Polarization Research Center, College of Precision Instrument & Opto-electronics Engineering and Key Laboratory of Opto-electronics Information and Technical Science (Tianjin University), Ministry of Education, Tianjin University, Tianjin 300072, China.
Opt Lett. 2011 Jun 1;36(11):2173-5. doi: 10.1364/OL.36.002173.
We present a method to accurately measure the group birefringence variation with temperature in high-birefringence polarization-maintaining (PM) fibers using a distributed polarization analyzer. By analyzing polarization cross-talk peaks purposely induced at both ends of a PM fiber, the temperature coefficient of group birefringence can be accurately obtained. We confirm the theoretical prediction that the group birefringence of PANDA and TIGER PM fibers decrease linearly with temperature from -40 °C to 80 °C, and find that the temperature coefficients are -5.93 × 10(-7) °C(-1) and -5.29 × 10(-7) °C(-1) for two types of PANDA fibers, and -5.36 × 10(-7) °C(-1) for a TIGER fiber.
我们提出了一种使用分布式偏振分析仪精确测量高双折射保偏（PM）光纤中群双折射随温度变化的方法。通过分析 PM 光纤两端故意引入的偏振串扰峰，可以准确获得群双折射的温度系数。我们证实了理论预测，即 PANDA 和 TIGER PM 光纤的群双折射从-40°C 到 80°C 线性减小，并且发现两种类型的 PANDA 光纤的温度系数分别为-5.93×10(-7)°C(-1)和-5.29×10(-7)°C(-1)，而 TIGER 光纤的温度系数为-5.36×10(-7)°C(-1)。
