title: Wavelength-maintaining polarization-insensitive all-optical 3R regenerator.
abstract: High-rate long-haul fiber communications systems will require high-speed efficient signal regeneration. By introducing a simple semiconductor-optical-amplifier wavelength converter into the folded ultrafast nonlinear interferometer, we demonstrate a polarization-insensitive wavelength-maintaining 3R all-optical regenerator. The extinction ratio between the on and off states is 21 dB. Bit-error rate data show no error floor and <0.3-dB power penalty when compared with a baseline measurement. Moreover, changes in input polarization cause no change in performance. The regenerator maintained a constant polarization and constant output power, independent of the input polarization.
authors.forename: Shelby
authors.initials: S
authors.lastname: Savage
authors.forename: Bryan
authors.initials: B
authors.lastname: Robinson
authors.forename: Scott
authors.initials: S
authors.lastname: Hamilton
authors.forename: Erich
authors.initials: E
authors.lastname: Ippen