Memorias de investigación
Communications at congresses:
Spectral Delay Algebraic Equation Approach for the Modeling of Broad Area Laser Diodes
Year:2015

Research Areas
  • Optics, electromagnetism,
  • Electronic technology and of the communications

Information
Abstract
The optical power that can be extracted from a semiconductor laser is limited due to catastrophic optical damage and one path to circumvent this limit is to increase the volume of the lasing mode. In the simplest case, this is achieved by increasing the lateral dimension. However, the emission profile of Broad-Area Laser Diodes (BALDs) usually presents a low quality and it is prone to instabilities. The large BALDs lateral dimension allows for many lateral modes that are nearly degenerated in gain which leads to multi-peaked near-fields and carrier-induced selffocusing might even lead to chaotic filamentation. Such a complex problem calls for an accurate and fast modeling approach. From the numerical point of view, the two-dimensional character of the field and of the carrier distributions combined with the large spectral width of the semiconductor gain curve result in models that are characterized by a huge number of degrees of freedom (DOF). Such large numbers of DOF demand an exceedingly large computing power for performing exhaustive simulations in the asymptotic regimes using standard Finite-Differences Time-Domain (FDTD) approaches. In addition, all the spatially resolved and time dependent approaches are hindered by the stiffness of laser dynamics: to properly account for the broad gain spectrum one must use an appropriately small time step dt, while the CFL numerical stability condition imposes an accordingly fine spatial step dz.
International
Si
Congress
CLEO/Europe-EQEC 2015
960
Place
Munich, Alemania
Reviewers
Si
ISBN/ISSN
2160-9020
Start Date
21/06/2015
End Date
25/06/2015
From page
0
To page
1
2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
Participants
  • Autor: J. Javaloyes Universitat de les Illes Baleares
  • Autor: Antonio Perez Serrano UPM
  • Autor: S. Balle Institut Mediterrani d¿Estudis Avanc¿ats, CSIC-UIB

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Fotónica Aplicada
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones