论文部分内容阅读
从速率方程出发,采用在直流抽运上叠加脉冲抽运的方式,建立激光二极管(LD)抽运的增益开关型Nd∶YVO4微片激光器的数学模型,并给出不同抽运条件下输出脉冲的时间特性。数值研究结果表明,当直流抽运速率、脉冲抽运速率和抽运脉宽的变化量在10%以内时,输出脉宽变化不大,而脉冲个数变化较大且与抽运参数呈非线性单调递增关系。利用建立的实验装置,测量了在不同激光二极管驱动电流和调制脉宽时输出脉冲的时间特性,发现驱动电流的增幅在10%以内时,输出脉宽变化小于5%,但输出脉冲个数增加较为明显,且实验结果与数值模拟结果相符。
Based on the rate equation, a mathematical model of gain switching Nd: YVO4 microtiter laser with laser diode (LD) pumping is established by superimposing pulse pumping on the DC pump. The output pulse under different pumping conditions The time characteristics. Numerical results show that when the variation of DC pumping rate, pulse pumping rate and pumping pulse width is less than 10%, the output pulse width does not change much, while the pulse number changes greatly and the pumping parameters are not Linear monotonically increasing relationship. The experimental setup was used to measure the time characteristics of the output pulses with different laser diode driving currents and pulse width modulations. It was found that when the driving current amplitude is within 10%, the output pulse width changes less than 5%, but the number of output pulses increases It is obvious that the experimental results are consistent with the numerical simulation results.