定长光纤环形谐振腔不同匝数对光纤陀螺信号输出参数的影响  

Influence of Fixed Length of Optical Fiber Ring Resonator with Different Number of Turns of the Fiber Optic Gyro Signal Output Parameters

作　　者：安盼龙[1,2] 郑永秋[1,3] 李小枫[1,3] 赵瑞娟[2] 刘耀英[3] 薛晨阳[1,3] 闫树斌[1,3] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [2]中北大学理学院,太原030051 [3]中北大学电子测试技术重点实验室,太原030051

出　　处：《科学技术与工程》2014年第24期244-247,共4页Science Technology and Engineering

基　　金：国家自然科学基金项目(61275166,91123036,61178058);国家自然科学基金重点支持项目(91123036);国家自然科学基金项目科学仪器基础研究(61127008);国家自然科学基金杰出青年基金项目(51225504);山西省自然科学基金项目(2010011003-2);山西省青年科技研究基金(2013021010-4)资助

摘　　要：谐振式光纤陀螺由于其在小型化、集成化和高精度等方面比干涉型光纤陀螺占有优势,引起了国内外研究机构的广泛关注,而光纤环形谐振腔作为光纤陀螺的核心敏感部件对陀螺信号的输出至关重要。本文分析对比了半长1.10 m,定长2.2 m,保偏耦合器偏振消光比为20 dB,分光比为50∶50的光纤环腔在相同室温条件下,不同匝数谐振谱线的谐振深度ρ、半高全宽(FWHM)以及光纤陀螺的输出信号包括动态范围、频率带宽、标度因数、系统极限灵敏度的各项陀螺关键指标,为定长保偏光纤环腔作为光学陀螺的核心部件提供相关指导。Resonator fiber optic gyro due to its miniaturization,integration and high-precision and other superiority than interferometric fiber optic gyroscope,attracted wide attention of domestic and foreign research institutions,fiber ring resonator as the core sensitive component of FOG is important for gyro output signal.In the experiment,wavelength is 1 550 nm,perimeter of fiber ring resonator that polarization extinction ratio of polarizationmaintaining coupler is 20 dB and spectral ratio of 50∶ 50,is 2.2 m.Compared the indicators of fiber ring resonator of different turn number under the same environment,such as resonance depth,FWHM and gyro output signal ineluding dynamic range,frequency bandwidth,scale factor and limited sensitivity,then obtained the results.The results provides experimental guide for the research of fixed-length polarization-maintaining optical fiber ring cavity as the core component of optical gyro.

关 键 词：谐振式 光纤环腔 匝数 陀螺信号 

分 类 号：TN29[电子电信—物理电子学]