Demonstration of a kilowatt average power, 1 J, green laser

被引：14

作者：

Chi, Han ^{[1
]}

Wang, Yong ^{[1
,2
]}

Davenport, Aaron ^{[1
]}

Menoni, Carmen S. ^{[1
,2
]}

Rocca, Jorge J. ^{[1
,2
,3
]}

机构：

[1] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

[2] XUV Lasers Inc, POB 273251, Ft Collins, CO 80523 USA

[3] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

来源：

OPTICS LETTERS | 2020年 / 45卷 / 24期

关键词：

RAY PULSE GENERATION; 2ND-HARMONIC GENERATION; REPETITION-RATE; TEMPERATURE; CRYSTAL; PLASMAS;

D O I：

10.1364/OL.412975

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A lambda = 515 nm laser generating joule-level pulses at 1 kHz repetition rate was demonstrated by frequency doubling 1.2 J, 2 ns temporally shaped square pulses from a cryogenically cooled Yb:YAG laser in an LBO crystal. A doubling efficiency of 78% resulted in 0.94 J second-harmonic pulses at 1 kHz. The unconverted light interacted with a second LBO crystal to generate > 100 mJ second-harmonic pulses to reach a total green average power of 1.04 kW. A conversion efficiency of 89% was achieved for 0.58 J green pulses at 1 kHz. These results open the possibility to pump high energy femtosecond lasers at kilohertz repetition rates. (C) 2020 Optical Society of America

引用

页码：6803 / 6806

页数：4

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