OPTIMIZATION OF LINE-FOCUSING GEOMETRY FOR EFFICIENT NONLINEAR FREQUENCY-CONVERSION FROM COPPER-VAPOR LASERS

被引：37

作者：

COUTTS, DW ^{[1
]}

机构：

[1] MACQUARIE UNIV,CTR LASERS & APPLICAT,SYDNEY,NSW 2109,AUSTRALIA

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1995年 / 31卷 / 12期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1109/3.477748

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：

Detailed parametric investigations of line foci for efficient nonlinear frequency conversion of copper-vapor lasers are presented, For a single medium-scale copper-vapor laser (nominally 20 W), the optimum focal geometry for efficient second-harmonic and sum-frequency generation in BBO is to focus a 3,75-mm-diameter beam into the crystal with an f = 60 mm cylindrical lens. Using such a focal geometry, UN powers of up to 1.75 W (SHG of the green), 1.2 W (SAG yellow), and 1.5 W (SFG) have been produced with peak instantaneous conversion efficiency of up to 48%. Conversion efficiencies are most sensitive to the F-number of the cylindrical focusing, with the optimum F-number being approximately 16, and are relatively insensitive to the width of the focused beam.

引用

页码：2208 / 2214

页数：7

共 18 条

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