Excess linewidth broadening in wavelength-tunable laser diodes

M. C. Amann, R. Schimpe

Research output: Contribution to journalArticlepeer-review

78 Scopus citations


Injection-recombination shot noise in the tuning region is identified as significant linewidth broadening mechanism in wavelength-tunable laser diodes. Depending on the tuning efficiency this power independent linewidth broadening is typically around 4-20 MHz. Useful formulas for the evaluation of this broadening and design rules for an improvement of the devices are given.

Original languageEnglish
Pages (from-to)279-280
Number of pages2
JournalElectronics Letters
Issue number5
StatePublished - Jan 1990
Externally publishedYes


  • Lasers and laser applications
  • Optical communications


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