Open Access3kW liquid–cooled elastically-supported Nd:YAG multi-slab CW laser resonator
Author(s) -
Xing Fu,
Peilin Li,
Qiang Liu,
Mali Gong
Publication year - 2014
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.22.018421
Subject(s) - materials science , optics , slope efficiency , resonator , laser , optical cavity , thin disk , brewster's angle , multi mode optical fiber , fiber laser , optoelectronics , optical fiber , physics , brewster , stars , astronomy
A 3kW liquid-convection-cooled Nd:YAG CW laser resonator with a novel design is developed and demonstrated, in which the straight-through geometry is adopted that the oscillating laser propagates through multiple thin slabs and multiple cooling flow layers in Brewster angle. Using the elastically-supported Nd:YAG single-crystal thin slabs at different doping levels, a multimode laser output with the output power of 3006 W is obtained from the stable cavity at the pump power of 19960 W, corresponding to an optical-optical efficiency of 15.1%, and a slope efficiency of 21.2%.