Journal
OPTICS EXPRESS
Volume 24, Issue 15, Pages 16287-16296Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.016287
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Funding
- National Natural Science Foundation of China [61308049]
- Guangdong Natural Science Foundation of China [2014A030313387]
- Shenzhen Science and Technology Project of China [JCYJ20140418091413568]
- Open Fund of IPOC (BUPT) [IPOC2015B003]
- Guangdong Youth Science and Technology Innovation Talents of China [2014TQ01X539]
- Guangdong Innovation Foundation of China [2015KTSCX016]
- Guangzhou Key Collaborative Innovation Foundation of China [2016201604030084]
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In this paper, we demonstrate a high-damage-resistant tungsten disulfide saturable absorber mirror (WS2-SAM) fabricated by magnetron sputtering technique. The WS2-SAM has an all-fiber-integrated configuration and high-damage-resistant merit because the WS2 layer is protected by gold film so as to avoid being oxidized and destroyed at high pump power. Employing the WS2-SAM in an Erbium-doped fiber laser (EDFL) with linear cavity, the stable Q-switching operation is achieved at central wavelength of 1560 nm, with the repetition rates ranging from 29.5 kHz to 367.8 kHz and the pulse duration ranging from 1.269 mu s to 154.9 ns. For the condition of the maximum pump power of 600 mW, the WS2-SAM still works stably with an output power of 25.2 mW, pulse energy of 68.5 nJ, and signal-noise-ratio of 42 dB. The proposed WS2-SAM configuration provides a promising solution for advanced pulsed fiber lasers with the characteristics of high damage resistance, high output energy, and wide tunable frequency. (C) 2016 Optical Society of America
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