Open AccessHigh power ytterbium-doped rod-type three-level photonic crystal fiber laser
Author(s) -
Johan Boullet,
Yoann Zaouter,
Rudy Desmarchelier,
M. Cazaux,
F. Salin,
Julien Saby,
Ramatou Bello-Doua,
Éric Cormier
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.017891
Subject(s) - materials science , fiber laser , photonic crystal fiber , optics , laser , laser power scaling , ytterbium , optoelectronics , active laser medium , doping , wavelength , physics
In this paper, we investigate power scalability of ytterbium-doped ultra large core photonic crystal fiber laser operating on the zero-line transition. We first report on an 80 microm core diameter ytterbium-doped rod-type photonic crystal fiber laser emitting up to 94 W in continuous wave regime when operating at 977 nm, which is to our knowledge the highest output power ever achieved from a single-mode solid-state laser operating at this wavelength. Key parameters of ytterbium-doped three-level laser, such as transparency pump intensity, pump absorption saturation, and gain competition between three and four-level laser operation are then discussed in the particular context of high power fiber laser operating at 977 nm.