Optica Open
Browse
arXiv.svg (5.58 kB)

Realignment-free cryogenic macroscopic optical cavity coupled to an optical fiber

Download (5.58 kB)
preprint
posted on 2023-01-19, 17:02 authored by Vitaly Fedoseev, Matteo Fisicaro, Harmen van der Meer, Wolfgang Löffler, Dirk Bouwmeester
We present a cryogenic setup where an optical Fabry-Perot resonator is coupled to a single-mode optical fiber with coupling efficiency above 90% at mK temperatures without realignment during cooling down. The setup is prealigned at room temperature to compensate for the thermal contraction and change of the refractive index of the optical components during cooling down. The high coupling efficiency is achieved by keeping the setup rotation-symmetric around the optical axis. The majority of the setup components are made of Invar (FeNi36) which minimizes the thermal contraction. High coupling efficiency is essential in quantum optomechanical experiments.

History

Disclaimer

This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.

Usage metrics

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC