1.
Opt Lett
; 40(18): 4360-3, 2015 Sep 15.
Article
in English
| MEDLINE
| ID: mdl-26371936
ABSTRACT
A watt-level all-fiber laser radiating at the wavelength of 1.7 µm in a continuous-wave regime was developed by using bismuth-doped high-germania optical fiber. A maximum slope efficiency of 33% with respect to the launched pump power was achieved. The dependencies of the slope efficiencies of bismuth-doped fiber laser versus the length of active fiber and reflectivity of the output mirror were obtained.