Calculation of mode contents of high-power CO2 laser beam according to the changes of transverse intensity distribution

被引：6

作者：

Wang, ZY ^{[1
]}

Chen, T ^{[1
]}

He, P ^{[1
]}

Zuo, TC ^{[1
]}

机构：

[1] Beijing Polytech Univ, Natl Ctr Laser Technol, Beijing 100022, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2000年 / 175卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

high-power CO2 laser; blending-mode laser beam; transverse intensity distribution; beam quality;

D O I：

10.1016/S0030-4018(99)00771-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for calculation the mode contents of high-power CO2 blending-mode laser beam is presented. The basic idea is based on the changing rule of transverse intensity distribution of blending-mode laser beam. Based on two arbitrary measured transverse intensity distributions, the beam's mode contents and phase shifts of blending-mode laser beams are calculated by means of the least squares method and iterative process. Moreover, through the calculation results, any transverse intensity distribution for blending-mode laser beam is simulated and beam quality is also calculated readily. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：215 / 220

页数：6

共 14 条

[1] CHARACTERIZATION OF THE TRANSVERSE-MODES IN A LASER-BEAM - ANALYSIS AND APPLICATION TO A Q-SWITCHED ND-YAG LASER [J].

CUTOLO, A ;

ESPOSITO, A ;

ISERNIA, T ;

PIERRI, R ;

ZENI, L .

APPLIED OPTICS, 1992, 31 (15) :2722-2733

[2] TRANSVERSE-MODE ANALYSIS OF A LASER-BEAM BY NEAR-FIELD AND FAR-FIELD INTENSITY MEASUREMENTS [J].

CUTOLO, A ;

ISERNIA, T ;

IZZO, I ;

PIERRI, R ;

ZENI, L .

APPLIED OPTICS, 1995, 34 (34) :7974-7978

[3]

CUTOLO A, 1992, OPT QUANT ELECTRON, V24, P963

[4] 2-DIMENSIONAL OPTICAL LATTICES IN A CO2-LASER [J].

DANGOISSE, D ;

HENNEQUIN, D ;

LEPERS, C ;

LOUVERGNEAUX, E ;

GLORIEUX, P .

PHYSICAL REVIEW A, 1992, 46 (09) :5955-5958

[5] THE MULTIMODE LASER-RADIATION AS A GAUSSIAN-SCHELL MODEL BEAM [J].

GASE, R .

JOURNAL OF MODERN OPTICS, 1991, 38 (06) :1107-1115

[6] BEAT FREQUENCIES BETWEEN MODES OF CONCAVE-MIRROR OPTICAL RESONATOR [J].

GOLDSBOROUGH, JP .

APPLIED OPTICS, 1964, 3 (02) :267-&

[7]

HUEGEL H, 1992, STRAHLUERKZEUG LASER

[8]

PU J, 1995, OPTIK, V99, P120

[9] COHERENT-MODE REPRESENTATION OF GAUSSIAN SCHELL-MODEL SOURCES AND OF THEIR RADIATION-FIELDS [J].

STARIKOV, A ;

WOLF, E .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1982, 72 (07) :923-928

[10] SPATIAL AND TEMPORAL INSTABILITIES IN A CO2-LASER [J].

TREDICCE, JR ;

QUEL, EJ ;

GHAZZAWI, AM ;

GREEN, C ;

PERNIGO, MA ;

NARDUCCI, LM ;

LUGIATO, LA .

PHYSICAL REVIEW LETTERS, 1989, 62 (11) :1274-1277

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