Journal
OPTICS EXPRESS
Volume 27, Issue 14, Pages 19843-19851Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.019843
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Funding
- National Key R&D Program of China [2016YFE0126500]
- Natural Science Foundation of China (NSFC) [61575050]
- Fundamental Research Funds for the Central Universities [HEUCFG201841, 3072019CF2513]
- Key Program for Natural Science Foundation of Heilongjiang Province of China [ZD2016012]
- Open Fund of the State Key Laboratory on Integrated Optoelectronics [IOSKL2016KF03]
- 111 project [B13015]
- Natural Science Fund of Heilongjiang Province [JJ2019LH0837]
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Q-switched pulse laser generation is successfully demonstrated in both Erbium-doped fibre laser (EDFL) and Thulium-doped fibre laser (TDFL) cavities by employing Nickel disulfide (NiS2) as a saturable absorber (SA). Q-switched pulse laser operation at 1.55 mu m and 2.0 mu m is obtained at low pump power levels of 37 mW and 48 mW, respectively. For the EDFL, stable passively Q-switched laser output at a wavelength of 1561.86 nm is achieved, with a minimum pulse duration of 237 ns and a repetition rate of 243.9 kHz. For the TDFL, the centre wavelength of the laser output is 1915.5 nm, with a minimum pulse duration of 505 ns and a repetition rate of 214.68 kHz. NiS2 is used as SA for Q-switched laser generation over a broadband wavelength for the first time. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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