Conditional teleportation using optical squeezers and photon counting

Optical encryption using photon-counting polarimetric imaging.

We present a polarimetric-based optical encoder for image encryption and verification. A system for generating random polarized vector keys based on a Mach-Zehnder configuration combined with translucent liquid crystal displays in each path of the interferometer is developed. Polarization information of the encrypted signal is retrieved by taking advantage of the information provided by the Sto...

photon-counting optical communications using a superconducting nanowire detector

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1.25-Gbit/s photon-counting optical communications using a two- element superconducting nanowire single photon detector

The sensitivity of a high-rate photon-counting optical communications link depends on the performance of the photon counter used to detect the optical signal. In this paper, we focus on ways to reduce the effect of blocking, which is loss due to time periods in which the photon counter is inactive following a preceding detection event. This blocking loss can be reduced by using an array of phot...

Photon-counting optical coherence-domain reflectometry using superconducting single-photon detectors.

We consider the use of single-photon counting detectors in coherence-domain imaging. Detectors operated in this mode exhibit reduced noise, which leads to increased sensitivity for weak light sources and weakly reflecting samples. In particular, we experimentally demonstrate the possibility of using superconducting single-photon detectors (SSPDs) for optical coherence-domain reflectometry (OCDR...

Deterministic teleportation using single-photon entanglement as a resource