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

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2 Author(s)
Riza, N.A. ; Coll. of Opt./Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA ; Ghauri, F.N.

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.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 7 )