半导体激光密集谱合束中VBG的热效应  

Thermal Effect of VBG in Semiconductor Laser Dense Spectrum Synthesis

作　　者：闫宇轩 王岳 张亚维[2] 宁永强[2] 李占国 曲轶 Yan Yuxuan;Wang Yue;Zhang Yawei;Ning Yongqiang;Li Zhanguo;Qu Yi(State Key Laboratory of High Power Semiconductor Laser,Changchun University of Science and Technology,Changchun 130022,China;State Key Laboratory of Luminescence and Applications,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;College of Physics & Electronic Engineering,Hainan Normal University y Haikou 571158,China)

机构地区：[1]长春理工大学高功率半导体激光国家重点实验室,长春130022 [2]中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室,长春130033 [3]海南师范大学物理与电子工程学院,海口571158

出　　处：《半导体技术》2019年第3期201-205,共5页Semiconductor Technology

基　　金：国家自然科学基金资助项目(61774025);吉林省科技厅项目(20140520139JH;20170520157JH;20170414016GH;2015174;201524)

摘　　要：研究并分析了半导体激光密集谱合束技术中体布拉格光栅(VBG)的热效应问题。为了提高半导体激光器的输出功率及其电光转换效率,利用COMSOL软件模拟了半导体激光器中VBG在自由传导散热和水循环冷却两种条件下的温度分布,通过对比这两种条件下VBG温度对其中心波长漂移量及输出功率的影响,分析了VBG热效应变化。模拟与实验结果表明,水循环冷却可以有效将VBG的温度从390.44 K降低到299.09 K,减小了VBG的波长漂移量,有效抑制了VBG的热效应问题。因此合理控制VBG的温度,可提高半导体激光器的输出功率和电光转换效率。The thermal effect of the volume Bragg grating(VBG)in semiconductor laser dense spectrum combining technology was studied and analyzed.In order to improve the output power and electro-optic conversion efficiency of the semiconductor laser,the temperature distributions of VBG in the semiconductor laser under free conduction cooling and water cycle cooling were simulated by COMSOL software.The variation of VBG thermal effect was analyzed by comparing the effects of VBG temperature on the central wavelength drift and output power under the two conditions.The simulation and experiment results show that the temperature of the VBG is reduced from 390.44 K to 299.09 K effectively under water cycle cooling,the wavelength drift of VBG is reduced,and the VBG thermal effect is suppressed effectively.Therefore reasonably controling the temperature of the VBG can improve the output power and the electro-optic conversion efficiency of the semiconductor laser.

关 键 词：半导体激光 体布拉格光栅(VBG) 水循环冷却 热效应 电光转换 

分 类 号：TN248.4[电子电信—物理电子学]