纤代替传统的光纤,在减小温度、辐射、磁场的影响和进一步提高光纤陀螺性能方面具备很大的潜力。The environmental adaptability problems of fiber optic gyroscope（FOG） in the practical application were introduced and the unique advantages of photonic crystal fiber（PCF） were summarized based on its structure characteristics.It was indicated that the sensitivity to temperature,magnetic field and radiation can be depressed greatly in FOG with PCF.Experimental research testified the loss and mode characteristic of solid-core polarization maintaining（PM） PCF,and the affects due to temperature,magnetic field and radiation were obtained.The splicing and polarization axis aligning technology of PCF with conventional PM fiber was developed and 0.7 dB loss and-25 dB polarization crosstalk were achieved.A PCF-FOG prototype was made and the zero drift is about 0.09（°）/h.The study result shows that taking PCF instead of the conventional fiber in FOG is a optimized scheme that can solve the application problem due to temperature,magnetic field and radiation etc.

关 键 词：光子晶体光纤 光纤陀螺 现场应用 

分 类 号：N253[自然科学总论]