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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。
Constructed a set of xenon lamp pumping, large-caliber active reflector chip amplifier experimental device. The gain characteristics of an active mirror neodymium glass amplifier with Brewster angle incidence are experimentally investigated. Neodymium glass geometric dimensions of 890mm × 450mm × 50mm, doping concentration of 1.2% (mass fraction). Under the optimal delay, the small signal gain coefficient and energy storage efficiency under different voltages are measured. The charging voltage is 22kV, the xenon lamp discharge pulse width is 0.51ms, the energy storage efficiency is 1.94%, and the small signal gain coefficient is 0.0371cm-1. The effects of lateral amplification of spontaneous emission (ASE) and xenon lamp luminescence efficiency on gain characteristics were experimentally investigated.