Title :
Signal excited-state absorption in the L-band EDFA: Simulation and measurements
Author :
Bolshtyansky, Maxim ; Mandelbaum, Idan ; Pan, Fred
Author_Institution :
JDS Uniphase, Ewing, NJ, USA
Abstract :
Signal excited-state absorption (ESA) influences the performance of erbium-doped fiber amplifier (EDFA) in the L band. The influence is twofold: 1) ESA is responsible for signal absorption, and thus for noise figure increase in the long wavelength range of the L band and 2) ESA decreases inversion of erbium ions, and as a result, amplifier gain is decreased. Two methods of signal ESA measurement are discussed. It is shown that reliable data can be obtained through measurement and later used for accurate simulation of amplifier performance.
Keywords :
erbium; excited states; laser noise; optical fibre amplifiers; L-band EDFA; erbium-doped fiber amplifier; noise figure; signal excited-state absorption; Absorption; Erbium; Erbium-doped fiber amplifier; L-band; NIST; Noise figure; Optical amplifiers; Signal processing; Stimulated emission; Wavelength measurement; Erbium; modeling; optical fiber amplifiers; optical spectroscopy;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.853145
