Stimulated rayleigh-kerr and raman-kerr scattering in a liquid-core hollow fiber system

By using a liquid-core multimode hollow fiber system with a long gain-length (2.5 or 7 m), a superbroadening stimulated scattering added to the pump line and/or the several orders of Stokes-stimulated Raman scattering lines of the core medium can be observed. This kind of stimulated scattering is related to the optical Kerr (reorientation) effect and Raman-induced Kerr effect in a liquid consisting of anisotropic molecules. Experimental studies of hollow fiber filled with different liquid samples (carbon disulfide, benzene, carbon tetrachloride) are reported. A theoretical approach based on a photon scattering model of optical Kerr effect and Raman-induced Kerr effect is proposed to explain the principal features of our experimental results. The significance of stimulated Kerr scattering studies and their potential applications are discussed.