Continuous-wave operation of type-I quantum well DFB laser diodes emitting in 3.4m wavelength range around room temperature

  • L. Naehle
  • , S. Belahsene
  • , M. Von Edlinger
  • , M. Fischer
  • , G. Boissier
  • , P. Grech
  • , G. Narcy
  • , A. Vicet
  • , Y. Rouillard
  • , J. Koeth
  • , L. Worschech

Research output: Contribution to journalArticlepeer-review

Abstract

Distributed feedback (DFB) laser diodes based on the concept of lateral metal gratings fabricated on type-I quantum well GaInAsSb/AlGaInAsSb material are presented. Monomode emission in the 3.4m wavelength range was achieved for the first time for a GaSb based DFB laser diode. Excellent sidemode suppression ratios beyond 30dB are demonstrated in combination with a modehop-free tuning range around 8.5nm. Using a specially developed polymer-free DFB processing route allowing improved heat dissipation, laser operation in continuous-wave mode was observed at temperatures up to around 20°C.

Original languageEnglish
Pages (from-to)46-47
Number of pages2
JournalElectronics Letters
Volume47
Issue number1
DOIs
Publication statusPublished - 6 Jan 2011
Externally publishedYes

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