Title

Motion-Free Hybrid Design Laser Beam Propagation Analyzer Using A Digital Micromirror Device And A Variable Focus Liquid Lens

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 alsobe used to measure the M2 beam propagation parameter of a multimode beam. Proof-of-concept beam parameter measurements with the proposed analyzer are successfully conducted for a 633nm 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. © 2010 Optical Society of America.

Publication Date

6-1-2010

Publication Title

Applied Optics

Volume

49

Issue

16

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.49.0000D6

Socpus ID

77953775045 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77953775045

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