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Proceedings Paper

Monolithic device for on-chip fast optical phase conjugation integrating an image sensor and a spatial light modulator
Author(s): Timothé LaForest; Arnaud Verdant; Antoine Dupret; Sylvain Gigan; François Ramaz; Gilles Tessier; Émilie Benoit à la Guillaume
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Paper 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.

Paper Details

Date Published: 8 March 2014
PDF: 6 pages
Proc. SPIE 8989, Smart Photonic and Optoelectronic Integrated Circuits XVI, 89890N (8 March 2014); doi: 10.1117/12.2039675
Show Author Affiliations
Timothé LaForest, CEA-LETI (France)
Arnaud Verdant, CEA-LETI (France)
Antoine Dupret, CEA-LETI (France)
Sylvain Gigan, Institut Langevin, ESPCI Paris Tech, CNRS (France)
François Ramaz, Institut Langevin, ESPCI Paris Tech, CNRS (France)
Gilles Tessier, Neurophysiology and New Microscopies Lab., INSERM, CNRS, Univ. Paris Descartes (France)
Émilie Benoit à la Guillaume, Institut Langevin, ESPCI Paris Tech, CNRS (France)

Published in SPIE Proceedings Vol. 8989:
Smart Photonic and Optoelectronic Integrated Circuits XVI
Louay A. Eldada; El-Hang Lee; Sailing He, Editor(s)

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