TRANSIENT STATES ANALYSIS OF A PARTIALLY COHERENT LASER-BEAM PROPAGATING THROUGH A GAUSSIAN CAVITY

被引：15

作者：

BAGINI, V ^{[1
]}

MASCELLO, A ^{[1
]}

PALMA, C ^{[1
]}

PERRONE, MR ^{[1
]}

机构：

[1] UNIV LECCE,DIPARTIMENTO FIS,I-73100 LECCE,ITALY

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1995年 / 31卷 / 08期

关键词：

D O I：

10.1109/3.400414

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 transient states of a laser beam propagating through a plane-parallel cavity with a Gaussian graded reflectivity mirror are numerically and experimentally investigated in the far-field, i.e., in the region around the focal plane of a positive lens, where variations in the beam are enhanced. The evolution of significant parameters (quality factor M(2), spot-size and focusing distance), from which all the others can be deduced, is studied from transit to transit. It is found that the type of evolution in the first cavity round-trips depends strongly on the initial values of beam parameters at the first emission from the active medium. It is also found that the laser system used in the experiment does not reach equilibrium during the pulse time. A satisfactory accordance between experimental and numerical data has been found.

引用

页码：1572 / 1578

页数：7

共 14 条

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