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SQUEEZED STATES OF LIGHT FROM AN OPTICAL PARAMETRIC OSCILLATOR

Posted on:1988-10-12Degree:Ph.DType:Dissertation
University:The University of Texas at AustinCandidate:WU, LING-ANFull Text:PDF
GTID:1478390017958021Subject:Optics
Abstract/Summary:
Squeezed states of the electromagnetic field have been generated by degenerate parametric down conversion in a subthreshold optical parametric oscillator. Reductions in photocurrent noise greater than 60% relative to the standard quantum limit have been observed in a balanced homodyne detector. A quantitative comparison with theory suggests that the observed noise reductions result from a field that in the absence of linear losses would be squeezed more than ten-fold. An explicit demonstration of the Heisenberg uncertainty principle for the electromagnetic field is made from the measurements, which show that the field state produced by the down conversion process is a state of minimum uncertainty.
Keywords/Search Tags:Parametric, Field
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