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Wide wavelength-tuning of a double-clad Yb3+-doped fiber laser based on a fiber Bragg grating array

Wiley-VCH Verlag
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We report wide wavelength tuning in a double-clad ytterbium-doped fiber laser. The laser cavity consists of an array of broadband high-reflection fiber Bragg gratings and a bulk grating as output coupler and wavelength selection element. The proposed fiber laser configuration combines low intra-cavity loss of fiber Bragg grating mirrors with wide wavelength tuning of bulk gratings.We demonstrate >70 nm wavelength tuning range, limited only by the available fiber Bragg gratings.

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