大信号布里渊增强四波混频理论研究
Theoretical study on Brillouin-enhanced four-wave mixing with large incident signals
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摘要: 针对高功率激光相位共轭装置的应用需求，阐述了布里渊增强四波混频（BEFWM）在这一领域的应用潜力，并就该大信号强相互作用条件下BEFWM的作用机理及输出特征进行了系统的理论研究，揭示了BEFWM瞬态响应速度、共轭光波形保真度及稳定性、能量转换效率均随注入信号光的增强而提高的作用特点，为该技术在中高强度激光相位共轭系统中的实际应用提供了理论依据。Abstract: Based on the application demands of high-power laser phase-conjugate systems, the potential of Brillouin-enhanced four-wave mixing(BEFWM) applying in this field is represented. Correspondingly, physical mechanism and output characteristics of BEFWM with large incident signals are studied specially. It is demonstrated that BEFWM’s performances, such as response speed, pulse-shape fidelity and stability, and energy transform efficiency will increase with increasing intensity of the signals.
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