期刊
OPTICAL MATERIALS EXPRESS
卷 9, 期 2, 页码 373-383出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.9.000373
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资金
- National Science Foundation (NSF) [11474187, 11747149]
In our work Bi2Se3 was successfully used for demonstrating a large-energy passively Q-switched erbium-doped fiber laser. Bi2Se3 nanosheets were fabricated by a catalyst-free chemical vapor deposition method. Based on a pyrolysis tape transfer method, the Bi2Se3 thin film on the SiO2 substrate was transferred to the end of the optical connector for constructing the fiber-integrated saturable absorber. The saturation intensity and modulation depth of the Bi2Se3 saturable absorber were 81.1 MW/cm(2) and 15.7%, respectively. A stable Q-switched operation at 1549.99 run with a maximum average output power of 23.61 mW was achieved. The minimum pulse duration and the largest pulse energy were 1.34 mu s and 224.5 nJ, respectively. In comparison with previous works, the single pulse energy (224.5 nJ) obtained in our experiment was improved significantly. Our experimental results fully proved that CVD-Bi2Se3 has good performance in obtaining large energy pulse operations and will promote the applications of 2D CVD-materials in the field of pulse laser. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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