Title :
Erbium-doped fiber amplifier with 54 dB gain and 3.1 dB noise figures
Author :
Laming, Richard I. ; Zervas, Michael N. ; Payne, David N.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
It is shown that for practical pump powers (<100 mW) a combination of high gain (>33 dB) and low noise figure (3 dB) cannot simultaneously be achieved with a conventional codirectionally pumped EDFA. However, using a codirectionally pumped composite EDFA incorporating an isolator overcomes the problem, and an amplifier with 51 dB (54 dB) gain and 3.1 dB noise figure (NF) for only 45 mW (93 mW) of pump power is demonstrated.<>
Keywords :
erbium; fibre lasers; optical isolators; optical pumping; 100 mW; 33 dB; 54 dB; Er-doped fibre amplifiers; codirectionally pumped composite EDFA; high gain; laser pumping; noise figures; optical isolators; practical pump powers; Erbium-doped fiber amplifier; Gain; High power amplifiers; Isolators; Low-noise amplifiers; Noise figure; Noise measurement; Optical amplifiers; Optical noise; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
