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Proceedings Paper

Complex pattern projection through a multimode fiber
Author(s): Damien Loterie; Salma Farahi; Demetri Psaltis; Christophe Moser
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Paper Abstract

Wavefront shaping through multimode fibers has many interesting applications, such as micromanipulation and endoscopy, where the small diameter of fibers is an advantage in terms of miniaturization. However, pattern projection can suffer from deleterious interference effects depending on the measurement conditions. We experimentally demonstrate the projection of high quality patterns through a multimode fiber by correcting for phase drifts while measuring the transmission matrix, and by controlling both the amplitude and the phase of the wavefront sent to the fiber. We also use the matrix in the reverse direction by reconstructing a distal image from a proximally measured speckle field. This opens up new possibilities for imaging through a multimode fiber by decoding wavefronts travelling both ways along the fiber.

Paper Details

Date Published: 10 March 2015
PDF: 6 pages
Proc. SPIE 9335, Adaptive Optics and Wavefront Control for Biological Systems, 93350I (10 March 2015); doi: 10.1117/12.2077404
Show Author Affiliations
Damien Loterie, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Salma Farahi, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Demetri Psaltis, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Christophe Moser, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 9335:
Adaptive Optics and Wavefront Control for Biological Systems
Thomas G. Bifano; Joel Kubby; Sylvain Gigan, Editor(s)

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