6 mW and 30 mW laser threshold for respectively 1 st and 2 nd Brillouin Stokes order in a Ge10As24Se68 chalcogenide fiber

A compact second-order Stokes Brillouin fiber laser made of microstructured chalcogenide glass is reported for the first time. This laser has very low optical pump-power threshold for Stokes conversion: 6 mW for first order and only 30 mW for second order with nonresonant pumping.