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.
Painter
O
Departments of Electrical Engineering and Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA. Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Lee
RK
Scherer
A
Yariv
A
O'Brien
JD
Dapkus
PD
Kim
I