Theoretical investigation on the threshold value of stimulated Brillouin scattering in terms of laser intensity |
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| Authors: | J. Shi X. Chen M. Ouyang J. Liu D. Liu |
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| Affiliation: | (1) Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing, 100875, China;(2) Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hang Kong University, Nanchang, 330063, China |
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| Abstract: | The threshold value of stimulated Brillouin scattering (SBS) was investigated theoretically basing on a new concept of real gain length (RGL). It shows that for ideal steady-state SBS or ideal transient SBS, the threshold values are both constants and the later is five orders of magnitude larger than the former. Under general conditions, whether steady-state SBS or transient SBS will occur is determined by RGL. The SBS occurred in a long material may not be steady-state SBS. |
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| Keywords: | KeywordHeading" >PACS 42.65.Es 78.35.+c 78.45.+h |
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