提出一种新型的偏振调制光纤传感器的补偿技术，用于双折射型光纤温度传感器系统，传感探头使用同一偏振分光棱镜既作为起偏器，又作为检偏器，采用反射式光路，使系统具有简单、可靠、实用的特点。实验结果表明:采用这种补偿技术的光纤传感器具有较好的测量精度和长期稳定性。

A novel compensation technique for polarization-modulated optical fiber sensors isproposed, and an optical fiber temperature sensor system is constructed. In the sensor head, a polarization beam splitter is used not only as a polarizer, but also as an analyzer,and thereflective structure is used so that the sensor head is simple, reliable and practical. Theexperimental results show that this compensation technique can stabilize the sensor outputwith a high accuracy and better long-term stability.