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Proceedings Paper

A novel side coupling technique for rugged all-fiber lasers and amplifiers
Author(s): Yoav Sintov; Yaakov Glick; Tomer Koplowitch; Ori Katz; Yehuda Nafcha; Yariv Shamir; Raphael Lavi
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Paper Abstract

A novel side coupling technique between two multimode high NA fibers is described. The technique is used to efficiently pump fiber lasers and amplifiers by low brightness fiber coupled pump diodes. With the presented technique, identical multimode fibers with 0.46NA and core diameters extending from 125&mgr;m to 400&mgr;m, can be coupled together, and provide pump coupling efficiency of >90%. Direct coupling to a rare-earth doped fiber is possible. In this configuration one fiber is used as the pump guiding fiber and the second fiber is the rare-earth doped double clad fiber. By utilizing the presented pump coupling technique, highly efficient, rugged and low cost short pulse and CW all-fiber lasers were implemented, with average output power extending to 300W and peak power of 600kW.

Paper Details

Date Published: 10 May 2007
PDF: 9 pages
Proc. SPIE 6552, Laser Source Technology for Defense and Security III, 65520R (10 May 2007); doi: 10.1117/12.721420
Show Author Affiliations
Yoav Sintov, Soreq Nuclear Research Ctr. (Israel)
Yaakov Glick, Soreq Nuclear Research Ctr. (Israel)
Tomer Koplowitch, Soreq Nuclear Research Ctr. (Israel)
Ori Katz, Soreq Nuclear Research Ctr. (Israel)
Yehuda Nafcha, Soreq Nuclear Research Ctr. (Israel)
Yariv Shamir, Soreq Nuclear Research Ctr. (Israel)
Raphael Lavi, Soreq Nuclear Research Ctr. (Israel)

Published in SPIE Proceedings Vol. 6552:
Laser Source Technology for Defense and Security III
Gary L. Wood; Mark A. Dubinskii, Editor(s)

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