A single-/dual-wavelength switchable and tunable erbium-doped fiber laser（EDFL） with super-narrow linewidth has been proposed and experimentally demonstrated at room temperature. The fiber laser is based on a compound cavity simply composed of a ring main cavity and a two-ring subring cavity（TR-SC）. Regardless of single- or dual-wavelength operation, the EDFL could always work well in single-longitudinal-mode（SLM） state at every oscillating wavelength. In dual-wavelength operation, the spacing c... 

【文章來源】：Optoelectronics Letters. 2016,12(02)EI

【文章頁數(shù)】：5 頁

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