title: Broad bandwidth third-harmonic generation via four-wave mixing and stimulated Raman scattering in a microcavity.
abstract: We generate broad bandwidth visible light ranging from 498 to 611 nm via third-harmonic generation in a silica toroid microcavity. The silica toroid microcavity is fed with a continuous-wave input at a telecom wavelength, where third-harmonic generation follows the generation of an infrared Kerr comb via cascaded four-wave-mixing and stimulated Raman scattering effects. Thanks to these cascaded effects (four-wave mixing, stimulated Raman scattering, and third-harmonic generation) in an ultrahigh-Q microcavity, a broad bandwidth visible light is obtained. The visible light couples with the whispering gallery mode of the cavity by demonstrating the evanescent coupling of the generated visible light with a tapered fiber based on an add-drop configuration.
authors.forename: Akitoshi
authors.initials: A
authors.lastname: Chen-Jinnai
authors.forename: Takumi
authors.initials: T
authors.lastname: Kato
authors.forename: Shun
authors.initials: S
authors.lastname: Fujii
authors.forename: Takuma
authors.initials: T
authors.lastname: Nagano
authors.forename: Tomoya
authors.initials: T
authors.lastname: Kobatake
authors.forename: Takasumi
authors.initials: T
authors.lastname: Tanabe