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Proceedings Paper

Realization of highly efficient and high-speed resonant cavity LED for coupling to plastic optical fibers
Author(s): Ronny Bockstaele; Thierry Coosemans; Carl Sys; Luc Vanwassenhove; An Van Hove; Bart Dhoedt; Ingrid Moerman; Peter Van Daele; Roel G. Baets
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Paper Abstract

Planar Resonant Cavity LEDs (RCLEDs) are suitable light sources for parallel interchip interconnect links, due to their high efficiency, zero-threshold, low voltage, high reliability and high speed characteristics. The through- substrate emitting RCLEDs, optimized for Polymer Optical Fiber (POF) coupling, consist of an InGaAs quantum sandwiched between a metal mirror and a distributed Bragg reflector. The RCLEDs are arranged in 8 X 8 arrays with 250 um pitch. The arrays have been mounted onto glass carriers, and the coupling efficiency into POF, the far- field pattern and the modulation characteristics are measured. The overall quantum efficiency of the devices with 50 um diameter was found to be 13.4%, the QE into POF was 3.7%. The large-signal transient behavior of the devices has been investigated. Using a high-speed pulse source, nanosecond rise and fall times have been measured. Wide open eye diagrams at 1 Gbit/s were obtained using voltage pulse drivers. These data were compared to theoretical results based on a non-linear rate equations model.

Paper Details

Date Published: 14 April 1999
PDF: 9 pages
Proc. SPIE 3621, Light-Emitting Diodes: Research, Manufacturing, and Applications III, (14 April 1999); doi: 10.1117/12.344481
Show Author Affiliations
Ronny Bockstaele, Univ. of Ghent and IMEC (Belgium)
Thierry Coosemans, Univ. of Ghent and IMEC (Belgium)
Carl Sys, Univ. of Ghent and IMEC (Belgium)
Luc Vanwassenhove, Univ. Gent (Belgium)
An Van Hove, Univ. of Ghent and IMEC (Belgium)
Bart Dhoedt, Univ. of Ghent and IMEC (Belgium)
Ingrid Moerman, Univ. of Ghent and IMEC (Belgium)
Peter Van Daele, Univ. of Ghent and IMEC (Belgium)
Roel G. Baets, Univ. of Ghent and IMEC (Belgium)

Published in SPIE Proceedings Vol. 3621:
Light-Emitting Diodes: Research, Manufacturing, and Applications III
E. Fred Schubert; Ian T. Ferguson; H. Walter Yao, Editor(s)

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