Optical Metrology

All-digital and hybrid analog-digital beam profiling technology

12.03.2009 - Photonik international 1/2009 |  [ deutsche Version lesen ]

For the design and implementation of next generation super precision optical systems, the first commercially available hybrid analog-digital laser beam profiler is based on analog fine motion of a Digital Micro-Mirror Device (DMD) and within-chip digital control of near 1 million micro-mirrors acting as software programmable pin-holes. This wide area profiler provides sub-µm resolution with Watt level laser beams even at fluctuating power in the UV, visible, and near infrared. An equivalent all-digital LCD-based profiler is under development.

Photonik I1/2009
Authors: Nabeel A. Riza, Nuonics, Inc., Oviedo, FL, USA, and CREOL, University of Central Florida, Orlando, FL, USA

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