Open AccessMonolithic all-glass pump combiner scheme for high-power fiber laser systems
Author(s) -
Jun Ki Kim,
Christian Hagemann,
Sabu Thomas,
Thomas Peschel,
Steffen Böhme,
Ramona Eberhardt,
Andreas Tünnermann
Publication year - 2010
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.18.013194
Subject(s) - optics , materials science , fiber laser , ytterbium , planar , optical fiber , fiber , laser , laser power scaling , power (physics) , double clad fiber , graded index fiber , optoelectronics , fiber optic sensor , physics , computer science , computer graphics (images) , quantum mechanics , composite material
We report on an integrated all-glass pump combiner for ytterbium-doped high power fiber lasers. The combining of multiple pump fibers with an active double clad fiber for high power amplification was successfully achieved by splicing them to a dichromatically coated planar convex lens. The measured coupling efficiency of such a combining scheme was typically in excess of 80%, with 86.5% achieved in maximum. Theoretical analysis is discussed in order to get optimized parameters and to consider the scaling of this type of coupler to higher average powers.