Acta Optica Sinica, Volume. 24, Issue 4, 491(2004)
High Power Partially End-Pumped Slab Laser with Hybrid Resonator
In laser diode-pumped solid-state lasers, the thermal induced distortion in laser crystal limits the scalability of high power output with high beam quality. Partially end-pumped slab laser with a stable-unstable hybrid resonator is an effective way to solve this problem. 110 W output with nearly diffractive-limit is obtained using Nd∶YVO4 as the gain media and a cavity less than 100 mm. The beam propagation factor M2 are 1.3 and 1.5 in the unstable and stable directions respectively at this power level. Spatial filting to cut the side lobes casued by hard-edge difrraction of output resonator mirror is also demonstrated. The typical propagation factors M2 are 1.09 and 1.2 after a spatial filter at 50 W operation.
Get Citation
Copy Citation Text
[in Chinese], [in Chinese], [in Chinese], [in Chinese]. High Power Partially End-Pumped Slab Laser with Hybrid Resonator[J]. Acta Optica Sinica, 2004, 24(4): 491