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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 2, Iss. 3 — Feb. 2, 1998
  • pp: 77–83

Propagation of quantum properties of sub-picosecond solitons in a fiber

S. Spälter, M. Burk, U. Strößner, A. Sizmann, and G. Leuchs  »View Author Affiliations

Optics Express, Vol. 2, Issue 3, pp. 77-83 (1998)

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We present new results on photon number squeezing of spectrally filtered solitons in fibers. The impact of frequency low-, high-, and bandpass filtering on noise reduction has been measured as a function of fiber length for 130-fs pulses close to the soliton energy. For short fibers our results agree qualitatively with theoretical predictions. For longer fibers, however, the measured squeezing increases to an unexpectedly large value. Spectral filtering of a strongly Raman-shifted, higher energy pulse squeezed the directly detected photocurrent fluctuations down to 3.8±0.2 dB (59%) below the shot noise level. The measured noise reductions are broadband from 5 to 90 MHz.

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OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(270.5290) Quantum optics : Photon statistics
(270.5530) Quantum optics : Pulse propagation and temporal solitons
(270.6570) Quantum optics : Squeezed states

ToC Category:
Focus Issue: Experiments on generation and application of quantum light states

Original Manuscript: November 14, 1997
Published: February 2, 1998

Stefan Spaelter, M. Burk, Ulrich Stroessner, Andreas Sizmann, and Gerd Leuchs, "Propagation of quantum properties of sub-picosecond solitons in a fiber," Opt. Express 2, 77-83 (1998)

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