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Proceedings Paper

Effective suppression of stimulated Raman scattering in high power fiber amplifiers using double-pass scheme
Author(s): Po-Yen Lai; Chun-Lin Chang; Sheng-Lung Huang; Shih-Hung Chen
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Paper Abstract

High power fiber laser amplifier cascade can be simplified using double-pass scheme due to improvement of overall efficiency, especially for amplifiers with small input seed or high stored energy. The yield of stimulated Raman scattering (SRS) in the double-pass scheme is comparable to the level in amplifiers using counter-directional-pumped single-pass scheme if the pumping configuration is appropriate, even though the interaction length becomes twice for double pass scheme. In the study, insertions of Raman strippers along the active fiber with double-pass scheme is proved to be another choice to effectively suppress SRS besides the utilization of photonic band-gap fibers.

Paper Details

Date Published: 12 March 2014
PDF: 7 pages
Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89612T (12 March 2014); doi: 10.1117/12.2039358
Show Author Affiliations
Po-Yen Lai, National Central Univ. (Taiwan)
Chun-Lin Chang, National Taiwan Univ. (Taiwan)
Sheng-Lung Huang, National Taiwan Univ. (Taiwan)
Shih-Hung Chen, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8961:
Fiber Lasers XI: Technology, Systems, and Applications
Siddharth Ramachandran, Editor(s)

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