Title :
Rigorous numerical analysis of mode beating in tapered semiconductor amplifiers
Author :
Rahman, B.M.A. ; Abdallah, R. ; Rajarajan, M. ; Obayya, S.S.A. ; Grattan, K.T.V.
Author_Institution :
Sch. of Eng. & Math. Sci., City Univ., London, UK
fDate :
6/1/2005 12:00:00 AM
Abstract :
The evolution of the optical beam profile along a high-power tapered semiconductor amplifier has been demonstrated by using rigorous and full-vectorial numerical approaches, based on the finite-element method. Numerically simulated results indicate the generation of many higher order modes, and their interference with the fundamental mode causes a variation of the optical beam, both along the transverse and the axial directions, which could significantly modify the output beam quality.
Keywords :
finite element analysis; laser beams; laser modes; light interference; semiconductor optical amplifiers; finite-element method; full-vectorial numerical approaches; interference; mode beating; optical beam profile; tapered semiconductor amplifiers; Fiber nonlinear optics; Laser modes; Laser radar; Nonlinear optics; Numerical analysis; Optical beams; Power generation; Power lasers; Semiconductor lasers; Semiconductor optical amplifiers; Beam-propagation method (BPM); finite-element method (FEM); integrated optics devices; numerical analysis; semiconductor optical amplifiers (SOAs);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.849942
