Nanobeam photonic crystal cavity quantum dot laser.

Journal Article

The lasing behavior of one dimensional GaAs nanobeam cavities with embedded InAs quantum dots is studied at room temperature. Lasing is observed throughout the quantum dot PL spectrum, and the wavelength dependence of the threshold is calculated. We study the cavity lasers under both 780 nm and 980 nm pump, finding thresholds as low as 0.3 microW and 19 microW for the two pump wavelengths, respectively. Finally, the nanobeam cavity laser wavelengths are tuned by up to 7 nm by employing a fiber taper in near proximity to the cavities. The fiber taper is used both to efficiently pump the cavity and collect the cavity emission.

Full Text

Duke Authors

Cited Authors

  • Gong, Y; Ellis, B; Shambat, G; Sarmiento, T; Harris, JS; Vuckovic, J

Published Date

  • April 2010

Published In

Volume / Issue

  • 18 / 9

Start / End Page

  • 8781 - 8789

PubMed ID

  • 20588722

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.18.008781

Language

  • eng