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作者:

Li, Pingxue (Li, Pingxue.) (学者:李平雪) | Wang, Xiaoxiao (Wang, Xiaoxiao.) | Su, Ning (Su, Ning.) | Su, Meng (Su, Meng.) | Shao, Yue (Shao, Yue.) | Xiao, Kun (Xiao, Kun.) | Liu, Jianguo (Liu, Jianguo.)

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摘要:

A high repetition rate and wide spectrum picosecond pulsed all-fiber Yb-doped laser is experimentally studied. The laser with all-fiber structure uses the master oscillator power amplifier technology. The broadening of the spectrum is caused by the nonlinear effect. Passively mode-locked technique of oscillator is realized by semiconductor saturable absorber mirror. The laser operates at 1031.3 nm with 3 dB spectral width of 1.51 nm. Its pulse width is 3.1 ps and the repetition frequency is 21.3269 MHz. An acoustic-optic modulator is applied to reduce the repetition rate to 2.1 MHz. The down-converted signal light passes through a three-stage Yb-doped fiber amplifier, and the main power amplification is realized in 30 μm/250 μm large mode field double-clad Yb-doped fiber. In the end, the pulse laser output is obtained with average output power of 20 W, pulse width of 20.8 ps, spectrum range from 640~1700 nm, single pulse energy of 9.5 μJ, and corresponding peak power of 0.46 MW. © 2017, Chinese Lasers Press. All right reserved.

关键词:

Pulsed lasers Fiber amplifiers Passive mode locking Power amplifiers Semiconductor lasers Semiconductor saturable absorber mirrors Fibers Lasers

作者机构:

  • [ 1 ] [Li, Pingxue]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Wang, Xiaoxiao]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Su, Ning]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Su, Meng]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Shao, Yue]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Xiao, Kun]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 7 ] [Liu, Jianguo]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China

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来源 :

Chinese Journal of Lasers

ISSN: 0258-7025

年份: 2017

期: 2

卷: 44

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SCOPUS被引频次: 2

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