Stability improvement of a fiber-based frequency reference at 1.5 µm using an original detection technique for interference cancellation

0582260 - ÚPT 2024 RIV US eng A - Abstract
Roncin, V. - Hrabina, Jan - Pravdová, Lenka - Du-Burck, F.
Stability improvement of a fiber-based frequency reference at 1.5 µm using an original detection technique for interference cancellation.
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). New York: IEEE, 2023. (2023), č. článku 10231821. ISBN 979-835034599-5.
[Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023. 26.06.2023-30.06.2023, Munich]
Grant - others:AV ČR(CZ) CNRS-22-14
Program: Bilaterální spolupráce
Institutional support: RVO:68081731
Keywords : frequency standard * saturation spectroscopy * detection technique * acetylene cell * interference cancellation * laser standard * frequency stability * multipass geometry
OECD category: Optics (including laser optics and quantum optics)
https://ieeexplore.ieee.org/document/10231821

We have developed an optical frequency standard at 1.5 m based on detecting an acetylene transition by saturation spectroscopy in an absorption cell. With the aim to achieve a compact device combining stability and transportability, the setup is entirely composed of fibered components, except for the acetylene cell. The main limitation to reaching a long-term stability level in the 10-14 range is interference fringes. We describe here an original method based on the detection of the error signal at a frequency which is not modulating the interference. We also study the benefit of a multi-pass geometry for the acetylene cell in order to both improve the SNR of the detected signal and reduce the volume.
Permanent Link: https://hdl.handle.net/11104/0350528