|Publication No: 532||Search all ORC publications|
Yb3+ sensitised Er3+ doped, silica-based optical fibre with ultra-high transfer efficiency
J.E.Townsend, W.L.Barnes, S.G.Grubb*
Optoelectronic Research Centre, University of Southampton, U.K.
* Amoco Technology Company, Naperville, Chicago, 1160566, USA
Efficient 1.54μm emission under 1064nn excitation of Er3+ codoped silica fibre is reported. The energy transfer efficiency from Yb3+ to Er3+, of at least 85%, even under high inversion, is comparable to that in multicomponent glass fibres. Fibre design parameters are discussed and results presented. Small signal gain of ~45 dB is also measured and a power amplifier giving 145mW output power demonstrated.
Materials Research Society (MRS) Symposium Proceedings Optical Waveguide Materials Eds M.J.Broer G.H.Sigel Jr. R.T.Kersten & H.Kawazoe Boston Dec (1991) Vol.244 pp.143-146
Copyright University of Southampton 2006