Nontrivial intensity correlation from a coherent continuous-wave laser beam

Thumbnail Image

Files

PhysRevA.110.L031702.pdf (921.18 KB)

Links to Files

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.L031702

Permanent Link

https://doi.org/10.1103/PhysRevA.110.L031702
 http://hdl.handle.net/11603/36545

Collections

UMBC Physics Department
UMBC Faculty Collection
UMBC Student Collection

Author/Creator

Author/Creator ORCID

https://orcid.org/0000-0003-2633-7253
 https://orcid.org/0000-0002-7542-7047

Date

2024-09-04

Type of Work

journal articles
Text

Department

Program

Citation of Original Publication

Joshi, Binod, Thomas A. Smith, and Yanhua Shih. “Nontrivial Intensity Correlation from a Coherent Continuous-Wave Laser Beam.” Physical Review A 110, no. 3 (September 4, 2024): L031702. https://doi.org/10.1103/PhysRevA.110.L031702.

Rights

©2024 American Physical Society

Subjects

Abstract

We report an experimental observation of nontrivial intensity correlation of a continuous-wave fiber ring laser. The laser beam consists of approximately 450 000 independent longitudinal cavity modes, each in a coherent state representing a group of identical photons. Based on Glauber's second-order coherence theory, we conclude that the nontrivial intensity correlation is the result of a randomly created and randomly paired distinguishable group of identical photons interfering with the pair itself. This result is fundamentally interesting and practically useful.