Long-distance thermal temporal ghost imaging over optical fibers

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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Cited by in corpus (4)

• Computational distributed fiber-optic sensing
• Mid-infrared single-photon computational temporal ghost imaging
• High-speed photon correlation monitoring of amplified quantum noise by chaos using deep-learning balanced homodyne detection
• Mid-infrared temporal ghost imaging via two-photon structured encoding