Lasers, Fiber Optics, and Communications

28 W CW linearly polarized single mode all-fiber thulium-doped fiber laser operating at 1.95  μm

[+] Author Affiliations
Jiachen Wang

Korea Institute of Science and Technology, Center for Opto-Electronic Convergence Systems, Seoul, Republic of Korea

Ajou University, Department of Physics, Suwon, Republic of Korea

Dong-il Yeom

Ajou University, Department of Physics, Suwon, Republic of Korea

Ajou University, Department of Energy Systems Research, Suwon, Republic of Korea

Sang Bae Lee, Kwanil Lee

Korea Institute of Science and Technology, Center for Opto-Electronic Convergence Systems, Seoul, Republic of Korea

Opt. Eng. 56(4), 046108 (Apr 21, 2017). doi:10.1117/1.OE.56.4.046108
History: Received January 23, 2017; Accepted March 31, 2017
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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 M2 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.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Jiachen Wang ; Dong-il Yeom ; Sang Bae Lee and Kwanil Lee
"28 W CW linearly polarized single mode all-fiber thulium-doped fiber laser operating at 1.95  μm", Opt. Eng. 56(4), 046108 (Apr 21, 2017). ; http://dx.doi.org/10.1117/1.OE.56.4.046108


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