Tunable self-pulsations in a quantum-dot external-cavity laser emitting across the excited state

Stephanie White, Maria Ana Cataluna

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Self-pulsations have previously been observed in single-section quantum-dot (QD) lasers at low MHz frequencies1 and higher GHz frequencies2. In this contribution, we present the first demonstration of SP involving laser emission solely in the excited-state transition. This was achieved with a single-section amplifier at the core of the laser, thus in the absence of a separate saturable absorber section. SPs had a frequency of ∼3.8 GHz, tunable via current variation. The use of an external cavity and the tunability afforded by this setup also allowed spectrally tunable SPs between 1160 and 1196 nm, which enabled further investigation of its dynamics (including bistability).

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference (CLEO/Europe-EQEC)
PublisherIEEE
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - 17 Oct 2019

ASJC Scopus subject areas

  • Spectroscopy
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications

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