TRANSIENT ANALYSIS OF DEGENERATE 4-WAVE-MIXING WITH ORTHOGONALLY POLARIZED PUMP BEAMS IN A SATURABLE ND-YAG AMPLIFIER

被引：37

作者：

BRIGNON, A

HUIGNARD, JP

机构：

[1] Laboratoire Central de Recherches, Thomson-CSF

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1994年 / 30卷 / 09期

关键词：

D O I：

10.1109/3.309884

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Degenerate four-wave mixing with orthogonally polarized pump beams at lambda = 1.06 mum in the saturable gain of a flash-lamp-pumped Nd:YAG amplifier is investigated, both experimentally and theoretically, using pulses of duration much less than the population relaxation time. We introduce a new set of coupled-wave equations in this short pulse regime that includes the effect of the four interacting waves and the laser gain experienced by all the beams. The dependence of the efficiency of the process on the small-intensity-gain-length product, beam ratios, and fluences is analyzed. A reflectivity of a weak probe beam of 25 percent and a transmission-gain-grating diffraction efficiency of 32 percent are achieved. Finally, the temporal shape of the conjugate signal is studied for various gain-saturation regimes.

引用

页码：2203 / 2210

页数：8