In this work, thermally induced diffraction loss and energy transfer upconversion (ETU) are considered for optimization of an ultrashort-pulsed laser amplifier. In this regard, pump spot size and signal to pump mode ratio are optimized in order to maximize the signal output energy. Toward this, the Frantz-Nodvik equation of ultrashort-pulsed laser amplifier with thermal induced diffraction loss and ETU theories were combined. Results show the power of this two-theory combination for optimization tasks of pico-second pulsed amplifiers. Optimized values of m and for output energy of 2.3 j are reported here. This output energy is twice the values reported without parameter optimization.

在这项工作中，热致衍射损耗和能量转移上转换 (ETU) 被考虑用于优化超短脉冲激光放大器。在这方面，优化泵浦光斑尺寸和信号与泵浦模式比以最大化信号输出能量。为此，将具有热致衍射损耗的超短脉冲激光放大器的 Frantz-Nodvik 方程与 ETU 理论相结合。结果显示了这种两种理论组合对皮秒脉冲放大器优化任务的强大作用。m 的优化值和2.3 的输出能量j 在这里报告。该输出能量是未经参数优化报告的值的两倍。