Optical communication circuits
AssigneeXilinx, Inc.
InventorsAustin H. Lesea, Stephen M. Trimberger
Life of this patent
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Abstract
Various apparatuses, circuits, systems, and methods for optical communication are disclosed. In some implementations, an apparatus includes a package substrate and f first interposer mounted on the package substrate. The apparatus also includes a logic circuit and an optical interface circuit connected to the logic circuit via the first interposer. One of the optical interface circuit or the logic circuit is mounted on the first interposer. The optical interface circuit includes a driver circuit configured to receive electronic data signals from the logic circuit. The optical interface circuit also includes an optical transmitter circuit coupled to the driver circuit and configured to output optical data signals encoding the electronic data signals.
Claims16
An apparatus, comprising:
- an optical serializer, including:
- a plurality of optical modulators, each configured and arranged to receive a respective bit of a parallel N-bit data bus, the respective bit having a first bit period, and output a respective optical pulse representing a value of the respective bit and having a duration less than the first bit period, wherein N is greater than or equal to 2;
- for each of the plurality of optical modulators, a respective optical delay line configured and arranged to delay the respective optical pulses of the optical modulator by a respective length of time unique to the optical modulator to produce a respective optical output signal;
- and
- an optical combiner configured and arranged to combine the respective optical output signals produced by the optical delay line into a single optical beam.
A method, comprising:
- for each bit of parallel N-bit data bus transmitted in a first bit period, using a respective optical modulator to provide a respective optical pulse having a duration less than the first bit period, wherein N is greater than or equal to 2;
- delaying each of the respective optical pulses by a respective length of time unique to the optical modulator to produce a respective optical output signal;
- and
- combining the respective optical output signals into a single optical beam.
Dependencies are inferred from the claim text.