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.
© 2006 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: July 19, 2006
Revised Manuscript: September 1, 2006
Manuscript Accepted: September 1, 2006
Published: October 26, 2006
Mathias Moenster, Günter Steinmeyer, Rumen Iliew, Falk Lederer, and Klaus Petermann, "Analytical relation between effective mode field area and waveguide dispersion in microstructure fibers," Opt. Lett. 31, 3249-3251 (2006)