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

Volume

23

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2124

Lastpage

2130

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);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2005.849942

Filename

1440521