Title :
Gain and noise properties of small-signal erbium-doped fiber amplifiers pumped in the 980-nm band
Author :
Pedersen, B. ; Chirravuri, J. ; Miniscalco, W.J.
Author_Institution :
Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
6/1/1992 12:00:00 AM
Abstract :
The authors have experimentally and theoretically investigated the effects of detuning the pump wavelength on the gain and noise properties of small-signal, erbium-doped fiber amplifiers codirectionally pumped in the 980-nm band. While the pump wavelength can be varied over a wide range with little impact on the gain, a noise penalty is incurred. For amplifiers saturated by amplified spontaneous emission, it is possible to increase the gain by detuning the pump wavelength.<>
Keywords :
erbium; fibre lasers; optical pumping; optical saturation; superradiance; 980 nm; Er doped fibre amplifier gain; IR; amplified spontaneous emission; codirectionally pumped; detuning; laser gain; noise penalty; noise properties; pump wavelength; pump wavelength detuning; saturated amplifiers; small-signal; Absorption; Erbium-doped fiber amplifier; Laser excitation; Laser noise; Noise figure; Noise measurement; Optical fiber theory; Pump lasers; Spontaneous emission; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
