Four-Sided Symmetrical Transversely Pumped Model for Diode-Pumped Rare Gas Lasers

Diode-pumped rare gas lasers (DPRGLs) have attracted significant attention as potential high-power laser sources. This paper proposes a four-sided transverse pumping scheme to address the energy concentration degree limitations in existing side-pumped DPRGL configurations while reducing dependence on high-power narrow-linewidth pump sources. A two-dimensional model was developed and validated through comparison between simulation results and experimental data. This study systematically investigated several key factors influencing output distribution through numerical simulations. The results demonstrate that the four-sided pumping approach provides an effective pathway for developing high-power DPRGL systems.