Open AccessHigh-power narrow-bandwidth thulium fiber laser with an all-fiber cavity
Author(s) -
Yulong Tang,
Chongyuan Huang,
Shengli Wang,
Hongqiang Li,
Jianqiu Xu
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.017539
Subject(s) - materials science , optics , fiber laser , fiber bragg grating , laser linewidth , dispersion shifted fiber , polarization maintaining optical fiber , graded index fiber , laser , optical fiber , laser power scaling , optoelectronics , plastic optical fiber , photonic crystal fiber , slope efficiency , fiber optic sensor , wavelength , physics
We report diode pumped high power 2-µm Tm(3+) fiber lasers with an all-fiber configuration. The all-fiber configuration is completed by specially designed fiber Bragg gratings with similar structure parameters matched to the gain fiber. The maximum output power is 137 W with an optical-to-optical slope efficiency of 62% with respect to absorbed 793-nm pump power. The laser wavelength is stabilized at ~2019 nm with a spectral linewidth less than 3 nm across all output levels. To the best of our knowledge, this is the highest 2-µm laser output from a single narrow bandwidth all-fiber laser system.