摘要
构建了一套氙灯抽运,大口径有源反射镜片状放大器实验装置。实验研究了布儒斯特角入射的有源反射镜钕玻璃放大器的增益特性。钕玻璃几何尺寸为890mm×450mm×50mm,掺杂浓度为1.2%(质量分数)。最佳延时下,测得不同电压下的小信号增益系数和储能效率。充电电压为22kV,氙灯放电脉宽为0.51ms时,储能效率为1.94%,小信号增益系数为0.0371cm-1。实验研究了横向放大自发辐射(ASE)和氙灯发光效率对增益特性的影响。
The structure of large aperture active mirror slab amplifier is presented, which is pumped by Xe-lamps. The application of active mirror in Nd.. glass laser amplifier is explored. The size of Nd：glass is 890 mm×450 min×50 mm. Doping density is 1.2 % of mass fraction. The small signal gain coefficient and energy storage efficiency of different voltages are measured at the best delay time. The energy storage efficiency is 1.94 % and the small signal gain coefficient is 0. 0371 cm 1 when the charging voltage is 22 kV and the Xe-lamp＇s discharging pulse width is 0.51 ms. Experiments are designed to research the effect of lateral amplified spontaneous emission （ASE） and luminous efficiency of Xe-lamp on the small signal gain coefficient.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2013年第4期38-42,共5页
Chinese Journal of Lasers
