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High-energy pulse generation using Yb-doped Q-switched fiber laser based on single-walled carbon nanotubes |
| Wang Jun-Li (王军利)a, Wang Xue-Ling (汪雪玲)a, He Bo-Rong (贺博荣)a, Zhu Jiang-Feng (朱江峰)a, Wei Zhi-Yi (魏志义)b, Wang Yong-Gang (王勇刚)c |
a School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China |
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Abstract An all-fiber laser using a single-walled carbon nanotube (SWCNT) as the saturable absorber (SA) for Q-switched operation in the 1031 nm region is demonstrated in this work. A lasing threshold as low as 17 mW was realized for continuous wave operation. By further increasing the pump power, stable Q-switched pulse trains are obtained when the pump power ranges from 38 mW to 125 mW, corresponding to repetition rate varying from 40.84 kHz to 66.24 kHz, the pulse width from 2.0 μs to 1.0 μs， and the highest single pulse energy of 40.6 nJ respectively.
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Received: 03 March 2015
Revised: 02 April 2015
Accepted manuscript online:
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PACS:
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76.30.Kg
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(Rare-earth ions and impurities)
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42.55.Wd
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(Fiber lasers)
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42.60.Gd
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(Q-switching)
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88.30.rh
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(Carbon nanotubes)
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| Fund: Project supported by the National Key Scientific Instruments Development Program of China (Grant No. 2012YQ120047). |
Corresponding Authors:
Wang Jun-Li
E-mail: dispersion@126.com
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Cite this article:
Wang Jun-Li (王军利), Wang Xue-Ling (汪雪玲), He Bo-Rong (贺博荣), Zhu Jiang-Feng (朱江峰), Wei Zhi-Yi (魏志义), Wang Yong-Gang (王勇刚) High-energy pulse generation using Yb-doped Q-switched fiber laser based on single-walled carbon nanotubes 2015 Chin. Phys. B 24 097601
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