温度不灵敏光纤光栅

A Temperature Insensitive Fiber Grating

提出了一种小型的实现温度补偿的光纤光栅组件.该器件包括两种具有不同热膨胀系数的物质.通过改变加在光纤光栅上的应变可以补偿温度变化引起的光栅布喇格波长的漂移.该组件在-20～40℃的温度范围内.波长变化仅有0.12nm.是未补偿光纤光栅的1/6.

In this paper, a compact temperature- compensated fiber grating package is proposed. The package comprises two materials with different thermal expansion coefficients. The releasing strain can compensate the temperature dependent drift of the Bragg wavelength over the range from - 20-40℃. The total variation in wavelength is less then 0.12 nm, 1/6 of the uncompensated fiber grating.