Pulse-shape dependence of stimulated Brillouin scattering pulse compression to subphonon lifetime

L. I. U. Zhaohong, Yulei Wang, Yirui Wang, Sensen Li, Zhenxu Bai, Dianyang Lin, Weiming He, Zhiwei Lu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A new approach to sub-phonon lifetime pulse compression by stimulated Brillouin scattering (SBS) is presented. Triangular and step pulse pumps are both used as a pump source in a single-cell SBS compression setup. Compared with a Gaussian pump (shortest compressed pulse is the phonon lifetime with the highest energy conversion, approximately 60% under the same conditions), the compression ratio is significantly improved in the case of triangular and step pulse pumps, and there is some improvement in the energy conversion when a step pulse pump is used. A pulse as short as a quarter of a phonon lifetime is produced by a triangular pulse pump, with an energy conversion above 30%. The pump pulse shape is identified as the key parameter in achieving sub-phonon lifetime pulse compression. By using a step pulse shape, a 4.5 ns pump pulses with a 60mJ at 1064-nm are compressed down to 292 ps (below semi-phonon-lifetime) in 3M Fluorinert Electronic Liquid FC-770 with an energy conversion above 65%. This work presents a route to reliable generation of sub-semi-phonon-lifetime pulses by SBS compression.

LanguageEnglish
Pages5701-5710
Number of pages10
JournalOptics Express
Volume26
Issue number5
DOIs
Publication statusPublished - 5 Mar 2018

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pulse compression
life (durability)
pumps
pulses
scattering
energy conversion
compression ratio
routes

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Zhaohong, L. I. U. ; Wang, Yulei ; Wang, Yirui ; Li, Sensen ; Bai, Zhenxu ; Lin, Dianyang ; He, Weiming ; Lu, Zhiwei. / Pulse-shape dependence of stimulated Brillouin scattering pulse compression to subphonon lifetime. In: Optics Express. 2018 ; Vol. 26, No. 5. pp. 5701-5710.
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title = "Pulse-shape dependence of stimulated Brillouin scattering pulse compression to subphonon lifetime",
abstract = "A new approach to sub-phonon lifetime pulse compression by stimulated Brillouin scattering (SBS) is presented. Triangular and step pulse pumps are both used as a pump source in a single-cell SBS compression setup. Compared with a Gaussian pump (shortest compressed pulse is the phonon lifetime with the highest energy conversion, approximately 60{\%} under the same conditions), the compression ratio is significantly improved in the case of triangular and step pulse pumps, and there is some improvement in the energy conversion when a step pulse pump is used. A pulse as short as a quarter of a phonon lifetime is produced by a triangular pulse pump, with an energy conversion above 30{\%}. The pump pulse shape is identified as the key parameter in achieving sub-phonon lifetime pulse compression. By using a step pulse shape, a 4.5 ns pump pulses with a 60mJ at 1064-nm are compressed down to 292 ps (below semi-phonon-lifetime) in 3M Fluorinert Electronic Liquid FC-770 with an energy conversion above 65{\%}. This work presents a route to reliable generation of sub-semi-phonon-lifetime pulses by SBS compression.",
author = "Zhaohong, {L. I. U.} and Yulei Wang and Yirui Wang and Sensen Li and Zhenxu Bai and Dianyang Lin and Weiming He and Zhiwei Lu",
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Zhaohong, LIU, Wang, Y, Wang, Y, Li, S, Bai, Z, Lin, D, He, W & Lu, Z 2018, 'Pulse-shape dependence of stimulated Brillouin scattering pulse compression to subphonon lifetime', Optics Express, vol. 26, no. 5, pp. 5701-5710. https://doi.org/10.1364/OE.26.005701

Pulse-shape dependence of stimulated Brillouin scattering pulse compression to subphonon lifetime. / Zhaohong, L. I. U.; Wang, Yulei; Wang, Yirui; Li, Sensen; Bai, Zhenxu; Lin, Dianyang; He, Weiming; Lu, Zhiwei.

In: Optics Express, Vol. 26, No. 5, 05.03.2018, p. 5701-5710.

Research output: Contribution to journalArticleResearchpeer-review

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