Chalcogenide glass Raman fiber laser

We report the operation of a chalcogenide glass Raman fiber laser. To mitigate photoinduced effects and minimize impurity absorption, a 2051nm Tm3+-doped silica fiber laser was employed as the pump source. Vibrations between the polymerlike layers comprising the glass produced first Stokes emission at 2062nm, an output power of 0.64W, and a slope efficiency of ∼66%. Bond bending and bond stretching vibrations within the layers simultaneously produced first Stokes output at 2102nm (0.2W) and 2166nm (16mW), respectively. Second Stokes output at 2074nm was produced when the fiber length was extended.