Title

Motion-free hybrid design laser beam propagation analyzer using a digital micromirror device and a variable focus liquid lens

Authors

Authors

M. Sheikh;N. A. Riza

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Optics

Keywords

PROFILER; DIVERGENCE; PARAMETERS; Optics

Abstract

To the best of our knowledge, we propose the first motion-free laser beam propagation analyzer with a hybrid design using a digital micromirror device (DMD) and a liquid electronically controlled variable focus lens (ECVFL). Unlike prior analyzers that require profiling the beam at multiple locations along the light propagation axis, the proposed analyzer profiles the beam at the same plane for multiple values of the ECVFL focal length, thus eliminating beam profiler assembly motion. In addition to measuring standard Gaussian beam parameters, the analyzer can also be used to measure the M-2 beam propagation parameter of a multimode beam. Proof-of-concept beam parameter measurements with the proposed analyzer are successfully conducted for a 633 nm laser beam. Given the all-digital nature of the DMD-based profiling and all-analog motion-free nature of the ECVFL beam focus control, the proposed analyzer versus prior art promises better repeatability, speed, and reliability. (C) 2010 Optical Society of America

Journal Title

Applied Optics

Volume

49

Issue/Number

16

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

D6

Last Page

D11

WOS Identifier

WOS:000278265600035

ISSN

1559-128X

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