Stimulated Brillouin scattering by a multi-mode pump with a large number of longitudinal modes

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We report that a multi-mode pulse with a large number of longitudinal modes shows enhanced stimulated Brillouin scattering (SBS) due to self-focusing, so the SBS reflectivity for the multi-mode pump can be higher than that for a single-mode pump case near the SBS threshold, even in the transient regime. We think that the self-focusing is generated by the high-intensity spikes of the multi-mode pulse created by mode beating, which are absent in a single-mode pulse. Optical breakdown and nonlinear effects generated by the intensity spikes, however, suppress SBS at high pump energies.
Publisher
KOREAN PHYSICAL SOC
Issue Date
2005-02
Language
English
Article Type
Article
Keywords

PHASE-CONJUGATION; PULSE-COMPRESSION; LASER; MIRROR; POWER; FLUOROCARBON; OPERATION; QUALITY

Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.46, pp.443 - 447

ISSN
0374-4884
URI
http://hdl.handle.net/10203/18535
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
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