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Proceedings Paper

Passively q-switched fiber lasers based on concave gold bipyramids saturable absorbers
Author(s): Jiaxin Song; Hanshuo Wu; Jian Wu; Jiangming Xu; Pu Zhou
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Paper Abstract

In our experiment, a kind of novel gold nanoparticles – concave gold bipyramids (CAuBPs) withlarge electromagnetic-field enhancement and broader plasmonic tuning rangehave been used as a saturable absorber (SA). Passively Q-switched thulium-doped and ytterbium-doped fiber lasers have been demonstrated based on CAuBPs SAs, the longitudinal surface plasmon resonance (LSPR) bands of which are located at 1 μm and 2 μm. In the 1 μm region, the maximum average output power of 9.61 mW is obtained with the shortest pulse width of 1.83 μs at the pulse repetition rate of 97.47 kHz.In the 2μm waveband, 9.72 mW average output power is obtained with the minimum pulse width of 4.56μs at the repetition rate of 19.9 kHz. To the best of our knowledge, it’s the first time that CAuBP has been used as SA, which verifies the saturable absorption properties of CAuBPs in the infrared range experimentally.

Paper Details

Date Published: 24 October 2017
PDF: 7 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104572L (24 October 2017); doi: 10.1117/12.2284911
Show Author Affiliations
Jiaxin Song, National Univ. of Defense Technology (China)
Hanshuo Wu, National Univ. of Defense Technology (China)
Jian Wu, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Jiangming Xu, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)
Pu Zhou, National Univ. of Defense Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber Laser (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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