Low-frequency fiber-optic vibration sensing with a Floquet-engineered optical lattice clock

Abstract

We propose a Floquet-engineered optical lattice clock based demodulation scheme to enhance the low-frequency performance of wound fiber-optic vibration sensors. Vibration-induced phase variations in the sensing fiber are demodulated by the Floquet-engineered Rabi spectra of the clock transition. The lattice depth with the fiber length and the Floquet-engineered Rabi spectra under the vibration from 200 Hz down to 0.5 Hz are simulated. With a fiber length of 4 km and transmission loss of 2 dB/km, a phase change sensitivity higher than 6 * 10^3 rad per g is achieved at both vibration frequencies of 200 Hz and 0.5 Hz.

References in corpus (12)

• Atomic clock performance beyond the geodetic limit
• Spin-orbit coupled fermions in an optical lattice clock
• Atomic Clocks for Geodesy
• Real-time geopotentiometry with synchronously linked optical lattice clocks
• Exploring dynamic localization with a Bose-Einstein condensate
• A clock with $8\times 10^{-19}$ systematic uncertainty
• High precision differential clock comparisons with a multiplexed optical lattice clock
• Synthetic spin-orbit coupling in an optical lattice clock
• Two clock transitions in neutral Yb for the highest sensitivity to variations of the fine-structure constant
• Floquet engineering Hz-Level Rabi Spectra in Shallow Optical Lattice Clock
• Rabi Spectroscopy and Sensitivity of a Floquet Engineered Optical Lattice Clock
• Low-frequency Gravitational Wave Detection via Double Optical Clocks in Space