Tunable, narrow-band light source in the 1.25 mu m region based on broad-area quantum dot lasers with feedback

A. Tierno, T. Ackemann

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12 Citations (Scopus)

Abstract

The coherence of broad-area laser diodes with quantum dot gain medium is improved by frequency-selective feedback. A linewidth of 5-10 GHz at power levels of 10-140 mW is achieved in the wavelength region around 1240 nm, where no other good semiconductor lasers are available. The tuning range is at least 20 nm.

Original languageEnglish
Pages (from-to)585-588
Number of pages4
JournalApplied Physics B: Lasers and Optics
Volume89
Issue number4
DOIs
Publication statusPublished - Dec 2007

Keywords

  • semiconductor lasers
  • linewidth
  • range
  • NM
  • performance
  • emission
  • diode

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