Method and apparatus for self-aligning photonic interconnections
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United States of America Patent
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Issued Date -
Oct 21, 2004
app pub date -
Apr 5, 2002
filing date -
Apr 5, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A one-way communications pathway between two integrated circuits comprises a VCSEL array of one or more light emitters on a first integrated circuit, coupled to a photo-detector array on a second integrated circuit. The photo-detector array comprises a number of detectors which is greater than the number of activated light emitters, such that light from each emitter is imaged onto one or more detectors. Each detector generates an electrical current signal when illuminated by the emitter light. Individual electrical current signals from multiple illuminated detectors are selected via switches, and routed through a summing junction. The resulting summed signal is amplified and converted to a digital output signal.
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