Compact Multifringe Interferometry with Subpicometer Precision

authored by
Katharina Sophie Isleif, Gerhard Heinzel, Moritz Mehmet, Oliver Gerberding
Abstract

Deep-frequency-modulation interferometry combines optical minimalism with multifringe readout. However, precision is key for applications such as optical gradiometers for satellite geodesy or as dimensional sensors for ground-based gravity experiments. We present a single-component interferometer smaller than a cubic inch. Two of these are compared to each other to demonstrate tilt and displacement measurements with a precision of less than 20 nrad/Hz and 1 pm/Hz at frequencies below 1 Hz.

Organisation(s)
Institute of Gravitation Physics
QuantumFrontiers
External Organisation(s)
Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
Type
Article
Journal
Physical Review Applied
Volume
12
ISSN
2331-7019
Publication date
09.2019
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Physics and Astronomy(all)
Electronic version(s)
https://doi.org/10.48550/arXiv.1903.02945 (Access: Open)
https://doi.org/10.1103/PhysRevApplied.12.034025 (Access: Open)
https://doi.org/10.15488/10435 (Access: Open)