Coupling Lens Aberration Correction through Grating Design in a Switched Focal Plane Array
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorsMichael G. Moebius, Steven J. Byrnes, Steven J. Spector, Francis J. Rogomentich, Matthew A. Sinclair
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Abstract
A coupling interface arrangement is described for a photonic integrated circuit (PIC) device. The PIC includes an interface coupling surface having optical grating elements arranged to form optical output locations that produce corresponding light output beams. A coupling lens couples the light output beams into a conjugate plane at a far-field scene characterized by one or more optical aberrations that degrade optical resolution of the light outputs. The optical grating elements are configured to correct for the one or more optical aberrations.
Claims32
A coupling interface arrangement for a photonic integrated circuit (PIC), the arrangement comprising:
- a PIC including an interface coupling surface having a plurality of optical grating elements arranged to form a plurality of optical output locations configured to produce corresponding light output beams;
- and
- a coupling lens configured for coupling the light output beams into a conjugate plane at a far-field scene characterized by one or more optical aberrations that degrade optical resolution of the light outputs;
- wherein the optical grating elements are configured to correct for the one or more optical aberrations.
A coupling interface arrangement for a photonic integrated circuit (PIC), the arrangement comprising:
- a PIC including an interface coupling surface having a plurality of optical grating elements arranged to form a plurality of optical input locations configured to receive light input beams to the PIC;
- and
- a coupling lens configured for delivering the light input beams to the optical input locations by optically shaping optical communications signals from a conjugate plane at a far-field scene characterized by one or more optical aberrations that degrade optical resolution of the light input beams;
- wherein the optical grating elements are configured to correct for the one or more optical aberrations.
Dependencies are inferred from the claim text.