Dual-Wavelength $\phi$-OFDR Using a Hybrid-Integrated Laser Stabilized to an Integrated SiN Coil Resonator

• DOI: 10.48550/arxiv.2411.00237
• Publication Date: 2024-01-01
• Authors: Idjadi, Mohamad H...; Grillanda, Stefano; Fontaine, Nicolas; Mazur, Mikael; Kim, Kwangwoong; Huang, Tzu-Yung; Bolle, Cristian; Kopf, Rose; Cappuzzo, Mark; Liu, Kaikai; Heim, David A. S.; Hunter, Andrew; Nelson, Karl D.; Blumenthal, Danie...
• Keywords: FOS: Physical sciences; Physics - Optics; Optics (physics.optics)

We demonstrate dual-wavelength distributed acoustic sensing over 37 km of standard single-mode fiber using $ϕ$-OFDR, utilizing a scalable hybrid-integrated dual-wavelength laser chip frequency-locked to a high-Q integrated SiN coil resonator.<br/>3 pages, 4 figures<br/>