MG-Y激光器波长温度特性研究  

Research on Temperature Characteristics of Wavelength of MG-Y Laser

作　　者：陈振华 王永千 张旭[3] 任帅 祝连庆[1,2] CHEN Zhenhua;WANG Yongqian;ZHANG Xu;REN Shuai;ZHU Lianqing(Key Lab.of Photoelectric Testing Technology and Instrument of the Ministry of Education.Beijing Information Science and Technology University,Beijing 100192,CHN;Beijing Key Lab,of Optoelectronic Test Technology,Bejjing Information Science and Technology University,Beijing 100016,CHN;Tianjin University,Tianjin 300072,CHN)

机构地区：[1]北京信息科技大学光电测试技术及仪器教育部重点实验室,北京100192 [2]北京信息科技大学光纤传感与系统北京实验室,北京100016 [3]天津大学,天津300072

出　　处：《半导体光电》2021年第6期818-822,838,共6页Semiconductor Optoelectronics

基　　金：国家自然科学基金重点项目(51535002,61903042);高等学校学科创新引智计划项目(D17021)。

摘　　要：为了探究调制光栅Y分支(MG-Y)激光器在光纤传感应用中的温度适应性,设计并搭建了波长稳定性为0.6 pm的测试系统,分别对MG-Y激光器内外不同温度下的波长特性进行分析,采用25℃温度下20 pm间隔的查找表进行实验。结果表明当内部温度为25℃、外界温度在-20~50℃范围内以10℃步进时,92.30%的波长漂移量在±7 pm内,内外温差±5℃范围内波长最大漂移量为3 pm;当外界温度为25℃、内部温度在25~30℃范围内以1℃步进时,波长调谐段切换处会出现跳模现象,调谐段内近似线性调谐,调谐系数区间为85~115 pm/℃,证明MG-Y激光器的最佳温度应控制在内外温差±5℃范围内,为解决温度变化造成的波长漂移问题提供了参考。In order to explore the temperature adaptability of modulated grating Y-branch(MG-Y) laser in optical fiber sensing application, a test system with wavelength stability of 0.6 pm was designed and built. The wavelength characteristics of MG-Y laser at different internal and external temperatures were explored respectively, and the experiments were carried out with a look-up table with an interval of 20 pm at 25 ℃. The results show that 92.30% of the wavelength drift is within ±7 pm when the internal temperature is 25 ℃ and the external temperature is in the range of-20~50 ℃ and steps by 10 ℃, and the maximum wavelength drift is 3 pm with the internal and external temperature difference of ±5 ℃. When the external temperature is 25 ℃ and the internal temperature is in the range of 25~30 ℃ and steps by 1 ℃, the mode hopping phenomenon will appear at the switching of the wavelength tuning section. The tuning coefficient range is 85~115 pm/℃. It is proved that the optimal temperature of MG-Y laser should be controlled within the range of internal and external temperature difference of ±5 ℃, which provides a reference for solving the problem of wavelength drift caused by temperature change.

关 键 词：MG-Y激光器 温度特性 波长漂移 温度控制 

分 类 号：TH744[机械工程—光学工程]