期刊
OPTICS LETTERS
卷 42, 期 4, 页码 671-674出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.42.000671
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资金
- National Natural Science Foundation of China (NSFC) [61275050, 61378025]
- Shenzhen Science and Technology Projects [JCYJ20160414160109018]
We experimentally demonstrated a compact single-wall carbon-nanotube (SWNT)-based deep-red passively Q-switched Pr3+-doped ZBLAN all-fiber laser operating at 716 nm. A free-standing SWNT/polyvinyl alcohol composite film embedded between a pair of fiber connectors was employed as a saturable absorber (SA). The deepred Q-switched operation is attributed to the combination of implementing a pair of fiber end-facet mirrors to achieve the linear laser resonator and incorporating a SWNT-SA into the cavity as a Q-switcher. Stable short-pulse generation with a duration of 2.3 mu s was realized. When gradually increasing the incident pump power, the pulse repetition rate can be linearly tuned from 32.6 to 86.5 kHz, corresponding to a maximum average output power of 1.5 mW and the highest single-pulse energy of 18.3 nJ. To the best of our knowledge, this is the first demonstration of SWNTbased SA for a Q-switched laser at a deep-red wavelength similar to 716 nm. (C) 2017 Optical Society of America
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