1.
Opt Lett
; 36(9): 1557-9, 2011 May 01.
Article
in English
| MEDLINE
| ID: mdl-21540926
ABSTRACT
We report on the characteristics of an active fiber with core material made by sintering of Yb-doped silica powders as an alternative to a conventional modified chemical vapor deposition (MCVD) technique. This material provides the possibility to design very large and homogenously rare-earth doped active fiber cores. We have determined a fiber background attenuation of 20 dB/km and measured a slope efficiency of 80%. These values are comparable to established fibers made by MCVD technology.