Lasing characteristics of InAs quantum dot microcavity lasers as a function of temperature and wavelength

Tian Yang, Adam Mock, John D. O'Brien, Samuel Lipson, Dennis G. Deppe

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A Strong temperature dependence of microdisk lasers and photonic crystal nanocavity lasers with InAs quantum dot active regions is reported. These lasers operate at 1.3 μm at room temperature under optical pumping conditions. T0, microdisk = 31 K. T0, photonic crystal nanocavity = 14 K. The lasing threshold dependence on the lasing wavelength is also reported. We observe a minimum absorbed threshold pump power of 9 μW. This temperature and wavelength dependent lasing behavior is explained qualitatively by a simple model which attributes the experimental observations predominantly to surface recombination at threshold and the high quality factors of these cavities.

Original languageEnglish
Pages (from-to)7281-7289
Number of pages9
JournalOptics Express
Volume15
Issue number12
DOIs
StatePublished - Jun 11 2007

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