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Title: Light-emitting diodes with 17% external quantum efficiency at 622 Mb/s for high-bandwidth parallel short-distance optical interconnects
Authors: Windisch, RH
Knobloch, A
Potemans, Jan
Dutta, B
Dohler, GH
Borghs, Gustaaf
Heremans, PL #
Issue Date: Mar-1999
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE Journal of Selected Topics in Quantum Electronics vol:5 issue:2 pages:166-171
Abstract: We report on nonresonant cavity light-emitting diodes (NRC-LED) with large quantum efficiencies and high speed. A maximum quantum efficiency of 31% is measured for a device with an active layer thickness of 120 nm, and 18.7% for a device having an active layer of 30 nm, Further, we report on optical rise and fall times of NRC-LED's. Even when switched to current levels below 4 mA, at which the external quantum efficiency exceeds 17%, our NRC-LED'S have 10%-90% rise and fall times of less than 2 ns, As a result, eye diagrams taken at this current level at 622 Mb/s are wide open. This demonstrates the suitability of high-efficiency NRC-LED's for optical interconnects, Finally, from a system's viewpoint it is important to note that the optical output power of NRC-LED's decreases by only 0.36%/degrees C.
URI: 
ISSN: 1077-260X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Electrical Engineering - miscellaneous
Physics and Astronomy - miscellaneous
# (joint) last author

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