Strongly enhanced negative dispersion from thermal lensing or other focusing effects in femtosecond laser cavities

被引：3

作者：

Paschotta, R ^{[1
]}

der Au, JA ^{[1
]}

Keller, U ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, ETH Honggerberg, HPT, Inst Quantum Elect, CH-8093 Zurich, Switzerland

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2000年 / 17卷 / 04期

关键词：

D O I：

10.1364/JOSAB.17.000646

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a new scheme for dispersion compensation in femtosecond laser cavities, exploiting the observation that the negative dispersion from a Brewster interface can be strongly enhanced by the focusing effect of a curved surface on a prism or of a thermal lens in the gain medium. Based on this scheme, a high-power Nd:glass laser generated femtosecond pulses without a prism pair. We present a detailed analytical, numerical, and experimental analysis of the discovered dispersion effects. Also, we anticipate the application of these effects for compensation of higher-order dispersion in a broad bandwidth, using a specially designed nonspherically curved mirror surface. (C) 2000 Optical Society of America [S0740-3224(00)01404-1] OCIS codes: 140.4050, 140.3410, 260.2030.

引用

页码：646 / 651

页数：6

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