Quantum correlation measurement of laser power noise below shot noise

authored by

Jasper R. Venneberg, Benno Willke

Abstract

In this article, the quantum correlation measurement technique as a method of power noise monitoring is investigated. Its principal idea of correlating two photodetector signals is introduced and contrasted to the conventional approach, which uses only a single photodetector. We discuss how this scheme can be used to obtain power noise information below the shot noise of the detected beam and also below the electronic dark noise of the individual photodetectors, both of which is not possible with the conventional approach. Furthermore, experimental results are presented, that demonstrate a detection of technical laser power noise one order of magnitude below the shot noise of the detected beam.

Organisation(s)

Institute of Gravitation Physics
QuantumFrontiers

External Organisation(s)

Max Planck Institute for Gravitational Physics (Albert Einstein Institute)

Type

Article

Journal

Optics Continuum

Volume

1

Pages

1077-1084

No. of pages

8

Publication date

15.05.2022

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

Electronic version(s)

https://doi.org/10.48550/arXiv.2203.00443 (Access: Open)
https://doi.org/10.1364/OPTCON.450479 (Access: Closed)