Quantum-Enhanced Fiber-Optic Gyroscopes Using Quadrature Squeezing and Continuous Variable Entanglement

Abstract

We analyze a fiber-optic gyroscope design enhanced by the injection of quantum-optical squeezed vacuum into a fiber-based Sagnac interferometer. In the presence of fiber loss, we compute the maximum attainable enhancement over a classical, laser-driven fiber-optic gyroscope in terms of the angular velocity estimate variance from a homodyne measurement. We find a constant enhancement factor that depends on the degree of squeezing introduced into the system but has diminishing returns beyond $10$--$15$ dB of squeezing. Under a realistic constraint of fixed total fiber length, we show that segmenting the available fiber into multiple Sagnac interferometers fed with a multi-mode-entangled squeezed vacuum, thereby establishing quantum entanglement across the individual interferometers, improves the rotation estimation variance by a factor of $e\approx 2.718$.

arXiv comment12 pages, 8 figures

References in corpus (26)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• Quantum sensing
• Advances in Quantum Metrology
• Gaussian Quantum Information
• A gravitational wave observatory operating beyond the quantum shot-noise limit: Squeezed light in application
• Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
• Advances in Photonic Quantum Sensing
• Continuous variable quantum information: Gaussian states and beyond
• Quantum Illumination with Gaussian States
• Quantum enhanced positioning and clock synchronization
• Quantum noise limited and entanglement-assisted magnetometry
• Distributed quantum sensing in a continuous variable entangled network
• Multi-parameter estimation in networked quantum sensors
• Distributed Quantum Sensing Using Continuous-Variable Multipartite Entanglement
• Distributed Quantum Metrology and the Entangling Power of Linear Networks
• Quantum Reading of a Classical Digital Memory
• Demonstration of a Reconfigurable Entangled Radiofrequency-Photonic Sensor Network
• Entanglement-enhanced optical gyroscope
• Distributed quantum sensing enhanced by continuous-variable error correction
• 13dB Squeezed Vacuum States at 1550nm from 12mW external pump power at 775nm
• Sagnac interferometry with a single atomic clock
• Optimal Distributed quantum sensing using Gaussian states
• The role of entanglement in calibrating optical quantum gyroscopes
• Physical-Layer Supervised Learning Assisted by an Entangled Sensor Network
• Heisenberg-limited Sagnac Interferometer with Multi-particle States
• Optimal Gaussian Metrology for Generic Multimode Interferometric Circuit

Cited by in corpus (16)

• Entanglement-enhanced quantum metrology: from standard quantum limit to Heisenberg limit
• Entanglement-Based Quantum Information Technology
• Floquet Engineering to Overcome No-Go Theorem of Noisy Quantum Metrology
• Quantum metrology in the noisy intermediate-scale quantum era
• Geometric phases and the Sagnac effect: Foundational aspects and sensing applications
• Atom-light hybrid quantum gyroscope
• Entanglement Enhanced Estimation of a Parameter Embedded in Multiple Phases
• Noisy quantum gyroscope
• Enhancing Gaussian quantum metrology with position-momentum correlations
• Multiparameter simultaneous optimal estimation with an SU(2) coding unitary evolution
• Quantum entangled Sagnac interferometer
• Entanglement and non-locality in quantum protocols with identical particles
• Quantum Metrology via Floquet-Engineered Two-axis Twisting and Turn Dynamics
• Zeptosecond-scale single-photon gyroscope
• Temperature and non-Markovian parameter estimation in quantum Brownian motion
• Compact Fiber-Coupled Narrowband Two-Mode Squeezed Light Source