Efficient, high repetition-rate femtosecond blue source using a compact Cr:LiSAF laser

被引：26

作者：

Agate, B ^{[1
]}

Kemp, AJ ^{[1
]}

Brown, CTA ^{[1
]}

Sibbett, W ^{[1
]}

机构：

[1] Univ St Andrews, JF Allen Phys Res Labs, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

OPTICS EXPRESS | 2002年 / 10卷 / 16期

关键词：

D O I：

10.1364/OE.10.000824

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a practical route to designing a portable femtosecond blue light source that is rugged, compact and battery-powered. An optical-optical second-harmonic generation (SHG) efficiency of 30% is reported using a diode-pumped, femtosecond Cr:LiSAF laser requiring only similar to1.2W of electrical drive. 12mW of blue average power is generated using a 3mm KNbO3 crystal in a simple, single-pass extracavity geometry. The corresponding electrical-blue efficiency of 1% is, to our knowledge, the highest reported efficiency of any femtosecond blue source. Despite conditions of large group velocity mismatch, we show that the temporally-broadened blue pulses remain well within the femtosecond regime, at similar to540fs. (C) 2002 Optical Society of America.

引用

页码：824 / 831

页数：8

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