Asymptotic approach to the truncated cosh-Gaussian beams

被引：9

作者：

Lü, B ^{[1
]}

Luo, SR ^{[1
]}

机构：

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

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2001年 / 33卷 / 01期

关键词：

asymptotic approach; cosh-Gaussian (ChG) beam; M-2-factor; truncation;

D O I：

10.1023/A:1007144807531

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 propagation behavior and M-2-factor of truncated cosh-Gaussian (ChG) beams are studied by using the asymptotic approach. Detailed numerical results are given to illustrate the dependence of M-2-factor on the beam decentered parameter beta, truncation fraction p and power fraction f. Our results are self-consistent and reduce to those of Pare and Belanger [Opt. Commun. 123, p. 679 (1996a); Proc. SPIE 2870, p. 104 (1996b)]. The advantage of the approach is shown, and the problems introduced by the hard-aperture diffraction and the approach used are discussed.

引用

页码：107 / 113

页数：7