High power 1.9 μm Tm3+ -silica fibre laser pumped at 1.09 μm by a Yb3+ -silica fibre laser

被引：64
作者：
Tsang, YH [1 ]
Coleman, DJ [1 ]
King, TA [1 ]
机构：
[1] Univ Manchester, Dept Phys & Astron, Laser Photon Res Grp, Manchester M13 9PL, Lancs, England
来源：
OPTICS COMMUNICATIONS | 2004年 / 231卷 / 1-6期
基金：
英国工程与自然科学研究理事会;
关键词：
fibre laser; Yb; ytterbium; Tm; thulium; high power fibre; wavelength conversion;
D O I：
10.1016/j.optcom.2003.11.072
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Wavelength conversion of the Yb3+-silica fibre laser operating near 1.09 mum has been demonstrated by acting as a direct pump source for a small scale Tm3+-silica fibre laser to provide an output at 1.9 mum. The characterisation of the Tm3+-silica fibre laser is described; it operated with a threshold of 30+/-20 mW, a slope efficiency of 27.2+/-0.4% with respect to the launched pump power and a maximum output power of 1.1 W. There is evidence of saturation in the output power due to excited state absorption which suggests that the maximum achievable output power of this core-pumped Tm3+-doped fibre laser is approximately 2 W for 1.09 mum pumping. (C) 2003 Elsevier B.V. All rights reserved.
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收藏
页码：357 / 364
页数：8
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