Pask, H.M., Carman, R.J., Hanna, D.C., Tropper, A.C., Mackechnie, C.J., Barber, P.R. and Dawes, J.M.
Ytterbium-doped silica fibre lasers: versatile sources for the 1-1.2µm region
IEEE Journal of Selected Topics in Quantum Electronics, 1, (1), . (doi:10.1109/2944.468377).
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Ytterbium-doped silica fibers exhibit very broad absorption and emission bands, from ~800 nm to ~1064 nm for absorption and ~970 nm to ~1200 nm for emission. The simplicity of the level structure provides freedom from unwanted processes such as excited state absorption, multiphonon nonradiative decay, and concentration quenching. These fiber lasers therefore offer a very efficient and convenient means of wavelength conversion from a wide variety of pump lasers, including AlGaAs and InGaAs diodes and Nd:YAG lasers. Efficient operation with narrow linewidth at any wavelength in the emission range can be conveniently achieved using fiber gratings. A wide range of application for these sources can he anticipated. In this paper, the capabilities of this versatile source are reviewed. Analytical procedures and numerical data are presented to enable design choices to be made for the wide range of operating conditions.
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