Coherence area profiling in multi-spatial-mode squeezed states

Journal Article · Sat Sep 12 00:00:00 EDT 2015 · Journal of Modern Optics

DOI:https://doi.org/10.1080/09500340.2015.1080869· OSTI ID:1215574

Lawrie, Benjamin J. ^[1]; Pooser, Raphael C. ^[1]; Otterstrom, Nils T. ^[2]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Brigham Young Univ., Provo, UT (United States)

The presence of multiple bipartite entangled modes in squeezed states generated by four-wave mixing enables ultra-trace sensing, imaging, and metrology applications that are impossible to achieve with single-spatial-mode squeezed states. For Gaussian seed beams, the spatial distribution of these bipartite entangled modes, or coherence areas, across each beam is largely dependent on the spatial modes present in the pump beam, but it has proven difficult to map the distribution of these coherence areas in frequency and space. We demonstrate an accessible method to map the distribution of the coherence areas within these twin beams. In addition, we also show that the pump shape can impart different noise properties to each coherence area, and that it is possible to select and detect coherence areas with optimal squeezing with this approach.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1215574
• Journal Information: Journal of Modern Optics, Journal Name: Journal of Modern Optics; ISSN 0950-0340
• Publisher: Taylor and Francis
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
squeezed states
quantum optics
coherence areas