INVITE SPEAKERS

Assoc.Prof. Tohoku University
Tohoku University, Japan

Speech Title: GPS-Synchronized Dual-Comb Spectroscopy for Precision Angle Measurement
Abstract: Dual-comb spectroscopy (DCS) enables phase-coherent optical measurements directly linked to time standards. In this work, we present a precision angle measurement scheme in which a dual-comb system is synchronized to a GPS 1 pulse-per-second (1 PPS) signal. By referencing the combs to a global timing standard,the measurement becomes inherently consistent across different locations.Angular displacement is encoded in the phase of dual-comb interferometric signals, allowing high-resolution readout without mechanical scanning. This approach establishes a framework for globally comparable angle measurements, enabling distributed precision sensing based on a shared reference.