Simple Model for Spatial Coherence of Light at the Output of a Multimode Fiber

被引：5

作者：

Efimov, Anatoly ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2019年 / 37卷 / 22期

关键词：

Coherence; Speckle; Spatial coherence; Dispersion; Bandwidth; Coordinate measuring machines; Apertures; Effective number of modes; global degree of coherence; multimode fiber; partially coherent beam; spatial coherence; speckle; SPECKLE CONTRAST;

D O I：

10.1109/JLT.2019.2915788

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：

A model for the spatial coherence function of a partially coherent light produced at the output of a step-index multimode fiber excited with a spatially coherent broadband source is developed. The field is represented as a sum of coherent and partially coherent parts, the former being a fully developed speckle and the latter is described by a "Jinc" degree of coherence and uniform intensity over the core of the fiber. The model correctly describes all available experimental data, including global degree of coherence, and is intuitive and simple.

引用

页码：5647 / 5651

页数：5

共 17 条

[11] Optical coherence tomography speckle reduction by a partially spatially coherent source [J].