Self-similar propagation of parabolic pulses in normal-dispersion fiber amplifiers

Kruglov, V.I., Peacock, A.C., Harvey, J.D. and Dudley, J.M. (2002) Self-similar propagation of parabolic pulses in normal-dispersion fiber amplifiers. Journal of the Optical Society of America B, 19 (3), 461-469.

Record type: Article

Abstract

Pulse propagation in high-gain optical fiber amplifiers with normal group-velocity dispersion has been studied by self-similarity analysis of the nonlinear Schrödinger equation with gain. For an amplifier with a constant distributed gain, an exact asymptotic solution has been found that corresponds to a linearly chirped parabolic pulse that propagates self-similarly in the amplifier, subject to simple scaling rules. The evolution of an arbitrary input pulse to an asymptotic solution is associated with the development of low-amplitude wings on the parabolic pulse whose functional form has also been found by means of self-similarity analysis. These theoretical results have been confirmed with numerical simulations. A series of guidelines for the practical design of fiber amplifiers to operate in the asymptotic parabolic pulse regime has also been developed.

Text

46862-01.pdf - Version of Record

Restricted to Repository staff only

Request a copy