Wavefront sensing apparatus, method and applications
US9500531B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2009/0261
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wavefront sensing technique using Polarization Rotation INTerferometry (PRINT) provides a self-referencing, high-resolution, direct measurement of the spatially dependent phase profile of a given optical beam. A self-referencing technique is used to create a reference beam in the orthogonal polarization and a polarization measurement to measure the spatial-dependent polarization parameters to directly determine the absolute phase profile of the beam under test. A high-resolution direct measurement of the spatially-resolved phase profile of one or more optical beams is realized.
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