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Proceedings Paper

High-power amplification of a pulsed fiber laser
Author(s): Robert Larose; Pierre Mathieu
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Paper Abstract

Pulsed fiber laser sources are attractive in terms of simpler delivery to a scanning head, small rugged all-fiber design and good power efficiency. For practical systems both high repetition rate and high energy are required along with single spatial mode output. Increasing in practice the pump power launched in a singlemode fiber is not simple and even then, serious pulse sharpening occurs in high gain fiber amplifier. In order to increase the energy with minimal pulse shaping, we have investigate the use of slightly multimode fibers seeded by a singlemode laser source. We achieved more than 40 (mu) J at 10 kHz for a 10 ns pulse with a good spatial mode and small pulse sharpening. Being able to shape the input pulse, we demonstrate that pre- compensation is possible to maintain uniform peak power over the output pulse.

Paper Details

Date Published: 8 October 1998
PDF: 7 pages
Proc. SPIE 3415, Laser Diodes and Applications III, (8 October 1998); doi: 10.1117/12.326619
Show Author Affiliations
Robert Larose, Institut National d'Optique (Canada)
Pierre Mathieu, Defence Research Establishment Valcartier (Canada)

Published in SPIE Proceedings Vol. 3415:
Laser Diodes and Applications III
Pierre Galarneau, Editor(s)

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