title: Analytical relation between effective mode field area and waveguide dispersion in microstructure fibers.
abstract: For optical fibers exhibiting a radially symmetric refractive index profile, there exists an analytical relation that connects waveguide dispersion and the Petermann-II mode field radius. We extend the usefulness of this relation to the nonradially symmetric case of microstructure fibers in the anomalous dispersion regime, yielding a simple relation between dispersion and effective mode field area. Assuming a Gaussian mode distribution, we derive a fundamental upper limit for the effective mode field area that is required to obtain a certain amount of anomalous waveguide dispersion. This relation is demonstrated to show excellent agreement for fiber designs suited for supercontinuum generation and soliton lasers in the near infrared.
authors.affiliation: Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, 12489 Berlin, Germany.
authors.forename: Mathias
authors.initials: M
authors.lastname: Moenster
authors.forename: Günter
authors.initials: G
authors.lastname: Steinmeyer
authors.forename: Rumen
authors.initials: R
authors.lastname: Iliew
authors.forename: Falk
authors.initials: F
authors.lastname: Lederer
authors.forename: Klaus
authors.initials: K
authors.lastname: Petermann