Open AccessContinuous wave and mode-locked Yb^3+:Y_2O_3 ceramic thin disk laser
Author(s) -
Masaki Tokurakawa,
Akira Shirakawa,
Kenichi Ueda,
Hideki Yagi,
Takahiko Yanagitani,
Alexander Kaminskii,
Kolja Beil,
Christian Kränkel,
G. Huber
Publication year - 2012
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.20.010847
Subject(s) - materials science , laser , optics , thin disk , ceramic , slope efficiency , continuous wave , thin film , mode locking , laser power scaling , laser pumping , optoelectronics , solid state laser , ytterbium , fiber laser , physics , stars , astronomy , composite material , nanotechnology
CW and mode-locked laser operation based on an Yb3+:Y2O3 ceramic thin disk is reported. In CW laser operation, an output power of 70 W with an optical-to-optical efficiency of 57.4% was achieved. A higher slope efficiency of 70% was also obtained with a 50-W pump laser diode with more suitable emission characteristics. In mode-locked laser operation, pulses as short as 547 fs with an average power of 7.4 W were obtained. To our knowledge, this is the first demonstration of a high power CW and mode-locked laser operation based on Yb3+:Y2O3 ceramic thin disks.