kW-class fiber laser prepared using an alternative solution doping MCVD-technique

The growing demand for high power fiber lasers and the need for higher and higher cw-output powers pose new challenges to fiber technologists. The fabrication of suitable low-NA fibers in the materials system of choice, Yb, Al, P-doped silica, is challenging. Hence, new, facilitating fabrication methods are required. In this contribution we report on fabrication principles of a promising alternative solution doping method — the so called all-solution doping method [1].