Open AccessQuasi-two-level Yb:KYW laser with a volume Bragg grating
Author(s) -
Jonas Hellström,
Björn Jacobsson,
Valdas Pasiskevicius,
Fredrik Laurell
Publication year - 2007
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.15.013930
Subject(s) - materials science , optics , laser , fiber bragg grating , grating , optoelectronics , laser power scaling , distributed feedback laser , wavelength , physics
Using a volume Bragg grating as input coupler, we demonstrate an Yb:KYW laser with a very small quantum defect (1.6%) and an output power of 3.6 W. The laser was longitudinally diode-pumped at 982 nm and the laser wavelength was determined by the grating to 998 nm, with a laser bandwidth of 10 GHz (33 pm). Due to the low quantum defect, the laser should be readily scalable to 20 W or more without critical thermal effects.