体布拉格光栅外腔半导体激光器温度特性研究  

Research on temperature characteristics of VBG external cavity semiconductor laser

作　　者：刘荣战 蒋威 宋健 LIU Rongzhan;JIANG Wei;SONG Jian(Wuhan Raycus Fiber Laser Technologies Co.,Ltd.,Wuhan,Hubei 430000,China)

机构地区：[1]武汉锐科光纤激光技术股份有限公司,湖北武汉430000

出　　处：《光电子．激光》2022年第12期1263-1270,共8页Journal of Optoelectronics·Laser

摘　　要：使用COMSOL软件对体布拉格光栅(volume Bragg grating, VBG)外腔半导体激光器进行稳态热分析模拟仿真,研究VBG对半导体激光器的温度特性的影响。利用15%、20%两种VBG对888 nm半导体激光器进行外腔锁模,测试并分析外腔锁模条件下半导体激光器的输出特性和温度特性。结果表明,VBG外腔结构能够改善半导体激光器的光谱特性,提高半导体激光器的工作温度。在25℃条件下,当采用15%衍射效率的体光栅进行外腔锁模时,最大输出光功率为10.7 W,输出波长稳定在888 nm,光谱线宽为0.3 nm。COMSOL software is used to simulate the steady-state output of volume Bragg grating(VBG) external cavity semiconductor laser, and the influence of VBG on the temperature characteristics of semiconductor laser is studied.Two kinds of VBG(15% and 20%) are used to lock the mode of 888 nm semiconductor laser in external cavity.The output characteristics and temperature characteristics of semiconductor lasers under the condition of external cavity mode locking are tested and analyzed.The results show that the VBG external cavity structure can improve the spectral characteristics of the semiconductor laser and increase the operating temperature of the semiconductor laser.When the VBG with 15% diffraction efficiency is used for external cavity mode locking, the maximum output power is 10.7 W,the output wavelength is stable at 888 nm, and the spectral linewidth is 0.3 nm at 25 ℃.

关 键 词：半导体激光器 COMSOL 热分析 体布拉格光栅(VBG) 

分 类 号：TN248.4[电子电信—物理电子学]