Memorias de investigación
Research Publications in journals:
Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 ?m
Year:2014
Research Areas
  • Electronic technology and of the communications
Information
Abstract
Integrated master-oscillator power amplifiers driven under steady-state injection conditions are known to show a complex dynamics resulting in a variety of emission regimes. We present experimental results on the emission characteristics of a 1.5 ?m distributed feedback tapered master-oscillator power-amplifier in a wide range of steady-state injection conditions, showing different dynamic behaviors. The study combines the optical and radio-frequency spectra recorded under different levels of injected current into the master oscillator and the power amplifier sections. Under low injection current of the master oscillator the correlation between the optical and radio-frequency spectral maps allows to identify operation regimes in which the device emission arises from either the master oscillator mode or from the compound cavity modes allowed by the residual reflectance of the amplifier front facet. The quasi-periodic occurrence of these emission regimes as a function of the amplifier current is interpreted in terms of a thermally tuned competition between the modes of the master oscillator and the compound cavity modes. Under high injection current of the masteroscillator, two different regimes alternate quasi-periodically as a function of the injected current in the power amplifier: a stable regime with a single mode emission at the master oscillator frequency, and an unstable and complex self-pulsating regime showing strong peaks in the radio-frequency spectra as well as multiple frequencies in the optical spectra.
International
Si
JCR
Si
Title
Proc. of SPIE Vol. 9134, Semiconductor Lasers and Laser Dynamics VI
ISBN
0277-786X
Impact factor JCR
Impact info
Volume
9134
10.1117/12.2052350
Journal number
From page
91340N-1
To page
91340N-7
Month
SIN MES
Ranking
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Fotónica Aplicada
  • Departamento: Tecnología Fotónica y Bioingeniería
  • Departamento: Estructuras y Física de Edificación