Abstract
We will discuss in this presentation a novel and simple erbium-doped fiber laser configuration for multi-wavelength oscillation at room temperature, in which a few-mode fiber Bragg grating was used as the wavelength-selective component. This multi-wavelength laser can be switched between dual- and triple-wavelength operations by properly adjusting polarization controller in the cavity. By using stain- or temperature-induced few-mode fiber grating, we also demonstrate a tunable multi-wavelength laser based on the proposed scheme. This multi-wavelength laser has the advantage of simple configuration, high stability, low cost and stable operation at room temperature.
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