Optical fibers and optical fiber devices with dispersion

摘要

Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a single higher order mode (HOM) of the fiber, typically the LP 02 mode. The optical fibers also preferably have substantial separation between the effective indices of the HOM and any other mode.