Experimental research on self-phase modulation of high power fiber laser

Kuang Hongshen; Zhao Fangzhou; Gao Jing; Ge Tingwu; Wang Zhiyong

An experimental research on self-phase modulation (SPM) of high power picosecond pulse amplifier was conducted by high-power all-fiber picosecond pulse fiber laser with an MOPA configuration. The seed source is a self-built fiber laser passively mode-locked by semiconductor saturable absorber mirror (SESAM). To avoid nonlinear effect, the repetition rate of the seed pulse should be increased to 328 MHz through a self-made repetition multiplier before amplification. The amplifier employed a three-level amplifying structure and finally received a stable picosecond pulse laser output with a center wavelength of 1 066.5 nm, a 3 dB spectrum width of 2.5 nm, and an average power of 91W. In the experiment, there was research on change of spectrum caused by SPM in the process of amplification. An analysis of the output spectrum of the laser demonstrates that with the increase of power, the influence of the initial chirp and the shape of the pulse on the SPM effect of high power fiber laser becomes deepens. In the mean time, it is also influenced by self-steepening effect.

1. National Center of laser Technology Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

Received Date: 2014-01-05

Rev Recd Date: 2014-02-10

Publish Date: 2014-09-25

Key words:

Abstract: An experimental research on self-phase modulation (SPM) of high power picosecond pulse amplifier was conducted by high-power all-fiber picosecond pulse fiber laser with an MOPA configuration. The seed source is a self-built fiber laser passively mode-locked by semiconductor saturable absorber mirror (SESAM). To avoid nonlinear effect, the repetition rate of the seed pulse should be increased to 328 MHz through a self-made repetition multiplier before amplification. The amplifier employed a three-level amplifying structure and finally received a stable picosecond pulse laser output with a center wavelength of 1 066.5 nm, a 3 dB spectrum width of 2.5 nm, and an average power of 91W. In the experiment, there was research on change of spectrum caused by SPM in the process of amplification. An analysis of the output spectrum of the laser demonstrates that with the increase of power, the influence of the initial chirp and the shape of the pulse on the SPM effect of high power fiber laser becomes deepens. In the mean time, it is also influenced by self-steepening effect.

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Reference (23)

[1]	Zhang Liming, Zhou Shouhuan, Zhao Hong, et al.Experiment research of 1 kW all fiber laser [J]. Laser Infrared, 2012, 42(10): 1127-1130. (in Chinese)张利明, 周寿桓, 赵鸿, 等. 1 kW 全光纤激光器实验研究[J]. 激光与红外, 2012, 42(10): 1127-1130.
[2]
[3]	Su Rongtao, Zhou Pu, Xiao Hu, et al. MOPA structuresingle-frequency nanosecond pulsed laser in all fiber format[J]. Chinese Journal of Lasers, 2011, 38(11): 1102013. (inChinese)粟荣涛, 周朴, 肖虎, 等. MOPA 结构的单频纳秒脉冲全光纤激光器[J]. 中国激光, 2011, 38(11): 1102013.
[4]
[5]
[6]	Wang Lin, Wang Dayong, Wang Tieliu. Novel theory andtechnique for generating optical pulses at high repetition rates[J]. Infrared and Laser Engineering, 2006, 35(S): 1-5. (inChinese)王林, 王大勇, 王铁流. 可产生高重复频率光脉冲的新理论与新技术[J]. 红外与激光工程2006, 35(S): 1-5.
[7]
[8]	Liu Xueming, Mao Dong, Wang Leiran. Recent progress ininvestigation and application of dissipative soliton in fiberlasers [J]. Chin Sci Bull, 2012, 57 (32) : 3039-3054. ( inChinese)刘学明, 毛东, 王擂然. 耗散孤子光纤激光器的研究进展和应用[J]. 科学通报2012, 57(32): 3039-3054.
[9]	Lus A Gomes, Lasse Orsila, Tomi Jouhti, et al. PicosecondSESAM-based ytterbium mode-locked fiber lasers [J].Journal of Selected Topics in Quantum Electronics, 2004,10(1): 129-136.
[10]
[11]
[12]	Limpert J, Liem A, Gabler T, et al. High-average-powerpicosecond Yb-doped fiber amplifier [J]. Optics Letters,2001, 26(23): 1849- 1851.
[13]	Kang Kang Chen, Jonathan H V Price, Shaif-ul Alam, et al.Polarisation maintaining 100W Yb-fiber MOPA producingJ pulses tunable in duration from 1 to 21 ps [J]. OpticsExpress, 2010, 18(14): 14385-14394.
[14]
[15]	Liu Hongjun, Gao Cunxiao, Tao Jintao, et al. Compacttunable high power picosecond source based on Yb-dopedfiber amplification of gain switch laser diode [J]. OpticsExpress, 2008, 16(11): 7888-7893.
[16]
[17]	Zhang Xiao, Song Yangrong, Yu Zhenhua, et al.Characteristics of ytterbium-doped double cladding pulsedfiber amplifiers [J]. Acta Photonica Sinica, 2011, 40 (9):1287-1291.
[18]
[19]
[20]	Wang Yuanxiang, Jiang Peipei, Yang Dingzhong, et al. All-fiberized master oscillator power amplifier structured pulsedYb fiber laser [J]. Chinese Journal of Lasers, 2009, 36(7):1861-1865. (in Chinese)汪园香, 姜培培, 杨丁中, 等. 全光纤结构主振荡功率放大型掺镱脉冲光纤激光器[J]. 中国激光, 2009, 36(7): 1861-1865.
[21]
[22]	Chen Shengping, Chen Hongwei, Hou Jing, et al. 30 Wpicosecond pulsed fiber laser and high power supercontinuumgeneration [J]. Chinese Journal of Lasers, 2010, 37 (8):194 3-1949. (in Chinese)陈胜平, 谌鸿伟, 侯静, 等. 30W 皮秒脉冲光纤激光器及高功率超连续谱的产生[J]. 中国激光，2010, 37(8): 1943-1949.
[23]	Dai Xianzhe, Luo Zhengqian, Ye Chenchun, et al.Theoretical and experimental study of Yb3+-doped double-cladding fiber laser [J]. Infrared and Laser Engineering,2007, 36(S): 32-35. (in Chinese)戴贤哲, 罗正钱, 叶陈春, 等. 掺Yb3+双包层光纤激光器的理论及实验研究[J]. 红外与激光工程, 2007, 36(S): 32-35.

Experimental research on self-phase modulation of high power fiber laser

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