Coherent Inc supplies a complete suite of fibres for the fabrication of fibre lasers. The suite includes rare-earth doped active-fibres mode-matched photosensitive fibres for fibre Bragg Gratings (FBG's), as well as passive fibres for the delivery of pump and laser light.
Their rare-earth fibre products are manufactured using a unique, proprietary doping method, which provides for high rare earth concentration with excellent dopant homogeneity and uniformity.
Evaluation of these active fibres reveals excellent performance in regard to quantum conversion efficiency, hydrogen aging, and humidity and temperature resistance.
Custom designs are also available.
The multimode core diameter of these low-loss high NA fibres can be customised to any value between 50 and 2000 microns to suit specific fibre laser designs.