Effective Numerical Algorithm for Simulations of Beam Stabilization in Broad Area Semiconductor Lasers and Amplifiers

Mathematical Modelling and Analysis

Raimondas Čiegis¹  Mindaugas Radziunas² 

[1] Vilnius Gediminas Technical University Saul_etekio al. 11, LT-10223 Vilnius, Lithuania;Weierstrass Institute Mohrenstrasse 39, 10117 Berlin, Germany;

关键词: broad area device;    traveling wave model;    numerical scheme;    parallel algorithm;    simulation;    beam improvement;   

DOI  :  10.3846/13926292.2014.979453

来源: DOAJ

【 摘 要 】

A 2 + 1 dimensional PDE traveling wave model describing spatial-lateral dynamics of edge-emitting broad area semiconductor devices is considered. A numerical scheme based on a split-step Fourier method is presented. The domain decomposition method is used to parallelize the sequential algorithm. The parallel algorithm is implemented by using Message Passing Interface system, results of computational experiments are presented and the scalability of the algorithm is analyzed. Simulations of the model equations are used for optimizing of existing devices with respect to the emitted beam quality, as well as for creating and testing of novel device design concepts.

【 授权许可】

Unknown