Open Access3-Dimensional thermal analysis and active cooling of short-length high-power fiber lasers
Author(s) -
L. Li,
H. Li,
Tiequn Qiu,
V. L. Temyanko,
M. M. Morrell,
Axel Schülzgen,
Arash Mafi,
Jerome V. Moloney,
N. Peyghambarian
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.003420
Subject(s) - fiber laser , materials science , optics , cladding (metalworking) , laser , laser power scaling , double clad fiber , polarization maintaining optical fiber , optical fiber , dispersion shifted fiber , core (optical fiber) , optoelectronics , fiber optic sensor , physics , composite material
A fully 3-dimensional finite element model has been developed that simulates the internal temperature distribution of short-length high-power fiber lasers. We have validated the numerical model by building a short, cladding-pumped, Er-Yb-codoped fiber laser and measuring the core temperature during laser operation. A dual-end-pumped, actively cooled, fiber laser has generated >11 W CW output power at 1535 nm from only 11.9 cm of active fiber. Simulations indicate power-scaling possibilities with improved fiber and cooling designs.