摘要
提出了对双折射光纤Sagnac滤波器的自动补偿方案,将其粘贴在大热膨胀系数的基底材料上,使双折射光纤Sagnac滤波器自动补偿其光谱波长对温度产生的漂移.经过封装后双折射光纤Sagnac滤波器波长对温度的灵敏度降低到0.059nm/℃,是未封装前的0.04倍.这种方法简单可行,并在一定程度上解决了双折射Sagnac滤波器温度敏感的问题,使器件的实用化进程向前迈进了一步.
We present a novel automatic compensation method in which a Sagnac loop filter is fixed to a material with a large thermal expansion constant. Its temperature sensitivity can reach 0. 059nm/℃ ,which is as 0.04 times as that of an uncompensated Sagnac loop filter. This method benefits the practicality of Sagnac loop filters to a certain extent.
