Open AccessThermal suppression of high-repetition rate SBS pulse compression in liquid media
Author(s) -
Hongli Wang,
Seongwoo Cha,
Hong Kong,
Yulei Wang,
Zhiwei Lv
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.469481
Subject(s) - optics , materials science , brillouin scattering , phase conjugation , pulse compression , thermal , lens (geology) , laser , physics , telecommunications , radar , meteorology , computer science
Thermal problems of high-repetition-rate stimulated Brillouin scattering (SBS) pulse compression in liquid media are theoretically and experimentally analyzed in detail. A wedge lens with less coma-aberration was designed using the ray tracing method and the thermally induced beam-pattern distortion was compensated by inhibiting thermal convection. The heat transfer form and fluid state were quantitatively analyzed for different SBS liquid media. For a 74-W pump power, 3-kHz pulse-compressed phase-conjugation mirror with an energy efficiency of 36.2% is achieved. A potential optimization method of continuously adjusting SBS output characteristics using a mixed medium is proposed and theoretically demonstrated, to improve energy efficiency.