变温条件下光纤拉曼光谱测试及其意义

Optical fiber tested by Raman spectroscopy at different temperature and its implication

对某种光纤在温度范围从-70℃到70℃进行了变温拉曼光谱测试。实验结果表明，光纤的拉曼光谱非常稳定，几乎不随温度变化，说明该光纤化学结构在实验温度范围内能够保持稳定，暗示了光纤质量在实验温度范围内是可以保证的。因此，实验证明拉曼光谱可以作为检测光纤质量的一种有效手段。

We have tested an optical fiber from -70 ℃ to 70 ℃ by Raman spectroscopy. The results of experiment showed that the Raman spectroscopy was not changed with temperature change. It implies that the chemical structure of optical fiber keeping steady state, and its quality can be ensured within experimental temperature. So, it proves that Raman spectroscopy is an available method to test optical fiber quality.