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Optical Engineering • new

28 W CW linearly polarized single mode all-fiber thulium-doped fiber laser operating at 1.95    μ m
Author(s): Jiachen Wang; Dong-il Yeom; Sang Bae Lee; Kwanil Lee
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Paper Abstract

An all-fiber type, CW, linearly polarized thulium-doped fiber laser is reported. Highly linear polarization was achieved by a special management of fiber Bragg gratings, which performs as the laser cavity reflectors. The laser generated 28 W signal output at 1949 nm with a slope efficiency of 47.3%. The polarization extinction ratio of the laser was measured to be around 20 dB. The beam quality of the laser was near diffraction-limited, with M 2 of 1.1. The laser’s output features make it to be a potential light source for some important applications such as for pumping holmium-doped solid state lasers.

Paper Details

Date Published: 21 April 2017
PDF: 5 pages
Opt. Eng. 56(4) 046108 doi: 10.1117/1.OE.56.4.046108
Published in: Optical Engineering Volume 56, Issue 4
Show Author Affiliations
Jiachen Wang, Korea Institute of Science and Technology (Korea, Republic of)
Ajou Univ. (Korea, Republic of)
Dong-il Yeom, Ajou Univ. (Korea, Republic of)
Sang Bae Lee, Korea Institute of Science and Technology (Korea, Republic of)
Kwanil Lee, Korea Institute of Science and Technology (Korea, Republic of)


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