Super resolution hybrid analog-digital optical beam profiler using digital micromirror device

Author

Riza, N.A. ; Ghauri, F.N.

Author_Institution

Coll. of Opt./Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA

Volume

17

Issue

7

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

1492

Lastpage

1494

Abstract

Demonstrated for the first time is a hybrid analog-digital laser beam profiler based on analog fine motion of a digital micromirror device (DMD) and within-chip digital micromirror controls. The profiler can operate with high-power watt-level laser beams, providing both submicron-level high resolution and wide area profiling coverage. The demonstrated profiler tested over a 600-μm zone using a 1550-nm Gaussian beam shows a 2-μm profiling edge movement resolution limited by the analog motion mechanics.

Keywords

laser beams; measurement by laser beam; micromirrors; 1550 nm; Gaussian beam; digital micromirror controls; digital micromirror device; hybrid analog-digital optical beam profiler; Biomedical optical imaging; Fiber lasers; Laser applications; Laser beams; Laser modes; Micromirrors; Motion control; Optical beams; Optical crosstalk; Photodetectors; Digital micromirror device (DMD); laser beams; laser measurement applications; laser measurements;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.849247

Filename

1453654