Pulse evolution in nonlinear optical fibers with sliding-frequency filters

J J Beech-Brandt, N F Smyth

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The effect of fiber loss, amplification, and sliding-frequency filters on the evolution of optical pulses in nonlinear optical fibers is considered, this evolution being governed by a perturbed nonlinear Schrodinger (NLS) equation. Approximate ordinary differential equations (ODE's) governing the pulse evolution are obtained using conservation and moment equations for the perturbed NLS equation together with a trial function incorporating a solitonlike pulse with independently varying amplitude and width. In addition, the trial function incorporates the interaction between the pulse and the dispersive radiation shed as the pulse evolves. This interaction must be included in order to obtain approximate ODE's whose solutions are in good agreement with full numerical solutions of the governing perturbed NLS equation. The solutions of the approximate ODE's are compared with full numerical solutions of the perturbed NLS equation and very good agreement is found.

Original languageEnglish
Article number056604
Pages (from-to)-
Number of pages11
JournalPhysical Review E
Volume6305
Issue number5
Publication statusPublished - May 2001

Keywords / Materials (for Non-textual outputs)

  • GUIDING FILTERS
  • PHASE-SHIFT
  • SOLITON
  • TRANSMISSION
  • PROPAGATION
  • RADIATION
  • STABILITY
  • WAVES

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