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Theoretical and experimental investigation of Rb-Ar excimer pumped alkali laser characteristics

Excimer Pumped Alkali Laser (XPAL) is a hopeful choice to solve Diode Pumped Alkali Laser (DPAL)’s disadvantages. Theoretical and experimental investigations of Rb-Ar XPAL were carried out in this paper. Time dependent rate equation model illustrated that extreme pump strength was needed to exceed threshold and to assure efficient cw running. 780nm lasing of four level Rb-Ar excimer was realized with a surrogate 15 ns pulsed optical parametric oscillator (OPO). Possible resonator configuration may increase pumping strength was proposed.