Mid-infrared supercontinuum generation in concatenated fluoride and chalcogenide glass fibers covering more than three octaves

Supercontinuum is generated in concatenated ZBLAN and As2Se3 fibers. Initially, a 0.9-4.1mm supercontinuum is obtained by pumping the ZBLAN fiber with a Tm laser, which then continues to broaden to 0.9-9mm in As2Se3 fiber.