Silicon photonics multicarrier optical transceiver
AssigneeAcacia Communications, Inc.
InventorChristopher DOERR
Life of this patent
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Abstract
Disclosed herein are techniques, methods, structures and apparatus that provide a silicon photonics multicarrier optical transceiver wherein both the transmitter and receiver are integrated on a single silicon chip and which generates a plurality of carriers through the effect of an on-chip modulator, amplifies the optical power of the carriers through the effect of an off-chip amplifier, and generates M orthogonal sets of carriers through the effect of an on-chip basis former.
Claims9
A multicarrier coherent optical transceiver comprising:
- a single silicon substrate having integrated thereon a transmitter and a receiver, said transmitter comprising;
- an on-chip phase modulator that receives as input an optical signal from an optical signal source, generates N carriers, and directs the N carriers to an off-chip optical amplifier;
- an on-chip basis former that receives as input amplified N carriers from the off-chip optical amplifier and generates M orthogonal sets of carriers;
- and
- a number of modulators each receiving as input a particular one of the generated M orthogonal carriers and modulating the received carrier with data to generate a modulated output;
- and
- a power combiner for combining the modulated outputs of the modulators into a transmitter output signal;
- and
- said receiver comprising;
- a polarization splitter and rotator that receives a multicarrier input signal and applies a split input signal to a plurality of hybrids;
- the plurality of hybrids optically connected to the basis former;
- wherein the off-chip optical amplifier is not integrated into the single silicon substrate.
A multicarrier coherent optical transceiver comprising a single silicon substrate having integrated thereon both a transmitter and a receiver wherein a plurality of carriers are generated through the effect of a phase modulator integrated on the silicon substrate;
- the plurality of carriers are amplified through the effect of an optical amplifier not integrated onto the single silicon substrate;
- and the optically amplified carriers are separated into one or more orthogonal sets of carriers by one or more basis formers integrated on the silicon substrate.
Dependencies are inferred from the claim text.