Coherent and incoherent off-axis Hermite-Gaussian beam combinations

被引：41

作者：

Lü, B ^{[1
]}

Ma, H ^{[1
]}

机构：

[1] Sichuan Univ, Inst Laser Phys & Laser Technol, Chengdu 610064, Peoples R China

来源：

APPLIED OPTICS | 2000年 / 39卷 / 08期

关键词：

D O I：

10.1364/AO.39.001279

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A detailed study of the coherent and the incoherent combinations of two-dimensional off-axis Hermite-Gaussian beams with rectangular symmetry is made. The closed-form propagation formulas of the resulting beam are derived, and the resulting beam quality in terms of the M-2 factor and power in the bucket is discussed and compared for the coherent and the incoherent combinations. In addition, it is shown that the resulting astigmatic beam can be symmetrized in the sense of the second-moment definition of beam width. However, the symmetrizing transformation of the resulting astigmatic beams is incomplete, because there exist different irradiance profiles. (C) 2000 Optical Society of America.

引用

页码：1279 / 1289

页数：11

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