Frequency shifting at fiber-optical event horizons: The effect of Raman deceleration

S. Robertson, U. Leonhardt

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

Pulses in fibers establish analogs of the event horizon [Philbin et al., Science 319, 1367 (2008)]. At a group-velocity horizon, the frequency of a probe wave is shifted. We present a theoretical model of this frequency shifting, taking into account the deceleration of the pulse caused by the Raman effect. The theory shows that the probe-wave spectrum is sensitive to details of the probe-pulse interaction. Our results indicate an additional loss mechanism in the experiment [Philbin et al., Science 319, 1367 (2008)] that has not been accounted for. Our analysis is also valid for more general cases of the interaction of dispersive waves with decelerated solitons.

Original languageEnglish
Number of pages12
JournalPhysical Review. A, Atomic, molecular, and optical physics
Volume81
Issue number6
DOIs
Publication statusPublished - 30 Jun 2010

Keywords

  • ZERO-DISPERSION WAVELENGTH
  • ULTRASHORT SOLITON PULSES
  • PHOTONIC-CRYSTAL FIBERS
  • OPTICAL FIBERS

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