体布拉格光栅外腔半导体激光器的光栅旋转角度容差

采用步进电机控制光栅角度，对200 μm和600 μm圆柱透镜准直的体布拉格光栅(VBG)外腔单管C封装半导体激光器进行了系统研究。实验结果表明:激光二极管(LD)驱动电流越大，准直效果越好，VBG的角度调整容差越小;快轴方向的准直效果越好，慢轴方向的光栅调节角度容差越大;对于衍射效率28%、厚1.4 mm的光栅，LD快轴发散角为7.3 mrad时，快轴方向的角度容差不大于3.2 mrad，慢轴方向的角度容差较快轴大约一个数量级。

Abstract

For high power linewidthnarrowed diode lasers, it’s important to study rotation angle tolerance of the volume Bragg grating (VBG) for narrowing the spectral linewidth of two dimensional diode laser stacks. The diode laser with the VBG’s external cavity and Cmounted modules is collimated by 200 μm and 600 μm cylindrical lens separately in the paper. The VBG’s angle tolerance is acquired by two stepper motors. According to the research, more accuracy is needed for the VBG’s adjustment with higher driving current and better beam collimation. If the laser diode is collimated better in fast axis direction, rotation angle tolerance in slow axis direction will be bigger. When a VBG with a diffraction efficiency of 28% and thickness of 1.4 mm is used to lock the wavelength of a laser diode with a fast axis divergence angle of 7.3 mrad, the grating’s rotation angle tolerance is no more than 3.2 mrad in the fast axis direction and that for the slow axis direction is one order of magnitude bigger.

参考文献

[1] Gourevitch A, Venus G, Smirnov V, et al. Continuous wave, 30 W laserdiode bar with 10 GHz linewidth for Rb laser pumping［J］. Optics Letters, 2008, 33(7):702704.

[2] 李志永, 谭荣清, 徐程, 等. 用于铷蒸气激光泵浦的可调谐窄线宽半导体激光器［J］. 光电子·激光, 2012, 23(5):902905.(Li Zhiyong, Tan Rongqing, Xu Cheng, et al. A tunable diode laser with narrow linewidth for Rb vapor laser pumping. Journal of Optoelectronics·Laser, 2012, 23(5):902905)

[3] 徐程，谭荣清, 李志永, 等. 半导体泵浦铷蒸气激光实现线偏振基模输出［J］. 强激光与粒子束, 2012,24(10):22692270.(Xu Cheng, Tan Rongqing, Li Zhiyong, et al. Diode pumped rubidium vapor laser with linearly polarized fundamental mode output. High Power Laser and Particle Beams, 2012,24(10):22692270)

[4] Shen Deyuan, Wang Yishan, Wei Zhao, et al. Narrow linewidth and widely tunable operation of Tmdoped fiber laser with volume Bragg gratings［C］//Proc of SPIE.2010: 784302.

[5] Zweiback J, Komashko A, Krupke W F. Alkali vapor lasers［C］//Proc of SPIE. 2010: 75810G.

[6] Podvyaznyy A, Venus G, Glevov L. 250 W diode laser for low pressure Rb vapor pumping［C］//Proc of SPIE. 2010:758313.

[7] Volodin B L,Dolgy S V, Melnik E D, et al. Wavelength stabilization and spectrum narrowing of highpower multimode laser diodes and arrays by use of volume Bragg gratings［J］. Optics Letters, 2004, 29(16):18911893.

[8] 郭林辉, 唐淳, 武德勇, 等. 大功率二极管激光线阵的“smile”测量方法［J］. 强激光与粒子束, 2009, 21(2):195198.(Guo Linhui, Tang Chun, Wu Deyong, et al. Measurement of “smile” for high power diode laser array . High Power Laser and Particle Beams, 2009, 21(2):195198)

[9] 李志永, 谭荣清, 黄伟, 等. 长腔长体布拉格光栅外腔半导体激光器［J］. 中国激光，2012, 39:110200.(Li Zhiyong, Tan Rongqing, Huang Wei, et al. Laser diode with long external cavity of volume bragg grating. Chinese Journal of Lasers, 2012, 39:110200)

[10] 辛国锋, 程灿, 瞿荣辉, 等. 体布拉格光栅外腔半导体激光器光谱特性研究［J］. 光学学报, 2007, 27(10):18211826.(Xin Guofeng, Cheng Can, Qu Ronghui, et al. Study of spectral characteristics of externalcavity semiconductor laser a volume bragg grating. Acta Optica Sinica, 2007, 27(10):18211826)

[11] Sturm V, Treusch H G ,Loosen P. Cylindrical microlenses for collimating highpower diode lasers［C］//Proc of SPIE.1997, 3097:717726.

李志永, 谭荣清, 徐程, 李琳, 刘世明, 赵志龙, 黄伟. 体布拉格光栅外腔半导体激光器的光栅旋转角度容差[J]. 强激光与粒子束, 2013, 25(2): 310. Li Zhiyong, Tan Rongqing, Xu Cheng, Li Lin, Liu Shiming, Zhao Zhilong, Huang Wei. Gratings’ rotation angle tolerance for diode lasers with external cavity formed by volume Bragg grating[J]. High Power Laser and Particle Beams, 2013, 25(2): 310.

体布拉格光栅外腔半导体激光器的光栅旋转角度容差

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