Open AccessInfluence of pump bandwidth on the efficiency of side-pumped, double-beam mode-controlled lasers: establishing a new record for Nd:YLiF_4 lasers using VBG
Author(s) -
Niklaus Ursus Wetter,
Alessandro Melo Deana
Publication year - 2015
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.23.009379
Subject(s) - laser linewidth , optics , laser , materials science , laser beam quality , slope efficiency , injection seeder , resonator , diode , optoelectronics , beam (structure) , semiconductor laser theory , laser beams , fiber laser , physics
We analyze the performance of a VBG equipped diode of narrow linewidth in a side-pumped double-beam, mode-controlled resonator and demonstrate power scaling without loss of beam quality by a factor of three, when compared to previous results. 69 W of diffraction-limited laser output power at 1053 nm in a Nd:YLF lasers are demonstrated with slope efficiency of 65% and record optical-to-optical efficiency of 60%.