Conceptual design of kW-class fiber-embedded disk and tube lasers
Ueda, K.
Sekiguchi, H.
Matsuoka, Y.
Miyajima, H.
Kan, H.
Inst. of Laser Sci., Univ. of Electro-Commun., Chofu;
This paper appears in: Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Publication Date: 1999
Volume: 2,
On page(s): 217-218 vol.2
Meeting Date: 08/30/1999 - 09/03/1999
Location: Seoul, South Korea
ISBN: 0-7803-5661-6
References Cited: 3
INSPEC Accession Number: 6529666
Digital Object Identifier: 10.1109/CLEOPR.1999.811381
Current Version Published: 2002-08-06
Abstract
Double-clad fiber lasers generate high power performance around
several ten watt level CW output. The high brightness compression of
about 700 larger than the pumping power was also demonstrated under the
high slope efficiency of 73% slope efficiency. The broadband emission
caused by the stimulated Raman effect due to the high intensity inside
the core propagated in a manner of confined optical propagation. These
results showed the great potential of fiber lasers for industrial
applications. However, the double clad fiber laser has a limitation
about the maximum output because of the finite input area of the first
clad. The output of double clad fiber lasers is determined simply by the
active volume. We discuss how to expand the potential of fiber lasers to
the kW level. We are developing fiber-embedded disk and tube lasers. The
pumping scheme of such a type of fiber lasers is side-pumping by LD
arrays
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