title: Ultraviolet-light generation in nitrogen-doped silica fiber.
abstract: Nonlinear light transformations were observed in a nitrogen-doped silica fiber pumped with a Nd:YAG laser (lambda=1.06 microm) . Light generation in the spectral range 355-430nm was obtained with an efficiency of up to 2x10(-4) . The UV light was found to be the result of third-harmonic generation, stimulated Raman scattering of the third harmonic, and third-harmonic generation from the Stokes components of the pump light. Lasing based on the color centers of nitrogen-doped silica was observed in the range 380-430nm.
authors.forename: I A
authors.initials: IA
authors.lastname: Bufetov
authors.forename: M V
authors.initials: MV
authors.lastname: Grekov
authors.forename: K M
authors.initials: KM
authors.lastname: Golant
authors.forename: E M
authors.initials: EM
authors.lastname: Dianov
authors.forename: R R
authors.initials: RR
authors.lastname: Khrapko