title: Enhanced-nonlinearity single-mode lead silicate optical fiber.
abstract: A single-mode lead silicate optical fiber has been fabricated to permit lower-power all-optical switching. The core glass has a nonlinear index of refraction eight times that of silica. The loss of the fiber is less than 2 dB/m. Over 177pi of phase shift was obtained, as measured by self-phase modulation, in a 29-cm length of fiber. At the 1-kW peak power level required to produce this large phase shift, two-photon absorption and stimulated Raman scattering did not significantly degrade the desired nonlinear behavior.
authors.forename: M A
authors.initials: MA
authors.lastname: Newhouse
authors.forename: D L
authors.initials: DL
authors.lastname: Weidman
authors.forename: D W
authors.initials: DW
authors.lastname: Hall