GEOMETRICAL TRANSFORMATION OF LINEAR DIODE-LASER ARRAYS FOR LONGITUDINAL PUMPING OF SOLID-STATE LASERS

被引：66

作者：

LEGER, JR ^{[1
]}

GOLTSOS, WC ^{[1
]}

机构：

[1] MIT,LINCOLN LAB,LASER RADAR MEASUREMENTS GRP,LEXINGTON,MA 02173

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1992年 / 28卷 / 04期

关键词：

D O I：

10.1109/3.135232

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 200 stripe linear diode-laser array is geometrically transformed into a two-dimensional, symmetric virtual source with symmetric divergence to end pump a Nd: YAG laser. The geometrical transformation is performed by two planes of diffractive optical elements separated by a 2.6 cm gap. Discounting optical losses, a TEM00 mode slope efficiency of 56% is demonstrated. Methods of increasing the throughput efficiency of the diffractive elements (currently approximately 50% per element) are explored. A theoretical model for estimating the maximum useful pump array size in longitudinally pumped rod and fiber lasers shows that this pump geometry is close to optimum.

引用

页码：1088 / 1100

页数：13

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