摘要
分析了偏振模耦合原理的分布式光纤传感器的自相干与互相干光 ;实验测量的干涉光证明了理论分析是正确的 ;利用偏振模耦合原理传感与白光干涉检测的分布式光纤传感器的空间分辨率是由光纤偏振色散系数与光源的谱宽决定的 ;由实验测量的偏振模耦合分布式光纤传感器的空间分辨率为 6cm .
Phenomena of self-coherence and mutual-coherence of the distributed fiber optic sensor based on the principle of polarizedmode coupling are analyzed. The interference characteristics measured by experiment validate the theoretical analysis. The spatial resolution of the distributed. fiber optic sensor is determined by the polarized dispersion coefficients of polarization-maintaining fiber and the spectral width of the light source. The spatial resolution of the polarized-modes coupling distributed fiber optic sensor measured by experiment is 6cm.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第5期2106-2110,共5页
Acta Physica Sinica
基金
总装备部预研基金 (批准号 :5 14 0 2 0 40 10 10 2 )资助的课题 .~~
关键词
光纤传感器
保偏光纤
空间分辨率
偏振模色散耦合
fiber optic sensors
polarization-maintaining optical fiber
spatial resolution
polarized-modes coupling
