Complex pattern projection through a multimode fiber

Damien Loterie; Salma Farahi; Demetri Psaltis; Christophe Moser

doi:10.1117/12.2077404

10 March 2015 Complex pattern projection through a multimode fiber

Damien Loterie, Salma Farahi, Demetri Psaltis, Christophe Moser

Proceedings Volume 9335, Adaptive Optics and Wavefront Control for Biological Systems; 93350I (2015) https://doi.org/10.1117/12.2077404
Event: SPIE BiOS, 2015, San Francisco, California, United States

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.

Citation Download Citation

Damien Loterie, Salma Farahi, Demetri Psaltis, and Christophe Moser "Complex pattern projection through a multimode fiber", Proc. SPIE 9335, Adaptive Optics and Wavefront Control for Biological Systems, 93350I (10 March 2015); https://doi.org/10.1117/12.2077404

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