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Proceedings Paper

PM double-clad fibers for high-power lasers and amplifiers
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Paper Abstract

Fibers for high-power laser and amplifier applications require large claddings with high numerical apertures for efficiently coupling pump energy. In addition, such fibers should have high rare-earth dopant concentrations in relatively large cores, with low numerical apertures, to reduce non-linearities. Furthermore, polarization maintaining double-clad fibers (PM-DCF) are needed for coherently combining the outputs of several lasers/amplifiers to achieve output powers in excess of 100 kW for military and industrial laser applications. In this paper, we report the progress made towards fabricating PM double-clad fibers, with a variety of fiber characteristics, to facilitate development and production of high-power lasers and amplifiers. In particular, a Panda-type PM-DCF with a 0.06 NA, 30 micron diameter, Yb-doped core is reported. We also discuss various criteria that are critical for designing these PM double clad fibers.

Paper Details

Date Published: 3 July 2003
PDF: 10 pages
Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); doi: 10.1117/12.501679
Show Author Affiliations
Kanishka Tankala, Nufern (United States)
Adrian Carter, Nufern (United States)
David P. Machewirth, Nufern (United States)
Julia Farroni, Nufern (United States)
Jaroslaw Abramczyk, Nufern (United States)
Upendra H. Manyam, Nufern (United States)

Published in SPIE Proceedings Vol. 4974:
Advances in Fiber Lasers
L. N. Durvasula, Editor(s)

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