Zero-Added-Loss Entanglement Multiplexing Using Time-Bin Spectral Shearing

INVENTION REFERENCE NUMBER

202606256

  • Quantum Information Technologies
This macro shot shows illuminated fiber optic cables plugged into a black circuit board. The blue light from the cables catches the edges of the board and the circuitry is visible on the sides of the board. Image from Envato

Quantum communication systems require reliable methods for generating and distributing entangled photons at higher rates and with greater consistency. This technology leverages an advanced entanglement source architecture, combining time-based quantum encoding with a novel frequency-management approach to improve entanglement distribution performance. The innovation is designed to support quantum networking applications that depend on high-quality heralded entanglement, helping increase system efficiency while maintaining compatibility with a range of quantum communication and memory platforms.

Description

This technology provides a new approach for multiplexed generation and distribution of entangled photons used in quantum communication systems. The design combines a time-based entanglement architecture with a frequency-control technique that enables dynamic management of spectral channels while preserving key quantum properties. The approach is intended to improve the performance of multiplexed entanglement sources without introducing significant additional losses typically associated with scaling quantum communication systems.

The technology includes methods for optimizing multiplexing performance across multiple spectral channels and demonstrates compatibility between time-based quantum encoding and frequency-shifting operations. Experimental validation indicates that the approach maintains coherence characteristics necessary for quantum networking applications. The architecture is particularly relevant for systems that require heralded entanglement generation and distribution, including future quantum repeater networks and other advanced quantum information systems. The design may also provide broader utility for quantum photonic platforms requiring deterministic frequency control and efficient management of quantum states.

Additional technical details of the disclosed technologies can be found here:

Zero-added-loss entanglement multiplexing using time-bin spectral shearing.

Benefits

  • Improves entanglement distribution rates in quantum communication systems
  • Supports multiplexed operation with minimal additional system loss
  • Maintains quantum-state coherence during frequency management processes
  • Compatible with time-based quantum encoding approaches
  • Enables deterministic control of photon spectral properties

Applications and Industries

  • Quantum communication networks
  • Quantum repeater systems
  • Quantum computing infrastructure
  • Quantum sensing and distributed measurement systems
  • Quantum memory and photonic integration technologies
  • Telecommunications and advanced networking research

Contact

To learn more about this technology, email [email protected] or call 865-574-1051.



Contact

To learn more about this technology, email [email protected] or call 865-574-1051.