Archive > Volume 11 Issue 5 > 2015,11(5):325-328. DOI:10.1007/s11801-015-5109-8 CSTR:[cstr] Prev Next
Switchable dual-wavelength erbium-doped fiber laser with tunable wavelength
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Abstract:
A switchable dual-wavelength erbium-doped fiber laser (EDFL) with tunable wavelength is demonstrated. The ring cavity consists of two branches with a fiber Bragg grating (FBG) and a spherical-shape structure as fiber filters, respectively. By adjusting the variable optical attenuator (VOA), the laser can be switched between the single-wavelength mode and the dual-wavelength mode. The spherical-shape structure has good sensitivity to the temperature. When the temperature changes from 30 °C to 190 °C, the central wavelength of the EDFL generated by the branch of spherical-shape structure varies from 1 551.6 nm to 1 561.8 nm, which means that the wavelength interval is tunable.
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This work has been supported by the National High Technology Research and Development Program of China (No.2013AA014201), and the Tianjin Youth Science Foundation (No.13JCQNJC01800).
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