论文部分内容阅读
用一种简单近似的数值模拟方法，模拟了光学速调管的自发辐射，分析和讨论了电子束能散对光学速调管自发辐射谱非线性展宽效应；模拟结果表明，当能散度大于０．００１时，三次谐波辐射谱的调制深度将接近于零；因此为了得到更大的调制因子和更强增益，以保证三次相干谐波的产生；光学速调管必须在更低的电子束能散度下工作．
The spontaneous emission of an optical klystron was modeled by a simple numerical simulation method. The nonlinear broadening effect of the electron beam energy dispersion on the spontaneous emission spectrum of an optical klystron was analyzed and discussed. The simulation results show that when the energy divergence is greater than 0.001, the modulation depth of the third harmonic radiation spectrum will be close to zero; therefore, in order to obtain a larger modulation factor and stronger gain to ensure the generation of the third harmonic, the klystron must be controlled at a lower electron Beam divergence work.