Isolator - free unidirectional thulium - doped fiber laser


We report the first demonstration of a unidirectional, isolator-free 2-mm thulium-doped fiber (TDF) laser, relying on the properties of the theta cavity (ring resonator with S-shaped feedback). The core pumped theta cavity TDF laser provides sub-Watt output power with a slope efficiency of 25%, a 2 dB flat tuning range of 1900–2050 nm, and a linewidth of 0… (More)


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@inproceedings{KharitonovIsolatorF, title={Isolator - free unidirectional thulium - doped fiber laser}, author={Svyatoslav Kharitonov and Camille - Sophie Br{\`e}s} }