Memorias de investigación
Communications at congresses:
Longitudinal multimode dynamics in monolithically integrated master oscillator power amplifiers
Year:2015
Research Areas
  • Optics, electromagnetism,
  • Electronic technology and of the communications
Information
Abstract
We theoretically investigate a dynamical regime, experimentally observed in monolithically integrated master oscillator power amplifiers emitting at 1.5 ?m, consisting in large emission wavelength jumps of the device from the Bragg wavelength to that of the gain peak. Our analysis is based on numerical simulations by means of a travelling wave model that incorporates spatial effects such as spatial hole burning and coupled-cavity effects. Thermal effects are included by considering the optical response of the quantum well active medium within the quasi-equilibrium approximation at finite temperature, with a phenomenological description of the redshift of the gain peak and the changes in the background material refractive index by means of self- and cross-heating coefficients for both sections. We find that whereas the thermally-induced index changes are the responsible of the modal jumps between consecutive modes, the carrier-induced refractive index changes are the responsible of the jumps occurring between the Bragg wavelength and the gain peak.
International
Si
Congress
IX Reunion Española de Optoelectronica - OPTOEL 2015
970
Place
Salamanca, España
Reviewers
Si
ISBN/ISSN
978-84-606-9716-9
Start Date
13/07/2015
End Date
15/07/2015
From page
44
To page
48
Libro de Comunicaciones Optoel 2015
Participants
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
  • Departamento: Tecnología Fotónica y Bioingeniería
  • Departamento: Estructuras y Física de Edificación