Abstract
Brillouin amplification and lasing are demonstrated in a single-mode As2Se3 chalcogenide fiber. A Brillouin gain of 42 dB was measured in a 4.9 m long fiber for a pump power of 68 mW at a 1.56 mum wavelength. In addition, a compact As2Se3 fiber-based Brillouin laser with a threshold power of 35 mW and a slope efficiency of 38% for nonresonant pumping is demonstrated.
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