Accession Number : ADA307304

Title :   High-Efficiency AlInGaP Visible Vertical Cavity Surface- Emitting Lasers Incorporating Wafer Fusion and Improved Heat Sinking. Phase 1.

Descriptive Note : Final rept. 9 May 95-16 Jan 96,

Corporate Author : OPTICAL CONCEPTS INC LOMPOC CA

Personal Author(s) : Jayaraman, Vijaysekhar

PDF Url : ADA307304

Report Date : 23 APR 1996

Pagination or Media Count : 29

Abstract : Red vertical cavity surface emitting lasers (VCSELs) using aluminum indium gallium phosphide (AlInGaP) based active regions are limited in performance by thermally activated carrier leakage, and absorption in aluminum gallium arsenide mirrors. This program seeks to improve performance by flip-chip bonding for better heat sinking. This requires wafer fusion to gallium phosphide substrates. We also improve device efficiency by lateral oxidation. Lastly, we investigate alternative mirror combinations which are transparent to shorter wavelengths.

Descriptors :   *ALUMINUM COMPOUNDS, *LASERS, *SURFACES, *WAFERS, *INDIUM PHOSPHIDES, *HEAT SINKS, *GALLIUM PHOSPHIDES, THERMAL PROPERTIES, MIRRORS, EMISSION, GALLIUM ARSENIDES, EFFICIENCY, TRANSPARENCE, SUBSTRATES, CAVITIES, VERTICAL ORIENTATION, OXIDATION, VISIBILITY, BONDING, ABSORPTION, HEAT, SHORT WAVELENGTHS, FLIP CHIPS.

Subject Categories : Lasers and Masers
      Inorganic Chemistry
      Physical Chemistry
      Laminates and Composite Materials
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE