中国激光, 2013, 40 (8): 0802005, 网络出版: 2013-07-09   

亚纳秒脉宽掺镱光纤放大器及其倍频特性研究

Sub-Nanosecond Yb-Doped Fiber Amplifier and Its Second Harmonic Generation Characteristics
作者单位
1 中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
2 中国科学院大学, 北京 100049
3 上海飞博激光科技有限公司, 上海 201807
摘要
以被动调Q的小型Nd:YAG/Cr4+:YAG激光器为种子光源,以后向抽运的掺镱双包层光纤为功率放大介质,经过一级光纤功率放大,获得了平均功率5.5 W,重复频率9 kHz的激光输出,脉冲宽度为575 ps,峰值功率达到1 MW。采用非临界相位匹配的LBO晶体,对该亚纳秒脉宽光纤放大器进行了单通倍频实验研究。当晶体温度为150.5 ℃、基频光功率为2.7 W时,获得了平均功率1.3 W、峰值功率250 kW的倍频绿光输出,倍频转换效率为48%。
Abstract
A Q-switched Nd:YAG/Cr4+:YAG laser is used to seed a one-stage amplifier featuring backward pumped Yb-doped double-cladding fiber as the power amplifier. Average power of 5.5 W with repetition rate of 9 kHz is achieved, corresponding to pulse duration of 575 ps and peak power of 1 MW. Based on the fiber amplifier at 2.7 W, 1.3 W green laser is obtained by single-pass frequency doubling using non-critical phase matching LBO crystal at 150.5 ℃, and its peak power reaches 250 kW, with conversion efficiency of 48%.
参考文献

[1] Lin Li. The advances and characteristics of high-power diode laser materials processing[J]. Laser Material Processing, 2000, 34(4-6): 231-253.

[2] Y Hori, I Kuromatsu, Y Sugimura. Photoselective vaporization of the prostate using high power (80 W) KTP laser: one year follow up of the first 101 patients in Japan[J]. Int J Urol, 2008, 15(12): 1067-1071.

[3] W E Glenn. Solid-state light sources for color projection[C]. Advanced Solid State Lasers (ASSL), 1997. 38-45.

[4] Y Nabekawa, K Kuramoto, T Togashi, et al.. Generation of 0.66-TW pulses at 1 kHz by a Tisapphire laser[J]. Opt Lett, 1998, 23(17): 1384-1386.

[5] W Wu, T Ren, J Zhou, et al.. Compact all-fiber 102 W picosecond MOPA laser with a narrow spectral linewidth[J]. Chin Phys Lett 2011, 28(11): 114206.

[6] A Liu, M A Norsen, R D Mead. 60-W green output by frequency doubling of a polarized Yb-doped fiber laser[J]. Opt Lett, 2005, 30(1): 67-69.

[7] A V Babushkin, D V Gapontsev, N S Platonov, et al.. Pulsed fiber laser with 30 W output power at 532 nm[C]. SPIE, 2006, 6102: 61021E.

[8] S Alam, K Chen, J R Hayes, et al.. Over 55 W of frequency doubled light at 530 nm pumped by an all-fiber, diffraction limited, picosecond fibre MOPA[C]. SPIE, 2010, 7580: 758007.

[9] H Yu, J Zhou, X Wushouer, et al.. 40 W picosecond fiber amplifier with the large mode-area polarized crystal fiber[J]. Laser Phys Lett, 2009, 6(9): 653-656.

[10] A V Smith. How to select nonlinear crystals and model their performance using SNLO software[C]. SPIE, 2003, 4972: 50-57.

[11] 钱世雄, 王恭明. 非线性光学原理与进展[M]. 上海: 复旦大学出版社, 2001. 53-73.

    Qian Shixiong, Wang Gongming. Nonlinear Optics: Principium and Recent Developments[M]. Shanghai: Fudan University Press, 2001. 53-73.

[12] V G Dmitriev, G G Gurzadyan, D N Nikogosyan. 非线性光学晶体手册[M]. 王继扬 译. 北京: 高等教育出版社, 2009. 36-44, 62-71.

    V G Dmitriev, G G Gurzadyan, D N Nikogosyan. Handbook of Nonlinear Optical Crystals[M]. Wang Jiyang transl. Beijing: Higher Education Press, 2009. 36-44, 62-71.

[13] 楼祺洪. 高功率光纤激光器及其应用[M]. 合肥: 中国科学技术大学出社, 2010. 130-143.

    Lou Qihong. High-Power Fiber Laser and Its Applications[M]. Hefei: University of Science and Technology of China Press, 2010. 130-143.

[14] G D Van Wiggeren, R Roy. Transmission of linearly polarized light through a single-mode fiber with random fluctuations of birefringence[J]. Appl Opt,1999, 38(18): 3888-3892.

王子薇, 杜松涛, 何晶, 王兆坤, 周军, 魏运荣, 孟俊清, 李骁军. 亚纳秒脉宽掺镱光纤放大器及其倍频特性研究[J]. 中国激光, 2013, 40(8): 0802005. Wang Ziwei, Du Songtao, He Jing, Wang Zhaokun, Zhou Jun, Wei Yunrong, Meng Junqing, Li Xiaojun. Sub-Nanosecond Yb-Doped Fiber Amplifier and Its Second Harmonic Generation Characteristics[J]. Chinese Journal of Lasers, 2013, 40(8): 0802005.

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