Open AccessDouble Rayleigh scattering in a digitally enhanced, all-fiber optical frequency reference
Author(s) -
Ya Zhang,
Chathura P. Bandutunga,
T. McRae,
Malcolm B. Gray,
J. H. Chow
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.433110
Subject(s) - rayleigh scattering , optics , interferometry , noise (video) , physics , phase noise , scattering , phase (matter) , optical fiber , coupling (piping) , fiber , materials science , computer science , artificial intelligence , composite material , quantum mechanics , metallurgy , image (mathematics)
We demonstrate a passive, all-optical fiber frequency reference using a digitally enhanced homodyne interferometric phase readout. We model the noise contributions from fiber thermal noise and the coupling of double Rayleigh scattering in a digitally enhanced homodyne interferometer. A system frequency stability of 0.1 Hz/Hz is achieved above 100 Hz, which coincides with the double Rayleigh scattering estimate and is approximately a factor of five above the thermo-dynamic noise limit.