基于SBS光限幅和金属酞菁光限幅相结合的复合型光限幅器的研究

摘要

In order to improve the optical limiting performance based on stimulated Brillouin scattering（SBS）,an optical limiter based on the combination of SBS and metal-phthalocyanine complexes（MPCs） is proposed in this paper.The output energy of the combination optical limiting designed based on SBS followed by MPCs shows flatter characteristic.The dependence of the output energy of optical limiting based on this combination approach on the input light intensity is numerically simulated,and validated in a continuum Nd：YAG seed-injected laser system.The theoretical and the experimental results indicate that the output energy based on this approach has a flatter characheristie than based on a single SBS.%为了使受激布里渊散射（SBS）光限幅器的输出能量更＂平＂,提出了一种基于SBS光限幅和金属酞菁光限幅相结合的复合型光限幅器的方案,即SBS光限幅后边放置金属酞菁光限幅,在两种光限幅器的共同限幅作用下,使复合型光限幅器的输出光能量更＂平＂.数值模拟了该复合型光限幅器的输出光能量随入射光强度的变化曲线,并在Countinuum＇s Nd：YAG种子注入式激光器中进行了实验验证.理论和实验结果均表明,复合型光限幅器的输出光能量比单独SBS光限幅器更＂平＂.