Measurement of the Raman gain coefficient via inverse Raman scattering

摘要

We report a new characterization technique of Raman gain materials through inverse Raman scattering (IRS). The technique is applied to silica glass optical fiber and several liquids in liquid-core optical fiber (LCOF). We obtain good quantitative agreement with a conventional technique that estimates the gain coefficient from steady-state Raman scattering measurements. Our results demonstrate that IRS is a viable tool to characterize new materials for ultralow-power nonlinear optics and all-optical switching.