EFFICIENT ND-YAG LASER END-PUMPED BY A 1 CM APERTURE LASER-DIODE BAR WITH A GRIN LENS ARRAY COUPLING

被引：19
|
作者：
YAMAGUCHI, S
IMAI, H
机构：
[1] Electronics Research Laboratories, Nippon Steel Corporation, Sagamihara
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1992年 / 28卷 / 04期
关键词：
D O I：
10.1109/3.135233
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A 10 W laser-diode bar, a multistripe monolithic laser-diode array, has been used to end-pump Nd: YAG. Twenty beams emitted from 20 stripes, spaced 500-mu-m apart, of a 1 cm linear diode array were collimated by a 1 cm wide lens array consisting of 20 GRIN (graded-index) lenses with a width of 500-mu-m to pump the Nd: YAG facet. The maximum Nd: YAG CW output power at 1064 nm of 3.24 W CW was obtained at 8.6 W incident pump power with a total electrical-to-optical conversion efficiency of 10.1%, a threshold of 0.6 W, a maximum slope efficiency of 45%, and a single-lobed spatial mode.
引用
收藏
页码：1101 / 1105
页数：5
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