摘要
介绍了利用全光纤Mach-Zehnder干涉仪检测光纤伸长产生小相位移的方法。在40～5×10~4Hz的频率范围内,可检测到由PZT筒产生的最小相位移为5×10^(-7)rad。
The technique for measuring small phase shifts in a single mode all-fiber Mach-Zehnder interferometer is described inthis paper. A minimum phase change of 5×10^(-7) rad has been detected by stretching the fiber with a piezoelectric cylinder driven in the modulation frequency range from 40 to 5×10~4Hz.
出处
《仪表技术与传感器》
CSCD
北大核心
1996年第12期28-29,33,共3页
Instrument Technique and Sensor
关键词
干涉仪
相位移
光纤
Interferometer, Phase Shift, Fiber Optic.
