光纤陀螺中光源谱特性对后向散射的影响  

Effects of Spectral Characteristics of Broad Band Fiber Source to Rayleigh Backscattering Noise in Fiber Optic Gyroscope

作　　者：程旭[1] 钱景仁[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系

出　　处：《东南大学学报（自然科学版）》1999年第2期32-37,共6页Journal of Southeast University：Natural Science Edition

摘　　要：就应用不同光谱特性的光源在光纤陀螺中所产生的瑞利后向散射噪声作了理论上的分析，并对用掺铒光纤超荧光宽带光源在光纤陀螺中的后向散射噪声也进行了分析比较，分析表明直接用光谱谱型付里叶变换法和用光谱模拟近似法去计算后向散射噪声大小。This paper analyze Rayleigh backscattering noise errors caused by several kinds fiber sources with different spectral shapes in the gyroscope. Meanwhile, Rayleigh backscattering noise error which caused by broad band fiber superfluorescence source is calculated and discussed. The analysis indicate that the calculation which is gotten by using spectrum's Fourier method approximate very much that calculation gotten by using the approximate method of spectral simulation.

关 键 词：光纤陀螺 光源 瑞利后向散射 光谱特性 

分 类 号：TN253[电子电信—物理电子学] U666.123[交通运输工程—船舶及航道工程]