Title :
ASE spectral slice gain-clamping of EDFA
Author :
Poopalan, P. ; Haoken, H. ; Tamchek, N. ; Harun, S.W. ; Subramaniam, T. ; Ahmad, H.B.
Author_Institution :
Dept. of Phys., Univ. of Malaya, Kuala Lumpur, Malaysia
Abstract :
An erbium-doped (Er-doped) fiber amplifier operating in the C-band is gain clamped, at about 26 dB with noise figures below 6 dB by multiple fiber Bragg gratings. These gratings are placed at the amplifier output with center wavelengths in between communication channels so that unwanted amplified spontaneous emission is removed but put to good use. A 0.5-dB gain compression point at -15 dBm of input signal powers for two simultaneous signal channels is also demonstrated.
Keywords :
Bragg gratings; erbium; gain control; optical fibre amplifiers; optical fibre communication; superradiance; EDFA; amplified spontaneous emission; communication channels; erbium-doped fiber amplifier; gain compression; gain control; multiple fiber Bragg gratings; spectral slice gain-clamping; Acoustic reflection; Bragg gratings; Erbium-doped fiber amplifier; Fiber gratings; Narrowband; Noise figure; Optical amplifiers; Optical fiber amplifiers; Power measurement; Spontaneous emission; Gain control; optical feedback; optical fiber amplifier;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836756
