Versatile method for achieving 1% speckle contrast in large-venue laser projection displays using a stationary multimode optical fiber

被引：88

作者：

Manni, Jeffrey G. ^{[1
]}

Goodman, Joseph W. ^{[2
]}

机构：

[1] JGM Associates Inc, Burlington, MA 01803 USA

[2] Stanford Univ, Los Altos, CA 94022 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 10期

关键词：

PHOTONIC CRYSTAL FIBER; SUPERCONTINUUM GENERATION; POWER-FLOW; PULSED-LASER; REDUCTION; DISPERSION; ARRAY;

D O I：

10.1364/OE.20.011288

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a method based on quantitative theoretical analysis for achieving speckle contrast of 1% or less in images created by a full-frame laser projection display system. The method employs a stationary multimode optical fiber to achieve the effect of using a rapidly moving diffuser, but without moving the fiber or any other system component. When a suitably large projector lens is used, low-speckle illumination light delivered through the fiber acts in conjunction with wavelength diversity at the projection screen to achieve speckle contrast of 1% in viewed images. We describe in detail how the proposed method might be used with most types of high-power visible lasers being considered for large-venue displays. When used with visible laser diodes, the method may also be suitable for use in laser-based television. (C) 2012 Optical Society of America

引用

页码：11288 / 11315

页数：28

共 46 条

[1]

Agrawal G P., 2012, Nonlinear Fiber Optics

[2]

Agrawal G. P., 2007, NONLINEAR FIBER OPTI

[3] MEASUREMENT OF MODAL DISPERSION FOR A STEP-INDEX MULTIMODE OPTICAL-FIBER IN THE UV-VISIBLE REGION USING A PULSED-LASER [J].