High power 938nm cladding pumped fiber laser

被引:17
作者
Dawson, JW [1 ]
Drobshoff, A [1 ]
Liao, Z [1 ]
Beach, RJ [1 ]
Pennington, DM [1 ]
Payne, SA [1 ]
Taylor, L [1 ]
Hackenberg, W [1 ]
Bonaccini, D [1 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
来源
ADVANCES IN FIBER LASERS | 2003年 / 4974卷
关键词
D O I
10.1117/12.478270
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have developed a Nd:doped cladding pumped fiber amplifier, which operates at 938nm with greater than 2W of output power. The core co-dopants were specifically chosen to enhance emission at 938nm. The fiber was liquid nitrogen cooled in order to achieve four-level laser operation on a laser transition that is normally three level at room temperature, thus permitting efficient cladding pumping of the amplifier. Wavelength selective attenuation was induced by bending the fiber around a mandrel, which permitted near complete suppression of amplified spontaneous en-fission at 1088nm. We are presently seeking to scale the output of this laser to 10W. We will discuss the fiber and laser design issues involved in scaling the laser to the 10W power level and present our most recent results.
引用
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页码:75 / 82
页数:8
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