High-order stimulated Raman scattering and nonlinear red-shifted broadening in benzyl alcohol core optical fiber.
Six orders of Stokes lines and the first-order anti-Stokes line were observed we believe for the first time, in a benzyl alcohol liquid core optical fiber. All the Stokes lines were asymmetrically broadened favoring the lower frequencies. The blue-shifted broadening was only a few percent of the amount of the red-shifted broadening, and the broadening of the fifty-order Stokes line was so broadened to exceed the characteristic Raman frequency shift, 1000 cm(-1), to connect with the sixth-order Stokes line. The asymmetric broadening was discussed to be mainly due to the effect of the stimulated Rayleigh wing scattering.
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