Efficient coupling of heat-flow and electro-optical models for simulation of dynamics in high-power broad-area semiconductor lasers

The aim of the work presented here is an efficient coupling of a heat flow (HF) model defined on multiple vertical-lateral subdomains and a dynamic electro-optical (EO) model acting in the longitudinal-lateral plane. Due to the different time scales, we propose an iterative coupling of the dynamic E...

Full description

Saved in:
Bibliographic Details
Main Authors: Radziunas, M., Fuhrmann, J., Zeghuzi, A., Wunsche, H.-J., Koprucki, Th, Wenzel, H., Bandelow, U.
Format: Conference Proceeding
Language:English
Subjects:
Couplings
Hafnium
Heating systems
Laser modes
Mathematical model
Refractive index
Temperature distribution
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of the work presented here is an efficient coupling of a heat flow (HF) model defined on multiple vertical-lateral subdomains and a dynamic electro-optical (EO) model acting in the longitudinal-lateral plane. Due to the different time scales, we propose an iterative coupling of the dynamic EO and static HF models. HF-solver calculates temperature and thermally-induced refractive index change within the active region. The EO-solver exploits these distributions and provides time-averaged field intensities, quasi-Fermi potentials, carrier densities, and bias current. All these time-averaged distributions are used again by the HF-solver for generation of the heat source.
ISSN:2158-3242
DOI:10.1109/NUSOD.2018.8570247