Title :
High gain Er3+-doped fibre amplifier pumped by 820 nm GaAlAs laser diodes
Author :
Suzuki, K. ; Kimura, Y. ; Nakazawa, M.
Author_Institution :
NTT Transmission Syst. Labs., Ibaraki, Japan
fDate :
6/21/1990 12:00:00 AM
Abstract :
An optical gain of 22 dB at 1.535 mu m is obtained in an Er3+-doped fibre amplifier for a total pump power of 54 mW. The Er3+ doping concentration is 34 p.p.m., and the pumping source is GaAlAs laser diodes at 820 nm. By using an Er3+ fibre with a doping concentration of 390 p.p.m., the maximum gain is as high as 29.4 dB for a pump power of 83 mW.
Keywords :
erbium; fibre optics; germanate glasses; laser transitions; optical communication equipment; optical fibres; optical pumping; silicon compounds; solid lasers; 1.535 micron; 22 to 29.4 dB; 54 to 83 mW; 820 nm; Er 3+-doped fibre amplifier; GaAlAs laser diodes; GeO 2-SiO 2:Er 3+; optical fibre communication; pump power; pumping source; solid laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900618
