title: Two-photon absorption as a limitation to all-optical switching.
abstract: Two-photon absorption can place a fundamental limitation on waveguide all-optical switching devices. We have derived a general criterion to describe this limitation that must be satisfied by all materials. As a specific example, we have experimentally evaluated this criterion for a lead-glass fiber.
authors.forename: V
authors.initials: V
authors.lastname: Mizrahi
authors.forename: K W
authors.initials: KW
authors.lastname: Delong
authors.forename: G I
authors.initials: GI
authors.lastname: Stegeman
authors.forename: M A
authors.initials: MA
authors.lastname: Saifi
authors.forename: M J
authors.initials: MJ
authors.lastname: Andrejco