title: Saturation splitting in the spectrum of resonant degenerate four-wave mixing.
abstract: The spectrum of degenerate four-wave mixing on a homogeneously broadened one-photon transition is shown to exhibit line splitting when the pump-intensity difference exceeds the saturation intensity. The splitting arises from a saturation mechanism reinforced by the pump imbalance. Experimental evidence of this effect, using SF(6) as the nonlinear medium, is presented.
authors.forename: G P
authors.initials: GP
authors.lastname: Agrawal
authors.forename: A
authors.initials: A
authors.lastname: Van Lerberghe
authors.forename: P
authors.initials: P
authors.lastname: Aubourg
authors.forename: J L
authors.initials: JL
authors.lastname: Boulnois