Yuan Zhu

Very large mode area ytterbium fiber amplifier with aluminum-doped pump cladding made by powder sinter technology

Jens Kobelke, Hartmut Bartelt, Matthias Jäger, 2014 .

Yb3+-doped rod-type amplifiers with local adiabatic tapers for peak power scaling and beam quality improvement

Jens Kobelke, Hartmut Bartelt, Matthias Jäger, 2017 .

Yb-doped large mode area fiber for beam quality improvement using local adiabatic tapers with reduced dopant diffusion.

Jens Kobelke, Claudia Aichele, Hartmut Bartelt, 2018, Optics express.