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Proceedings Paper

Narrow linewidth and widely tunable operation of Tm-doped fiber laser with volume Bragg gratings
Author(s): DeYuan Shen; Yishan Wang; Wei Zhao; Jingyu Long; Cheng Li; Kailiang Duan
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Paper Abstract

High power and widely tunable operation of Tm-doped silica fiber laser around 2 μm has been demonstrated using volume Bragg grating as the wavelength selection and spectrum narrowing element. The operating wavelength was continuously tunable from 1930 to 1821 nm, with > 52 W output power over a tuning range of 104 nm and a relatively narrow spectra width of < 15 pm. Over 60.8 W of diffraction limited (M2 ~ 1.5) CW output power was generated for 137 W of launched pump power, corresponding to a slope efficiency with respect to launched pump power of 46%. Output characteristics with a conventional replica diffraction grating for wavelength selection were also investigated as a comparison with that of using a volume Bragg grating. A maximum output power of 30.6 W at 1963 nm was generated for 79 W of launched pump power and the lasing wavelength could be tuned over 196 nm from 1859 to 2055 nm at output power levels in excess of 20 W. The bandwidth of the laser output was ~ 0.8 nm.

Paper Details

Date Published: 17 November 2010
PDF: 6 pages
Proc. SPIE 7843, High-Power Lasers and Applications V, 784302 (17 November 2010); doi: 10.1117/12.870061
Show Author Affiliations
DeYuan Shen, Xi'an Institute of Optics and Precision Mechanics (China)
Yishan Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Wei Zhao, Xi'an Institute of Optics and Precision Mechanics (China)
Jingyu Long, Xi'an Institute of Optics and Precision Mechanics (China)
Cheng Li, Xi'an Institute of Optics and Precision Mechanics (China)
Kailiang Duan, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 7843:
High-Power Lasers and Applications V
Upendra N. Singh; Dianyuan Fan; Jianquan Yao; Robert F. Walter, Editor(s)

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