Quantum-limited measurements of distance fluctuations with a multimode detector
Optics
2017-03-29 v2 Instrumentation and Detectors
Abstract
An experimental scheme is introduced to measure multiple parameters that are encoded in the phase quadrature of a light beam. Using a modal description and a spectrally-resolved homodyne detection, it is shown that all of the information is collected simultaneously, such that a single measurement allows extracting the value of multiple parameters \emph{post-facto}. With a femtosecond laser source, we apply this scheme to a measurement of the delay between two pulses with a shot-noise limited sensitivity as well as extracting the dispersion value of a dispersive medium.
Keywords
Cite
@article{arxiv.1703.08479,
title = {Quantum-limited measurements of distance fluctuations with a multimode detector},
author = {Valérian Thiel and Jonathan Roslund and Pu Jian and Claude Fabre and Nicolas Treps},
journal= {arXiv preprint arXiv:1703.08479},
year = {2017}
}