Acta Optica Sinica, Volume. 5, Issue 11, 975(1985)
High-efficiency frequency doubling usinga large-aperture KDP crystal
Usinga 3-cm-thick type II KDP crystal at input intensity of 0.27GW/cm2, an overall doubling energy conversion efficiency up to 61.5% has been achieved in our experiments. The 1.06μm laser beam has an aperture of 42mm and a divergence of ~0.5m rad. The temporal distribution of the intensity is nearly Gaussian. Experimental results are in agreement with theoretical calculation.
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CAI XIJIE, SHU MEIDONG, QIN WENHUA, DAI MEILAN. High-efficiency frequency doubling usinga large-aperture KDP crystal[J]. Acta Optica Sinica, 1985, 5(11): 975