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Published June 11, 1999 | public
Journal Article

Two-Dimensional Photonic Band-Gap Defect Mode Laser


A laser cavity formed from a single defect in a two-dimensional photonic crystal is demonstrated. The optical microcavity consists of a half wavelength–thick waveguide for vertical confinement and a two-dimensional photonic crystal mirror for lateral localization. A defect in the photonic crystal is introduced to trap photons inside a volume of 2.5 cubic half-wavelengths, approximately 0.03 cubic micrometers. The laser is fabricated in the indium gallium arsenic phosphide material system, and optical gain is provided by strained quantum wells designed for a peak emission wavelength of 1.55 micrometers at room temperature. Pulsed lasing action has been observed at a wavelength of 1.5 micrometers from optically pumped devices with a substrate temperature of 143 kelvin.

Additional Information

© 1999 American Association for the Advancement of Science. Received 24 February 1999; accepted 10 May 1999. O.J.P. and R.K.L. acknowledge support from the Natural Sciences and Engineering Research Council of Canada. This work was supported by the U.S. Army Research Office (contract DAAH04-96-1-0389) and NSF (contract ECS-9632937).

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