Title :
Optimum pumping scheme of dual-stage triple-pass erbium-doped fiber amplifier
Author :
Mahdi, M.A. ; Khairi, K.A. ; Bouzid, B. ; Abdullah, M.K.
Author_Institution :
Dept. of Comput. & Commun. Syst. Eng., Univ. Putra Malaysia, Selangor, Malaysia
Abstract :
The optimization of pump power for a new configuration of dual-stage triple-pass Erbium-doped fiber amplifier is successfully demonstrated. This configuration incorporates two-stage amplifiers with two independent 980-nm pump lasers. The first-stage amplifier consists of double-pass amplification to obtain high gains and the second-stage amplifier is single-pass amplification in backward pumping schemes. The maximum gain that obtained in the experiment does not have the minimum noise figure. Therefore, the optimum operating point is defined based on the ratio of gain to noise figure. The relationship between the pump-power distributions in the proposed configuration shows that the optimum pump ratio of the first-stage pump laser to the total pump power is around 0.3 to 0.5 depending on the signal powers.
Keywords :
erbium; optical design techniques; optical fibre amplifiers; optical pumping; optical transmitters; optimisation; wavelength division multiplexing; 980 nm; backward pumping schemes; double-pass amplification; dual-stage triple-pass amplifier; erbium-doped fiber amplifier; optical communication; optical pumping; optimum pumping scheme; pump lasers; second-stage amplifier; single-pass amplification; wavelength-division multiplexing; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Laser excitation; Laser noise; Noise figure; Optical amplifiers; Optical filters; Optical noise; Optical pumping; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.821059
