title: Nonlinear phase shifts of modulated light waves with slow and superluminal group delay in stimulated Brillouin scattering.
abstract: Brillouin amplification with counterpropagating modulated pump and Stokes light leads to nonlinear modulation-phase shifts of the interacting intensity waves. This is due to a partial transformation of the nonmodulated light component at the input into modulated light at the output as a result of a mixing process with the counterpropagating modulated component of the pump and results in an advance or delay of the input modulation. This occurs for interactions over less than half of a modulation wavelength. Milliwatts of power in a kilometer of standard single-mode fiber give significant tunability of the modulation phase.
authors.affiliation: Department of Electrical and Electronics Engineering, Ariel University Center of Samaria, Ariel, Israel.
authors.forename: Tal
authors.initials: T
authors.lastname: Arditi
authors.forename: Er'el
authors.initials: E
authors.lastname: Granot
authors.forename: Shmuel
authors.initials: S
authors.lastname: Sternklar