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Proceedings Paper

1720-nm narrow-linewidth all-fiber ring laser based on thulium-doped fiber
Author(s): Junxiang Zhang; Quan Sheng; Shuai Sun; Chaodu Shi; Shijie Fu; Wei Shi; Jianquan Yao
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Paper Abstract

A 1720-nm thulium-doped all-fiber laser based on a ring-cavity configuration is demonstrated. The long-wavelength lasing near the 1.9-μm thulium emission peak was suppressed using a wavelength division multiplexer and single-mode– multimode–single-mode (SMS) fiber device, which together served as a short-pass filter instead of the grating devices usually used in 1.7-μm thulium fiber lasers. A stable hundred-milliwatt-level 1720-nm laser output with a narrow spectral linewidth on the order of gigahertz was obtained after optimizing the output coupling, the active fiber length and the SMS device.

Paper Details

Date Published: 21 February 2020
PDF: 6 pages
Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112600V (21 February 2020); doi: 10.1117/12.2543936
Show Author Affiliations
Junxiang Zhang, Tianjin Univ. (China)
Quan Sheng, Tianjin Univ. (China)
Shuai Sun, Tianjin Univ. (China)
Chaodu Shi, Tianjin Univ. (China)
Shijie Fu, Wyant College of Optical Sciences (United States)
Wei Shi, Tianjin Univ. (China)
Jianquan Yao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 11260:
Fiber Lasers XVII: Technology and Systems
Liang Dong, Editor(s)

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