title: Electrostrictive contribution to the intensity-dependent refractive index of optical fibers.
abstract: We show that electrostriction contributes significantly to self-action effects in optical fibers, adding 19% to the nonlinear refractive index for fields that vary slowly compared with the ~1-ns time scale of the acoustic response. Electrostriction also modifies the tensor nature of the nonlinear-optical response. The electrostrictive nonlinearity is the origin of the observed difference between measurements of n(2) with cw and mode-locked lasers.
authors.forename: E L
authors.initials: EL
authors.lastname: Buckland
authors.forename: R W
authors.initials: RW
authors.lastname: Boyd