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

Dmitry Levandovsky*, Michael Vasilyev, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)43-45
Number of pages3
JournalOptics Letters
Volume24
Issue number1
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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