Title :
Modeling of patterned contacts in tapered lasers
Author :
Borruel, Luis ; Sujecki, Slawomir ; Moreno, Pablo ; Wykes, James ; Sewell, Phillip ; Benson, Trevor M. ; Larkins, Eric C. ; Esquivias, Ignacio
Author_Institution :
Departamento de Tecnologia Fotonica, Univ. Politecnica de Madrid, Spain
Abstract :
We study the influence of a patterned contact design on the beam properties of high-brightness tapered lasers. A simple approach to simulate patterned injection has been developed and introduced into a quasi-three-dimensional tapered laser model. The method is applied to tapered lasers, whose performance is limited by two different mechanisms: self-focusing and poor modal filtering. The results show an improvement in beam quality in comparison to standard devices.
Keywords :
brightness; electrical contacts; laser beams; laser cavity resonators; optical self-focusing; semiconductor device models; semiconductor lasers; spatial filters; beam properties; high-brightness lasers; modal filtering; patterned contact design; patterned contacts; patterned injection; quasithree-dimensional tapered laser model; self-focusing; tapered lasers; unstable cavity lasers; Diode lasers; Filtering; Laser beams; Laser modes; Optical beams; Optical filters; Optical resonators; Shape; Thermal degradation; Waveguide lasers; High-brightness lasers; numerical simulations; patterned contacts; unstable cavity lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2004.834586
