单模光纤抗压力测试与低温性能的相关性研究

Research on the correlation between pressure resistance testing and low temperature performance of single-mode optical fibers

光纤在低温环境下的使用越来越广泛,更加优异的低温用涂料和光纤低温性能的研究探索也逐步深入。采用3种不同涂料的G652单模光纤进行光纤抗压力测试,对抗压力测试后的光纤表面形貌进行分析,同时对低温试验后光纤的涂层抗压力与附加衰减性能进行测试表征。实验结果表明:光纤自身抗压力值越大,其低温附加衰减值越小,耐低温性能就越佳,且低温测试前后的光纤抗压力值差异较小。

Optical fiber is more and more widely used in low temperature environment,and the research and exploration of more excellent low temperature coatings and optical fiber low temperature performance are gradually deepened.G.652 single-mode fiber with three different coatings is used for fiber pressure resistance test.The surface morphology of the fiber after pressure resistance test is analyzed.At the same time,the anti-pressure and additional attenuation properties of the fiber coating after low temperature test are tested and characterized.The experimental results show that the higher the pressure resistance value of the fiber,the smaller the low temperature additional attenuation value,the better the low temperature resistance performance,and the difference between the pressure resistance value of the fiber before and after the low temperature test is small.