CONTINUOUS-WAVE BISMUTH-DOPED FIBER LASERS PUMPED BY MULTIMODE DIODES
A.S. Vakhrushev1, S.V. Alyshev1, A.M. Khegai1, E.G. Firstova1, A.V. Kharakhordin1, K.E. Riumkin1, M.A. Melkumov1, A.A. Umnikov2, F.V. Afanasiev2, A.N. Guryanov2, S.V. Firstov1
1Prokhorov General Physics Institute, Russian Academy of Sciences, Dianov Fiber Optics Research Center, Moscow, Russia
2G.G.Devyatyh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, Nizhny Novgorod, Russia
Keywords: bismuth, luminescence, fiber, laser
Abstract
Recent results on continuous-wave bismuth-doped fiber lasers for a wavelength region of 1.3 - 1.5 μm pumped with laser diodes (multimode semiconductor laser diodes) are presented. A concept of the development of such devices by an example of the laser level scheme is considered. The main features of operation of cladding-pumped bismuth-doped fiber lasers and their performance characteristics (efficiency, output power, stability) are discussed. In addition, the possibility of optimizing the parameters of these devices by changing the geometry of the inner cladding and dual-wavelength pumping is considered.
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