Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 µm

Vilera Suárez, Mariafernanda and Garcia Tijero, Jose Manuel and Consoli Barone, Antonio and Aguilera Navarro, Santiago and Adamiec, Pawel and Esquivias Moscardo, Ignacio (2014). Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 µm. "Proceedings of SPIE, Semiconductor Lasers and Laser Dynamics VI", v. 9134 ; pp.. ISSN 0277-786X. https://doi.org/10.1117/12.2052350.

Description

Title: Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 µm
Author/s:
  • Vilera Suárez, Mariafernanda
  • Garcia Tijero, Jose Manuel
  • Consoli Barone, Antonio
  • Aguilera Navarro, Santiago
  • Adamiec, Pawel
  • Esquivias Moscardo, Ignacio
Item Type: Article
Título de Revista/Publicación: Proceedings of SPIE, Semiconductor Lasers and Laser Dynamics VI
Date: 2014
Volume: 9134
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Estructuras y Física de Edificación
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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 µm 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.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7313200BRITESPACEUNIVERSIDAD POLITECNICA DE MADRIDHigh Brightness Semiconductor Laser Sources for Space Applications in Earth Observation
Government of SpainTEC2012-38864-C03-02UnspecifiedUnspecifiedUnspecified

More information

Item ID: 37417
DC Identifier: http://oa.upm.es/37417/
OAI Identifier: oai:oa.upm.es:37417
DOI: 10.1117/12.2052350
Official URL: http://spie.org/Publications/Proceedings/Paper/10.1117/12.2052350
Deposited by: Memoria Investigacion
Deposited on: 26 Oct 2015 19:48
Last Modified: 26 Oct 2015 19:48
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