What question did this study set out to answer?

To develop and evaluate a diffraction-based characterization method for measuring the phase response of spatial light modulators exhibiting coupled amplitude and phase modulation.

September 18, 2006Applied Optics

Diffraction-based determination of the phase modulation for general spatial light modulators

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Authors

DEDavid EngströmUniversity of Gothenburg GMGabriel MilewskiChalmers University of Technology JBJörgen BengtssonUppsala University

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Implication

Experimental study demonstrates diffraction-based phase characterization for spatial light modulators, indicating robust in situ testing using low-coherence light sources.

Key Points

To develop and evaluate a diffraction-based characterization method for measuring the phase response of spatial light modulators exhibiting coupled amplitude and phase modulation.
Implemented a diffraction-based optical characterization setup capable of in situ measurements under conditions of mechanical vibration and low temporal coherence.
Evaluated phase modulation across the device operating range, validating performance against conventional interferometric measurements and testing with a light-emitting diode light source.
Successfully determined phase modulation across the entire 2π radian range with high accuracy, even in modulators with full amplitude modulation depth and transmission nulls.
Demonstrated reliable phase characterization under mechanical vibration and using low-coherence light-emitting diodes without requiring interferometer stability.

Cite This Study

Engström et al. (2006) studied this question.

synapsesocial.com/papers/6a94ffd9b7c083589ab2c3cb https://doi.org/10.1364/ao.45.007195

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Implication

Experimental study demonstrates diffraction-based phase characterization for spatial light modulators, indicating robust in situ testing using low-coherence light sources.

Diffraction-based determination of the phase modulation for general spatial light modulators

Discussion

Member takes

Implication

Key Points

Cite This Study

Diffraction-based determination of the phase modulation for general spatial light modulators

Discussion

Member takes

Implication

Key Points

Cite This Study

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