Research on the enhancement of power-load of two-cell SBS system by choosing different media or mixture medium

Abstract

In order to enhance the power-load of two-cell stimulated Brillouin scattering (SBS) system, methods of using different media and mixed medium are proposed. In theory, the amplification function of two-cell system of different medium with close vicinity in the Brillouin frequency shift (BFS) is analyzed. Also the variation of BFS of the mixed medium with the mixing ratio is analyzed. In the two-cell SBS system pumped by Q-switched Nd:YAG laser, the SBS system performance characteristics are investigated with different media and mixed medium. The experimental results indicate that the Stokes can be sufficiently amplified by choosing different medium with close vicinity in the BFS; the powerload performance is enhanced as well as the maximum amplification efficiency the Stokes by choosing mixed medium.

Trends in stimulated Brillouin scattering and optical phase conjugation

“…Thus, the pre-pulse injection is introduced to preserve the SBS waveform and the effects of the pre-pulse injection are investigated for cross-type amplifier system with the SBS-PCMs. SBS has a broad range of applications especially SBS-PCMs have been discussed recently (Yoshida et al, 2007;Meister et al, 2007;Kong et al, 2007Kong et al, , 2006Kong et al, , 2005bKong et al, , 2005aKappe et al, 2007;Hasi et al, 2007;. SBS-PCMs give many advantages such as the natural compensation for the distorted beams, the easiness of the optical alignments, and so forth.…”

Characteristics of amplified spectrum of a weak frequency-detuned signal in a Brillouin amplifier

“…In recent years, stimulated Brillouin scattering (SBS) has received considerable attention because it has a broad range of applications (Kong et al, 2007(Kong et al, , 2009Ostermeyer et al, 2008;Shi et al, 2008;Wang et al, 2007;Hasi et al, 2007Hasi et al, , 2008Meister et al, 2007;Yoshida et al, 2007). Especially, the Brillouin amplifier can amplify a weak signal with high gain (Glick & Sternklar, 1995;Bel'dyugin et al, 2005).…”

“…To achieve highgain amplification or enhance power load, Brillouin amplification in different media has been presented. Hasi et al (2007) reported that the power load of the generator cell was enhanced by using the amplifier medium with small absorption rate, and the generator medium with high optical breakdown threshold. According to the characteristic that the Brillouin shift of CS 2 is near to that of water, Gao et al (2008a) reported Brillouin amplification of weak Stokes signals from water, obtaining the signal gain of 10 8 for the signal energy of 1pJ by using CS 2 as the amplifier.…”

Investigation of optical limiting based on the combination of stimulated Brillouin scattering and carbon nanotube/HT-270 suspension

“…While most research regarding stimulated Brillouin scattering (SBS) has been focused on the characteristics of backscattered light for phase conjugation and laser pulse compression (Kong et al, 2007;Ostermeyer et al, 2008;Yoshida et al, 2007;Wang et al, 2007;Hasi et al, 2007), there are few studies as to the characteristics of transmitted light. When the pump intensity exceeds the SBS threshold, a strong SBS process takes place through the SBS medium, leading to a quick energy transfer from pump to the Stokes light, and accordingly an optical limiting characteristic in the transmitted light (Lu et al, 2006Hasi et al, 2008aHasi et al, , 2008b.…”