标题：Growth, properties and Raman shift laser in tungstate crystals
作者：Wang JY;Zhang HJ;Wang ZP;Ge WW;Zhang JX;Jiang MH
作者机构：[Wang, J] State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China;[ Zhang, H] State Key Laboratory of Crystal Materials, 更多
会议名称：3rd Asian Conference on Crystal Growth and Crystal Technology (CGCT-3)
会议日期：OCT 16-19, 2005
来源：Journal of Crystal Growth
关键词：thermal property;growth;single crystal;BaWO4;KRE(WO4)(2) (RE = Gd;Y and Lu);SRS laser performance;SPECTRAL PROPERTIES
摘要：Tungstate crystals including potassium rare earth metal double tungstates KRE(WO4)(2) and barium tungstate BaWO4 are reliable and efficient Raman active crystals. In this paper, we report on the growth, physical properties and laser performance of these crystals. The pump threshold of Nd: KLu(WO4)(2) pumped by a laser diode (LD) is 24 mW, and up to 188.3 mW of cw output at 1.073 mu m is obtained with 746 mW pump power. The optical conversion efficiency is 25.3%, and the slope efficiency of the laser is 26.1%. The cw output for Yb:KLU(WO4)(2) at 1.03 mu m is 3.4 W pumped by an LD. Below 0.25 mJ pump energy, we obtained 0.07 mJ Raman laser output in the. yellow (the first Stokes line at 559.7 nm) and the orange (the second Stokes line at 590.3 nm) with a 30-mm-long C-axis-oriented BaWO4 crystal. The conversion efficiency of the Raman laser is about 28%. (c) 2006 Elsevier B.V. All rights reserved.