Self-sustained Q-switching in InGaAs quantum dot lasers

D. R. Matthews, H. D. Summers, P. M. Smowton, M. Hopkinson

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

Abstract

The performance of wide-band indium gallium arsenide (InGaAs) quantum dot lasers operated in a passively q-switched mode via the use of saturable absorber sections was investigated. At room temperatures the lasers exhibit multi-mode, self sustained pulsation and its frequency increases with the injection current up to a maximum value of 1.2 GHz. Its oscillation is synchronous across the spectrum and there are power fluctuations between the longitudinal modes which indicates that the dot ensemble behaves as a coupled systems.

Original languageEnglish (US)
Title of host publicationConference Digest - IEEE International Semiconductor Laser Conference
Pages75-76
Number of pages2
StatePublished - 2002
Event2002 IEEE 18th International Semiconductor Laser Conference: Conference Digest - Garmish, Germany
Duration: Sep 29 2002Oct 3 2002

Other

Other2002 IEEE 18th International Semiconductor Laser Conference: Conference Digest
CountryGermany
CityGarmish
Period9/29/0210/3/02

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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