title: Field-flattened, ring-like propagation modes.
abstract: We present a method for designing optical fibers that support field-flattened, ring-like higher order modes, and show that the effective and group indices of its modes can be tuned by adjusting the widths of the guide's field-flattened layers or the average index of certain groups of layers. The approach provides a path to fibers that have simultaneously large mode areas and large separations between the propagation constants of their modes.
authors.affiliation: Lawrence Livermore National Laboratory, L-491, PO Box 808, Livermore, California 94551, USA. messerly2@LLNL.gov
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Messerly
authors.forename: Paul H
authors.initials: PH
authors.lastname: Pax
authors.forename: Jay W
authors.initials: JW
authors.lastname: Dawson
authors.forename: Raymond J
authors.initials: RJ
authors.lastname: Beach
authors.forename: John E
authors.initials: JE
authors.lastname: Heebner
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008962:Models, Theoretical; D012542:Scattering, Radiation