The spectra detected from the edge of the sample shows a gainnarrowing and a clear threshold when increasing the pump intensity.
当泵浦光强增强时,从样品边缘发射的光谱发生增益窄化并具有明显的阈值特性。
2
A new spectrum shaping method, based on electro-optic modulation, to alleviate gainnarrowing in chirped pulse amplification (CPA) system, is described and numerically simulated.
To meet the requirements of miniaturization, high gain and wideband of UHF antenna for aircraft SAR, the gain loss produced by narrowing back cavity of short back radiation antenna is analyzed.