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Proceedings Paper

Experimental investigations on transverse spatial profile of beam in an SBS generator
Author(s): Huaping Gong; Yongxing Jin; Dianyang Lin
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Paper Abstract

Focusing Q-switched laser pulses into FC-72 medium, the transverse profiles and spatial evolution of beam in stimulated Brillouin scattering (SBS) are investigated experimentally by CCD camera and digital image processing technology, and the rules of spot size versus pump energy are obtained. The results show that the transverse profiles of backward SBS spots with different pump energies are Gaussian or quasi-Gaussian profiles when pump beam is Gaussian. And the spatial profiles of SBS spots change from quasi-Gaussian to Gaussian when the incident energy increases from the threshold to several times the threshold. At the same time, the size of SBS spot decreases with the increasing pump energy on the whole.

Paper Details

Date Published: 2 December 2009
PDF: 6 pages
Proc. SPIE 7631, Optoelectronic Materials and Devices IV, 76310X (2 December 2009); doi: 10.1117/12.852691
Show Author Affiliations
Huaping Gong, China Jiliang Univ. (China)
Yongxing Jin, China Jiliang Univ. (China)
Dianyang Lin, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 7631:
Optoelectronic Materials and Devices IV
Jian-Jun He; Guang-Hua Duan; Fumio Koyama; Ming C. Wu, Editor(s)

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