用于光纤激光器光谱组束的外腔反馈研究

为了解决光纤激光器外腔光谱组束中存在像差以及发光单元反馈不足等问题, 采用将组束系统中单个传输透镜准直和聚焦功能分离的方法, 搭建了光纤激光外腔反馈系统, 实现了激光波长的锁定。结果表明, 该系统光光转换效率为91.5%, 反馈输出线宽为0.16nm, 输出功率为29.7W, 组束方向M2=1.241, 非组束方向M2=1.171,实验结果同理论分析相符。该外腔反馈方案可以应用于光纤激光器光谱组束。

Abstract

In order to solve the problems, such as aberration in spectrum beam combining (SBC) of external cavity of fiber lasers and insufficient feedback of light emitting units, separating the collimation and focusing function of a single transmission lens in a beam combining system instead of multiple lenses, an external cavity feedback system for an optical fiber laser was set up. Laser wavelength was locked. Through theoretical analysis and experimental verification, the result shows that, optical-optical efficiency is 91.5%, output line width of feedback is 0.16nm, output power is 29.7W, M2 in beam combining direction is 1.241, and M2 of non beam combining direction is 1.171. Experimental results are in agreement with theoretical analysis. The external cavity feedback scheme can be applied to spectrum beam combining of fiber lasers.

参考文献

[1] LOU Q H, ZHOU J, WANG Zh J. Analysis of high-power fiber laser weapons［J］. Laser Technology, 2003, 27(3): 161-165(in Chinese).

[2] BACHMAMM F, LOOSEN P, POPRAWE R. High power diode lasers techology and applications［M］. New York, USA: Springer, 2007: 38-39, 215-217.

[3] ZERVAS M N, CODEMARD C A. High power fiber lasers: a review［J］. IEEE Journal of Selected Topics in Quantum Electronics, 2014, 20(5):0904123.

[4] DAWSON J W, MESSERLY M J, BEACH R J, et al. Analysis of the scalability of diffraction-limited fiber lasers and amplifiers to high av- erage power［J］. Optics Express, 2008, 16(17):13240.

[5] CIAPURIN I V, GLEBOV L B, GLEBOVA L N, et al. Incoherent combining of 100W Yb-fiber laser beams by PTR Bragg grating, advances in fiber devices［J］. Proceedings of the SPIE, 2003, 4974: 209-219.

[6] MADASAMY P, LOFTUS T, THOMAS P, et al. Comparison of spectral beam combining approaches for high power fiber laser systems［J］. Proceedings of the SPIE 2008, 6952: 1-10.

[7] LOFTUS T H, THOMAS A M, HOFFMAN P R, et al. Spectrally beam-combined fiber lasers for high-average-power applications［J］. IEEE Journal of Select Topics in Quantum Electronics, 2007, 13(3):487-497.

[8] AFZAL R S, HONEA E, SAVAGE-LUECHS M, et al. Spectrally beam combined fiber lasers for high power, efficiency and brightness［J］. Proceedings of the SPIE, 2012, 8547:1-4.

[9] ZHANG D Y, HAO J P, ZHU Ch, et al. Review on spectral beam combining of fiber lasers［J］. Laser & Infrared, 2016, 46(5): 517-518(in Chinese).

[10] COOK C C, FAN T Y. Spectral beam combining of Yb-doped fiber lasers in an external cavity［J］. Advanced Solid-State Lasers, 1999, 26(10):163-166.

[11] AUGUST S J, GOYAL A K, AGGARWAL R L, et al. Wavelength beam combining of ytterbium fiber lasers.［J］. Optics Letters, 2003, 28(5): 331-332.

[12] RSER F, KLINGEBIEL S, LIEM A, et al. Spectral beam combining of fiber lasers［J］. Proceedings of the SPIE, 2006, 6102:61020T-1.

[13] KLINGEBIEL S, RSER F, ORTAC B, et al. Spectral beam combining of Yb-doped fiber lasers with high efficiency［J］.Journal of the Optical Society of America, 2007, 24(8): 1716-1720.

[14] THOMAS H L. High power spectrally beam combined fiber laser with near-diffraction limited beam quality［J］.Proceedings of the SPIE, 2007,6453:64530S-1.

[15] WIRTH C, SCHMIDT O, TSYBIN I, et al. High average power spectral beam combining of four fiber amplifiers to 8.2kW ［J］. Optics Letters, 2011, 36(16): 3118-3119.

[16] HONEA E, AFZAL R S, SAVAGE-LEUCHS M, et al. Advances in fiber laser spectral beam combinings for power scaling［J］. Proceedings of the SPIE, 2016, 9730:97300Y-1.

[17] MA Y, YAN H, TIAN F, et al. Common aperture spectral beam combination of fiber lasers with 5kW power high-efficiency and high-quality output. ［J］.High Power Laser and Particle Beams, 2015, 27(5): 040101(in Chinese).

[18] MA Y, YAN H, PENG W J, et al. 9.6kW common aperture sprectral beam combination system based on multi-channel narrow-linewidth fiber lasers［J］. Chinese Journal of Lasers, 2016, 43(9): 0901009(in Chinese).

[19] ZHENG Y, YANG Y, WANG J, et al.10.8K spectral beam combination of eight all-fiber superfluorescent sources and their dispersion compensation［J］. Optics Express, 2016, 24(11):12063-12071.

[20] LIU A, MEAD R, VATTER T, et al. Spectral beam combining of high power fiber lasers［J］.Proceedings of the SPIE,2004, 5335: 83-84.

刘小溪, 王学锋, 阚宝玺, 王军龙, 朱占达, 郑也. 用于光纤激光器光谱组束的外腔反馈研究[J]. 激光技术, 2018, 42(6): 835. LIU Xiaoxi, WANG Xuefeng, KAN Baoxi, WANG Junlong, ZHU Zhanda, ZHENG Ye. Research of external cavity feedback for spectral beam combining of fiber lasers[J]. Laser Technology, 2018, 42(6): 835.

用于光纤激光器光谱组束的外腔反馈研究

关于本站 Cookie 的使用提示

全站搜索

用于光纤激光器光谱组束的外腔反馈研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索