Claudia Aichele

TL;DR: In this paper, an overview of the capabilities and limitations of established vapor deposition fiber preform technologies, and new techniques for improved and extended doping properties in fiber preparation are discussed, such as a powder-based process (REPUSIL) and an optimized glass melting method to overcome the limits of conventional vapor deposition methods concerning the volume fabrication of rare earth (RE)-doped quartz and high silica glasses.

TL;DR: In this paper, an alternative technique for the preparation of ytterbium (Yb)-doped silica fibers and their characteristics compared to the conventional modified chemical vapor deposition (MCVD) process in combination with solution doping and powder sinter technology (REPUSIL) was reported.

TL;DR: A Fabry-Perot cavity based on a new silica tube design, characterized in strain and temperature, is proposed in order to improve the sensing head performance.

TL;DR: By developing a short adiabatic taper, robust seed coupling is achieved by using this Yb-doped LMA fiber as final stage of a nanosecond fiber Master Oscillator Power Amplifier (MOPA) system while maintaining near diffraction limited beam quality by preferential excitation of the fundamental mode.

TL;DR: In this paper, the optical loss behavior of index guiding PC fibers made from high purity silica was investigated with regard to the preform preparation steps and drawing procedure, and the optical attenuation in the 1.4 µm region is caused mostly by incorporation of hydroxide groups during PC pre-form preparation.