Open AccessAn unusual pulse compression of stimulated Brillouin scattering in water
Author(s) -
Lei Zhang,
Jin-Zeng Li
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.054202
Subject(s) - brillouin scattering , pulse (music) , optics , materials science , pulse compression , compression (physics) , scattering , pulse duration , physics , laser , composite material , telecommunications , detector , radar , computer science
Pulse compression is an important property of stimulated Brillouin scattering (SBS), and the SBS pulse duration becomes smaller with the increase of pump energy. An unusual pulse compression was investigated of the stimulated Brillouin scattering in water, it was found that the SBS pulse duration becomes larger as the pump energy increases. The pulse duration of SBS alters differently with the change of pump energy in strong focusing and weak focusing. Numerical simulation of pump light transmission in water cell has been made to explain the unusual pulse compression phenomena. Different real gain lengths in strong and weak focusing make different SBS pulse compression.