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arXiv · 1810.07552

Mode-selective Image Upconversion

Santosh Kumar·He Zhang·Stephanie Maruca·Yu-Ping Huang
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Abstract

We study selective upconversion of optical signals according to their detailed transverse electromagnetic modes, and demonstrate its proof of operations in a nonlinear crystal. The mode selectivity is achieved by preparing the pump wave in an optimized spatial profile to drive the upconversion. For signals in the Laguerre-Gaussian modes, we show that a mode can be converted with up to 60 times higher efficiency than an overlapping but orthogonal mode. This nonlinear-optical approach may find applications in compressive imaging, pattern recognition, quantum communications, and others where the existing linear-optical methods are limited.

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Santosh Kumar, He Zhang, Stephanie Maruca, Yu-Ping Huang. 2018-12-05. Mode-selective Image Upconversion. https://doi.org/10.1364/ol.44.000098

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