Title :
Generalised formula for optical-amplifier noise and its application to erbium-doped fibre amplifiers
Author_Institution :
Dept. of Electron. Eng., Tokyo Univ., Japan
Abstract :
A rigorous treatment for calculating the noise performance of optical fibre amplifiers, which includes nonuniform distributions of the pump intensity, the gain coefficient, and the spontaneous emission factor is presented. The noise figure of erbium-doped fibre amplifiers is evaluated under various operating conditions using this method.
Keywords :
erbium; fibre lasers; noise; optical pumping; superradiance; gain coefficient; noise figure; noise performance; nonuniform distributions; operating conditions; optical fibre amplifiers; optical-amplifier noise; pump intensity; spontaneous emission factor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901191
