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Optics Letters

Optics Letters


  • Vol. 24, Iss. 1 — Jan. 1, 1999
  • pp: 43–45

Perturbation theory of quantum solitons: continuum evolution and optimum squeezing by spectral filtering

Dmitry Levandovsky, Michael Vasilyev, and Prem Kumar  »View Author Affiliations

Optics Letters, Vol. 24, Issue 1, pp. 43-45 (1999)

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We study the quantum-noise properties of spectrally filtered solitons in optical fibers. Perturbation theory, including a quantum description of the continuum, is used to derive a complete analytical expression for the second-order correlator of the amplitude quadrature. This correlator is subsequently used to optimize the frequency response of the filter numerically in order to achieve the minimum photon-number noise. For propagation distances up to three soliton periods, the length at which the best noise reduction occurs, a square filter is found to be approximately optimum. For longer distances, more-complicated filter shapes are predicted for the best noise reduction.

© 1999 Optical Society of America

OCIS Codes
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(270.6570) Quantum optics : Squeezed states

Dmitry Levandovsky, Michael Vasilyev, and Prem Kumar, "Perturbation theory of quantum solitons: continuum evolution and optimum squeezing by spectral filtering," Opt. Lett. 24, 43-45 (1999)

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