2014
DOI: 10.1103/physreva.90.013808
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Higher-order nonclassicalities in a codirectional nonlinear optical coupler: Quantum entanglement, squeezing, and antibunching

Abstract: Higher order nonclassical properties of fields propagating through a codirectional asymmetric nonlinear optical coupler which is prepared by combining a linear wave guide and a nonlinear (quadratic) wave guide operated by second harmonic generation are studied. A completely quantum mechanical description is used here to describe the system. Closed form analytic solutions of Heisenberg's equations of motion for various modes are used to show the existence of higher order antibunching, higher order squeezing, hi… Show more

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Cited by 78 publications
(95 citation statements)
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“…Sen-Mandal method is known to provide such a perturbative solution. Further, Sen-Mandal method is already shown to be useful in detecting nonclassical characters not identified by short-length solution [13,19]. The requirement of long interaction length explicitly shows the advantage of Sen-Mandal approach over the conventional short-length approximation, as the former is not restricted by L (i.e., valid for long interaction length) whereas the later is valid only for short-length (i.e., restricted by the value of L).…”
Section: The Model and The Solutionmentioning
confidence: 98%
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“…Sen-Mandal method is known to provide such a perturbative solution. Further, Sen-Mandal method is already shown to be useful in detecting nonclassical characters not identified by short-length solution [13,19]. The requirement of long interaction length explicitly shows the advantage of Sen-Mandal approach over the conventional short-length approximation, as the former is not restricted by L (i.e., valid for long interaction length) whereas the later is valid only for short-length (i.e., restricted by the value of L).…”
Section: The Model and The Solutionmentioning
confidence: 98%
“…Waveguides interact with each other through evanescent wave. Extending the earlier investigation [13] here we study a http://dx.doi.org/10.1016/j.physleta.2014.09.056 0375-9601/© 2014 Elsevier B.V. All rights reserved. similar asymmetric nonlinear optical coupler for contradirectional propagation of fields.…”
Section: Introductionmentioning
confidence: 96%
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