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An Erbium-Ytterbium co-doped random fiber laser (EYRFL) operating at 1550 nm is demonstrated for the first time. The laser cavity consists of a 5-m-long Er/Yb co-doped fiber and a 2-km-long single-mode fiber that provides random distributed feedback. We experimentally achieve 2.14 W of 1550 nm random lasing at 9.62W of 976 nm LD pump power. The laser exhibits a linear output with the slope efficiency...
A multi-wavelength random distributed feedback fiber laser consisting of a length of erbium-doped fiber, a 20-km-long single-mode fiber and a Sagnac loop mirror was demonstrated experimentally. Under the pump power was changed from 30 to 180 mW, variable channel number of 2 to 8 was achieved, meaning that wavelength competition caused by homogenous gain broadening in erbium-doped fiber was significantly...
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