Quantum spectrum sensing systems

Quantum spectrum sensing systems using Rydberg atom-based vapor cell sensors address the challenges of wide-range electromagnetic detection in 5G and 6G communication systems, providing fast, accurate, and cost-effective spectrum analysis.

WO2025241028A1PCT designated stage Publication Date: 2025-11-27WAVERYDE INSTRUMENTS INC
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Patent Information

Application Number
PCT/CA2025/050721
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-10-18
Filing Date
2025-05-21
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

Existing wireless communication systems, particularly 5G and 6G, face challenges in efficiently detecting and monitoring electromagnetic radiation across a wide frequency range, requiring improved field-spectrum sensing with enhanced bandwidth, scan-speed, jamming resistance, accuracy, repeatability, passivity, simplicity, and cost-effectiveness, especially in challenging environments.

Method used

The implementation of quantum spectrum sensing (QSS) systems utilizing Rydberg atom-based vapor cell sensors, which include a probe laser, coupling laser, frequency comb generators, and optical detectors, enabling fast scanning, real-time spectrum analysis, and passive operation with self-calibration, and are configured to measure electromagnetic fields and interference without active electronics.

Benefits of technology

QSS systems provide fast scanning, high accuracy, and repeatability, are cost-effective, and operate passively, offering robust performance in various environments, including electronic warfare and 5G-6G site surveys, with the ability to detect electromagnetic radiation across a wide frequency range.

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Abstract

In a general aspect, a quantum spectrum sensing system is presented. In some implementations, a quantum spectrum sensing system includes a laser system, a vapor cell sensor, and an optical detector. The laser system includes first and second lasers configured to generate a first and second laser signals. The laser system also includes first and second comb generators configured to produce first and second frequency comb signals based on the first and second laser signals, respectively. The laser system includes a frequency separator that can select frequency components of the second frequency comb signal and a frequency shifter that can shift the selected frequency components toward Rydberg states of a vapor. The vapor cell sensor can receive input optical signals from the laser system and produce output optical signals based on interactions of the vapor with the input optical signals. The optical detector can detect the output optical signals.
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Citation Information

Patent Citations

  • Systems and methods for dual comb spectroscopy

    US20210080324A1

  • Continuous tunable RF sensor using rydberg atoms with high transmissivity

    US20220228972A1

  • Detecting Radio Frequency Electromagnetic Radiation Using Vapor Cell Sensors and Comb Spectra

    US20240036094A1

  • Tuning the output of a laser

    WO2023184013A1

Cited By

  • Quantum spectrum sensing networks

    US12716927B2