Search Results - vijay+nafria

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Amplified Entanglement Assisted Communication Outperforming Classical Laser Communication in Strong Atmospheric Turbulence Regime

Contrary to the common belief that quantum entanglement is destroyed by amplification, in entanglement-assisted communication systems dominated by attenuation effects rather than noise, the signal photons can be amplified by the erbium-doped fiber amplifier (EDFA) without destroying the entanglement. The inventors developed a terrestrial free-space...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Engineering & Physical Sciences > Communications & Networking

Entanglement Based CV-QKD with Information Reconciliation over Entanglement Assisted Link

This invention is an entanglement-based continuous variable-quantum key distribution (CV-QKD) scheme that performs information reconciliation over the entanglement assisted communication link. The same entanglement generation source is used in both raw key transmission and information reconciliation. Experimental demonstrations over the free‐space optical...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Engineering & Physical Sciences > Communications & Networking

Two-Pumps-Based Entanglement Generation Source Enabling Entanglement-Assisted Communication over Turbulent Free-Space Optical (FSO) Channels

This technology improves Quantum Entangled Free Space Optical Communication by employing two laser pumps and modulating on the signal photons, while employing the idler photons as the reference signal. The use of two pumps gives the flexibility of generating the signal photons at arbitrary wavelength in C- and L-bands, which is not possible with the...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Engineering & Physical Sciences > Quantum

Coherent States Based Quantum Information Processing and Quantum Computing Analogs

This technology represents a step forward creating a decoherence-free optical quantum information processing and computing analog, which does not rely on the fragile quantum states but rather robust classical states. The inventors propose how to implement the universal set of quantum gates classical analogs in integrated optics by employing classical...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Quantum

Wavelength Diversity based Low Probability to Intercept (LPI) Free-Space Optical Communications in Strong Turbulence Regime

This technology uses an encoded broadband source on two different center wavelengths on different balanced detectors simultaneously to provide low probability for intercept communications for Free Space Optical communications and defense applications. Experimental results demonstrated success using wavelength diversity together with LDPC coded modulation...

Published: 8/13/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Optical, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Engineering & Physical Sciences > Photonics

Entanglement Assisted Sensing and Radars with the Phase-Conjugation on Idler Photons

This innovation is a concept suitable for various quantum sensing and radar applications. The proposed entanglement generation source and optical-phase conjugation modules are of low-cost and easy to integrate in photonic integrated circuit (PIC) technology. These quantum sensing modules and architectures are suitable for use in entanglement assisted...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Engineering & Physical Sciences > Quantum

Incoherent Light Sources-Based Low Probability of Detection and Covert Radars over Atmospheric Turbulence Channels

This technology is a low probability of detection (LPD) /covert radar concept that employs incoherent, broadband light sources. The main idea is to hide the radar signal in solar radiation while employing constant amplitude modulation schemes at high-speed to detect the presence of the target via cross-correlation method. The technology has been tested...

Published: 8/1/2024 | Inventor(s): Ivan Djordjevic, Vijay Nafria

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Engineering & Physical Sciences > Photonics