Monolithic device for on-chip fast optical phase conjugation integrating an image sensor and a spatial light modulator

Timothé LaForest; Arnaud Verdant; Antoine Dupret; Sylvain Gigan; François Ramaz; Gilles Tessier; Émilie Benoit à la Guillaume

doi:10.1117/12.2039675

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8 March 2014 Monolithic device for on-chip fast optical phase conjugation integrating an image sensor and a spatial light modulator

Timothé LaForest, Arnaud Verdant, Antoine Dupret, Sylvain Gigan, François Ramaz, Gilles Tessier, Émilie Benoit à la Guillaume

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Proceedings Volume 8989, Smart Photonic and Optoelectronic Integrated Circuits XVI; 89890N (2014) https://doi.org/10.1117/12.2039675
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Optical phase conjugation is a technique that could find many applications in medical imaging and industry. However, state of the art techniques are limited in speed, portability and efficiency. Especially for digital optical phase conjugation, the electronic delays for image readout on a camera and addressing a spatial light modulator make this technique unpractical for phase conjugation in biological medium. Furthermore, the calibration of such a system is a very complex and expensive task. Thus, we propose integrating on the same device a camera and a liquid crystals spatial light modulator to achieve phase control thanks to in-pixel processing of a photodiode signal.

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Timothé LaForest, Arnaud Verdant, Antoine Dupret, Sylvain Gigan, François Ramaz, Gilles Tessier, and Émilie Benoit à la Guillaume "Monolithic device for on-chip fast optical phase conjugation integrating an image sensor and a spatial light modulator", Proc. SPIE 8989, Smart Photonic and Optoelectronic Integrated Circuits XVI, 89890N (8 March 2014); https://doi.org/10.1117/12.2039675

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