Time-resolved spatial structure of TEA CO2 laser pulses

被引：6

作者：

Martínez, C ^{[1
]}

Serna, J ^{[1
]}

Encinas-Sanz, F ^{[1
]}

Martínez-Herrero, R ^{[1
]}

Mejías, PM ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Opt, E-28040 Madrid, Spain

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2000年 / 32卷 / 01期

关键词：

bidimensional characterization; electro-optical; Hermite-Gauss modes; laser pulse; TEA CO2 laser;

D O I：

10.1023/A:1007033113828

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：

The evolution of the intensity profile of TEA CO2 laser pulses along the pulse length is investigated both analytically and experimentally. A simple scalar model of the pulse amplitude is introduced, which gives the loaded-cavity modes as a linear combination of bidimensional Hermite-Gauss functions. According to this model a number of equations are derived which link the time-varying spatial structure of the pulse to its time-resolved second-order intensity moments, namely, the beam width and the M-2 parameter.

引用

页码：17 / 30

页数：14

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