Nanocrystal-doped fibres using glass powder doping – towards new laser transitions in fibre lasers

Optical fibres have been instrumental in establishing the internet and have also revolutionized laser materials processing using fibre lasers. Even fibre sensors have become an important topic, despite silica not offering a wealth of physical effects for detection. Thus, incorporating new optical materials as nanoparticles into fibres for new functionalities has recently become a hot research topic [1] . Our team (funded by the European FET Open project NCLas) investigates the introduction of nanoscale laser crystallites into the core of optical fibres using the glass powder doping method as describes in [1] .