Spatial modes of phase-sensitive parametric image amplifiers with circular and elliptical Gaussian pumps

Muthiah Annamalai*, Nikolai Stelmakh, Michael Vasilyev, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We develop a method for finding the number and shapes of the independently squeezed or amplified modes of a spatially-broadband, travelling-wave, frequency- and polarization-degenerate optical parametric amplifier in the general case of an elliptical Gaussian pump. The obtained results show that for tightly focused pump only one mode is squeezed, and this mode has a Gaussian TEM00 shape. For larger pump spot sizes that support multiple modes, the shapes of the most-amplified modes are close to Hermite- or Laguerre-Gaussian profiles. These results can be used to generate matched local oscillators for detecting high amounts of squeezing and to design parametric image amplifiers that introduce minimal distortion.

Original languageEnglish (US)
Pages (from-to)26710-26724
Number of pages15
JournalOptics Express
Volume19
Issue number27
DOIs
StatePublished - Dec 19 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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