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利用光外差检测技术的光纤温度传感器
Fiber 0ptic Temperature Sensor Using Optical Heterodyne Detection Technique
【摘要】 本文报导以频率稳定的纵向塞曼激光器为光源,高度内禀双折射偏振保持光纤为传感元件,并利用光外差检测技术而制作的温度传感器。理论分析了实验系统工作机理,并给出系统主要性能参数。
【Abstract】 In this paper, a temperature sensor employing optical he- terodyne detection technique is introduced which uses a steady frequency longitudinal Zeeman laser as the optical source, using the polarization pre- served optical fiber as the sensing element which has a high degree of intrinsic birefringence. Theoretical analysis is made on operation prin- ciple for experiment system and the main performance parameters are also given.
【关键词】 微分相位;
拍频;
模式双折射;
外差检测;
传感器;
【Key words】 Differential Phase; Beat--Frequency; Modal Birefringence; Heterodyne Detection; Sensor;
【Key words】 Differential Phase; Beat--Frequency; Modal Birefringence; Heterodyne Detection; Sensor;
- 【文献出处】 半导体光电 ,Semiconductor Optoelectronics , 编辑部邮箱 ,1991年02期
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