Observation of scalable sub-Poissonian-field lasing in a microlaser
Abstract
Sub-Poisson field with much reduced fluctuations in a cavity can boost quantum precision measurements via cavity-enhanced light-matter interactions. Strong coupling between an atom and a cavity mode has been utilized to generate highly sub-Poisson fields. However, a macroscopic number of optical intracavity photons with more than 3dB variance reduction in a setting of laser has not been possible. Here, we report sub-Poisson field lasing in a microlaser operating with hundreds of atoms with well-regulated atom-cavity coupling and interaction time. Its photon-number variance was 4dB below the standard quantum limit while the intracavity mean photon number scalable up to 600. The highly sub-Poisson photon statistics were not deteriorated by simultaneous interaction of a large number of atoms. Our finding suggests an effective pathway to widely scalable quasi-Fock-state lasing at the macroscopic scale.
Keywords
Cite
@article{arxiv.1906.11019,
title = {Observation of scalable sub-Poissonian-field lasing in a microlaser},
author = {Byoung-moo Ann and Younghoon Song and Junki Kim and Daeho Yang and Kyungwon An},
journal= {arXiv preprint arXiv:1906.11019},
year = {2019}
}
Comments
7 pages, 5 figures