Active stabilization of a Michelson interferometer at an arbitrary phase with sub-nm resolution
Optics
2015-06-18 v1
Abstract
We report on the active stabilization of a Michelson interferometer at an arbitrary phase angle with a precision better than one degree at nm, which corresponds to an optical path difference between the two arms of less than 1 nm. The stabilization method is ditherless and the error signal is computed from the spatial shift of the interference pattern of a reference laser, measured in real-time with a CCD array detector. We discuss the usefulness of this method for nanopositioning, optical interferometry and quantum optical experiments.
Cite
@article{arxiv.1312.4582,
title = {Active stabilization of a Michelson interferometer at an arbitrary phase with sub-nm resolution},
author = {Davide Grassani and Matteo Galli and Daniele Bajoni},
journal= {arXiv preprint arXiv:1312.4582},
year = {2015}
}