Polarization dependent gain in Pr3+/Yb3+ doped fluoride fibre
Item Type:Conference Paper
Citation:Philippe S., Lynch M., Donegan J.F. `Polarization dependent gain in Pr3+/Yb3+ doped fluoride fibre? in Proceedings of the 10th International Conference on Transparent Optical Networks, Athens, Greece, Jun 22-26, 3, 2008, pp 223-226
Polarization dependent.pdf (published (publisher copy) peer-reviewed) 396.9Kb
Fibre amplifiers and lasers are formed by introducing rare-earth ions into silica and fluoride fibre material. The advantage of fluoride glasses is the much more efficient upconversion lasing in co-doped systems such as the Praseodymium/Ytterbium system used in this work. We investigate the gain properties of Pr3+/Yb3+ doped fluoride fibres with the ultimate goal of developing a blue polarized fibre laser. When a probe with state of polarization parallel to the major axis of the elliptical fibre core is injected, no rotation of its output polarization is observed with pump injection and a higher gain is achieved for a given pump power. Moreover if both probe and pump polarization are aligned with the major axis, the onset of the gain is found to occur at lower pump power.
Author: DONEGAN, JOHN FRANCIS
Type of material:Conference Paper
Availability:Full text available