Title :
Erbium doped fibres for efficient optical amplifiers
Author :
Ainslie, B.J. ; Craig-Ryan, S.P. ; Davey, S.T. ; Armitage, J.R. ; Atkins, C.G. ; Massicott, J.F. ; Wyatt, R.
Author_Institution :
British Telecom Res. Labs., Martlesham Heath, Ipswich, UK
fDate :
8/1/1990 12:00:00 AM
Abstract :
The authors report that erbium doped Al2O3-P 2O5-SiO2 based fibres can be used as efficient optical amplifiers provided the concentration of erbium is kept low. Small signal gains of 35 dB at 1.55 μm and a 3 dB bandwidth of 35 nm have been measured using 70 mW pump power at 1.475 μm. Even when driven heavily into saturation, 16 dB gain was achieved with a resultant signal output power of 15.6 dBm
Keywords :
aluminosilicate glasses; erbium; fibre optics; optical glass; optical saturation; phosphosilicate glasses; solid lasers; 1.475 micron; 1.55 micron; 16 dB; 35 dB; 70 mW; Al2O3-P2O5-SiO2 :Er; Er concentration; Er doped fibres; efficient optical amplifiers; pump power; saturation; signal output power; small signal gains;
Journal_Title :
Optoelectronics, IEE Proceedings J
