NDLI: Secured optical communications using quantum entangled two-photon transparency modulation

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Secured optical communications using quantum entangled two-photon transparency modulation

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	2015
Description	A system and method is disclosed wherein optical signals are coded in a transmitter by tuning or modulating the interbeam delay time (which modulates the fourth-order coherence) between pairs of entangled photons. The photon pairs are either absorbed or not absorbed (transparent) by an atomic or molecular fluorescer in a receiver, depending on the inter-beam delay that is introduced in the entangled photon pairs. Upon the absorption, corresponding fluorescent optical emissions follow at a certain wavelength, which are then detected by a photon detector. The advantage of the disclosed system is that it eliminates a need of a coincidence counter to realize the entanglement-based secure optical communications because the absorber acts as a coincidence counter for entangled photon pairs.
File Size	717307
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20150004041
Archival Resource Key	ark:/13960/t2r54n47f
Language	English
Publisher Date	2015-03-31
Access Restriction	Open
Subject Keyword	Communications And Radar Data Links Spectroscopy Patents Coding Modulation Inventions Optical Communication Nonlinearity Telecommunication Photons Quantum Cryptography Transparence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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