Efficient 1047 nm CW laser emission of Nd:YLF under direct pumping into the emitting level期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Efficient 1047 nm CW laser emission of Nd:YLF under direct pumping into the emitting level

Authors:	Yan-Fei Lü ,Xi-He Zhang,Xiao-Dong Yin

Affiliation:	^a School of Science, Changchun University of Science and Technology, Changchun 130022, China ^b Laboratory of Info-Integration Technology, Xi’an Institute of Applied Optics, Xi’an 710065, China ^c Jilin Junkun Optoelectronics Company Limited, Changchun 130012, China

Abstract:	We demonstrate a 1047 nm Nd:LiYF₄ (Nd:YLF) laser by directly pumping into the upper lasing level with a tunable Ti:Sapphire laser. The results obtained for direct upper laser level pumping at 863, 872 and 880 nm of Nd:YLF were compared with traditional 806 nm pump band excitation. Highly efficient 1047 nm continuous-wave (CW) laser emission under direct pumping at 880 nm in an 8 mm thick, 1.0 at.% Nd:YLF crystal is obtained. The slope efficiency is improved from 55.6% for traditional pumping at 806 nm to 76.3% for direct pumping at 880 nm.

Keywords:	All-solid-state High efficiency Direct pumping Nd:YLF crystal
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