摘要
理论分析了温度通过热胀冷缩效应对光纤长度产生影响的机理，并在不同波长情况下通过不同长度的光纤进行了实验验证。实验结果表明：在不同波长下，当温度每变化1℃时每千米单模光纤长度改变量相差不大；对于不同长度的光纤，当温度每变化1℃时单模光纤长度改变量与光纤长度基本呈正比例关系，基本与理论分析结果一致。
The mechanism of temperature effect on fiber length by heat expansion and cold contraction effect have been analyzed theoretically. Experimental verifications have been carried out by different lengths in different wavelengths. Experimental results show that in different wavelengths, single-mode fibers of different lengths change little per km when the variation of temperature is 1 ℃. For fibers of different lengths, when the variation of temperature is 1 ℃, the variation of single-mode fiber length is proportional with fiber length, which is consistent with theoretical analysis results.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2015年第B09期177-181,共5页
Chinese Journal of Lasers
基金
国防军工技术基础科研项目（J312013A002）
关键词
光纤光学
长度测量
温度效应
测量精度
fiber optics
length measurement
temperature effects
accuracy of measurement
