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arXiv · 1712.09171

Long-distance thermal temporal ghost imaging over optical fibers

Xin Yao·Wei Zhang·Hao Li·Lixing You·Zhen Wang·Yidong Huang
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Abstract

A thermal ghost imaging scheme between two distant parties is proposed and experimentally demonstrated over long-distance optical fibers. In the scheme, the weak thermal light is split into two paths. Photons in one path are spatially diffused according to their frequencies by a spatial dispersion component, then illuminate the object and record its spatial transmission information. Photons in the other path are temporally diffused by a temporal dispersion component. By the coincidence measurement between photons of two paths, the object can be imaged in a way of ghost imaging, based on the frequency correlation between photons in the two paths. In the experiment, the weak thermal light source is prepared by the spontaneous four-wave mixing in a silicon waveguide. The temporal dispersion is introduced by single mode fibers of 50 km, which also could be looked as a fiber link. Experimental results show that this scheme can be realized over long-distance optical fibers.

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Xin Yao, Wei Zhang, Hao Li, Lixing You, Zhen Wang, Yidong Huang. 2017-12-26. Long-distance thermal temporal ghost imaging over optical fibers. https://doi.org/10.1364/ol.43.000759

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