Title :
Low noise operation of Er3+ doped silica fibre amplifier around 1.6 mu m
Author :
Wyatt, R. ; Ainslie, B.J.
Abstract :
A novel method of using two pump wavelengths to achieve high gains and enhanced noise performance in the 1.6 mu m Er3+ doped fibre amplifier is demonstrated. By launching 82 mW of power at 1.48 mu m and up to 1 mW at 1.555 mu m, a maximum gain of 31 dB is achieved at 1.57 mu m with gains in excess of 24 dB available between 1.57 and 1.605 mu m. The noise figure is maintained below 5 dB over this bandwidth, close to the theoretical minimum for a 1.48 mu m pumped amplifier.
Keywords :
electron device noise; erbium; fibre lasers; laser transitions; optical communication equipment; optical pumping; silicon compounds; 1 mW; 1.48 to 1.605 micron; 24 dB; 31 dB; 5 dB; 82 mW; Er 3+ doped fibre; SiO 2:Er 3+; fibre amplifier; low noise operation; pump wavelengths; pumped amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921231
