Title :
An analytical formulation of the transient response of gain-clamped EDFA´s
Author :
Kai Song ; Lauder, R.D.T.
Author_Institution :
Photonics Res. Lab., Melbourne Univ., Parkville, Vic., Australia
Abstract :
A small-signal analytical model describing transients within a gain-clamped erbium-doped fiber amplifier is presented. The model gives an accurate description of the relaxation oscillations experienced by surviving channels when there are small input variations to the amplifier. The model also provides good approximations for medium input variations, conditional on the amplifier being highly saturated by the gain-clamping lasing signal. This is demonstrated by agreement between our analytical model and numerical simulations.
Keywords :
erbium; laser theory; optical fibre amplifiers; optical fibre theory; analytical formulation; gain-clamped EDFA; gain-clamped erbium-doped fiber amplifier; gain-clamping lasing signal; good approximation; highly saturated; medium input variations; relaxation oscillations; small-signal analytical model; transient response; transients; Analytical models; Erbium-doped fiber amplifier; Optical amplifiers; Optical propagation; Optical pumping; Optical saturation; Semiconductor optical amplifiers; Signal analysis; Stimulated emission; Transient response;
Journal_Title :
Photonics Technology Letters, IEEE
