Yirui Wang

Pulse temporal compression by two-stage stimulated Brillouin scattering and laser-induced breakdown

A laser pulse temporal compression technique combining stimulated Brillouin scattering (SBS) and laser-induced breakdown (LIB) is proposed in which the leading edge of the laser pulse is compressed using SBS, and the low intensity trailing edge of the laser pulse is truncated by LIB. The feasibility of the proposed scheme is demonstrated by experiments in which a pulse duration of 8 ns is compressed to 170 ps. Higher compression ratios and higher efficiency are expected under optimal experimental conditions.

A promotion of stability for temporal compression based on SBS in an interferometric scheme

Abstract An approach that introducing a standing wave into focal area to stabilize the output energy and duration of stimulated Brillouin scattering (SBS) compression is presented. An interferometric scheme filled with FC-770 is used to improve the stability of both output energy and duration two times compared with an equivalent conventional SBS compressor. Moreover, the interferometric scheme shows a promotion for the performance of SBS compression.

A 97-ps laser-pulse generation by two-stage stimulated Brillouin and Raman scattering

We demonstrate a pulse temporal compression technique based on a combination of Stimulated Brillouin scattering and subsequent Stimulated Raman scattering. A 97-ps pulse compressed from an 8-ns Q-switched Nd:YAG pulse laser is obtained.

Fluctuation initiation of Stokes signal and its effect on stimulated Brillouin scattering pulse compression

In this paper, a theoretical model is developed to demonstrate that fluctuations in the Stokes signal and occurrence position contribute to the final compression ratio in stimulated Brillouin scattering (SBS). This theoretical analysis can be applied to the investigation of the temporal characteristics of SBS pulse compression. This model agrees well with the experimental results in a two-stage SBS compressor.