Large-Diameter InGaAs/AlGaAs Vertical-Cavity Surface-Emitting Lasers with Low Threshold Current Density Fabricated Using a Simple Chemical Etch Process
Abstract
We have demonstrated threshold current densities below 800 A/sq cm in large-diameter (75 micrometers < d< 150 micrometers vertical-cavity surface- emitting lasers fabricated from an epitaxial structure containing a single In(0. 2)Ga(0.8)As quantum well in a one-wavelength-long Fabry-Perot resonant cavity. The fabrication process uses a circular Au/Cr/Au disk as both the p-type contact and the mask for chemically etching individual diodes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1994
- Accession Number
- ADA277733
Entities
People
- George J. Simonis
- John L. Bradshaw
- John T. Pham
- Richard P. Leavitt
Organizations
- United States Army Research Laboratory