Title :
Modeling erbium-doped optical amplifiers by finite elements modal analysis
Author :
López-Barber, A.P. ; Hernández-Figueroa, H.E.
Author_Institution :
Univ. Fed. Fluminense, Niteroi, Brazil
Abstract :
An efficient model for erbium-doped optical amplifiers is presented in this paper. This model, based on an iterative finite-element stationary (modal analysis) scheme in conjunction with a suitable multi-level rate equations system, permits a direct computation of the complex propagation constant β. In addition, the use of absorption/emission cross section parameters permits the computation of the gain, related to Im(β), and induced nonlinearities, related to Re(β), over a wide band spectrum (1.40-1.65 μm). Since up-conversion and cross-relaxation effects are taken into account, the model is also able to analyze highly doped waveguides. Comparisons with other approaches and experimental data validate this model
Keywords :
erbium; finite element analysis; iterative methods; laser theory; modelling; optical fibre amplifiers; waveguide lasers; 1.4 to 1.65 micron; EDFA; Er doped fibre; Er-doped optical amplifiers; FEM; absorption/emission cross section parameters; complex propagation constant; cross-relaxation effects; finite elements modal analysis; gain; highly doped optical waveguides; induced nonlinearities; iterative FE stationary scheme; multi-level rate equations system; upconversion effects; Absorption; Erbium-doped fiber amplifier; Finite element methods; Modal analysis; Nonlinear equations; Optical amplifiers; Propagation constant; Semiconductor optical amplifiers; Stimulated emission; Wideband;
Conference_Titel :
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-5807-4
DOI :
10.1109/IMOC.1999.867113
