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提出并演示验证了将负热光系数的聚合物材料覆盖在侧边抛磨光纤光栅的抛磨区实现光纤光栅温度补偿的新方法。实验结果表明,这种新方法的温度补偿效果良好,封装后的光纤光栅处在63～79℃的环境温度时,可使其温度敏感度降低为未补偿时的1/16;当处在58～101℃的环境温度时,其温度敏感度降低为未补偿时的1/4。温度补偿封装后的光纤光栅器件直径只有2mm,长度为20mm。
A new method was proposed and demonstrated to cover the polishing area of the side polished fiber grating with the negative thermal coefficient polymer material to realize the temperature compensation of the fiber grating. Experimental results show that the temperature compensation effect of the new method is good. When the packaged optical fiber grating is at an ambient temperature of 63 to 79 ° C, its temperature sensitivity can be reduced to 1/16 of the uncompensated temperature. When the temperature is between 58 ~ 101 ℃ ambient temperature, the temperature sensitivity is reduced to not compensate for 1/4. The temperature compensated packaged fiber grating device has a diameter of only 2 mm and a length of 20 mm.