Accession Number : ADA018757

Title :   High-Speed Light-Emitting Diodes.

Descriptive Note : Final rept. (Vol. 1), 1 Apr 73-30 May 75,

Corporate Author : RCA LABS PRINCETON N J

Personal Author(s) : Ettenberg,Michael ; Wittke,James P. ; Kressel,Henry

Report Date : JUN 1975

Pagination or Media Count : 65

Abstract : This report describes the experimental and theoretical results of a program for the development of light-emitting diodes specifically designed for fiber-optic communications. Among the important achievements are the development of a diode capable of efficient operation at modulation frequencies in excess of 200 MHz, and the realization of a novel edge-emitting structure (the REED) which combines the efficiency of the surface-emitting diode with the narrow emission beam width of the edge emitter desirable for coupling into low numerical aperture (NA) fibers. One of the most important results discovered is the strong effect that adding Al to the GaAs in the recombination region has on improving the resistance to gradual degradation. By combining this characteristic with the use of edge-passivated stripe-contact structures, diodes have been demonstrated that operate at 1000 A/sq cm and exhibit no degradation after many thousands of hours.

Descriptors :   *Light emitting diodes, *Optical communications, *Fiber optics, Photodiodes, Optical waveguides, Waveguide couplers, Frequency modulation, Gallium arsenides, Substrates, Epitaxial growth, Aluminum compounds, Arsenides, Doping, Heterojunctions

Subject Categories : Electrooptical and Optoelectronic Devices
      Fiber Optics and Integrated Optics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE