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US 2023/0400554 A1Published application
Ranging using a shared path optical coupler
AssigneePointcloud Inc.
InventorAlexander Yukio Piggott
Life of this patent
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Abstract
Described are various configurations for transmitting and receiving optical light using a shared path ranging system. The shared path ranging system can include an optical router (e.g., an optical coupler) coupled to a grating to transmit light to a physical object and receive light reflected by the physical object. The shared path ranging system can include rows of routers and gratings in a two-dimensional configuration to transmit and receive light for ranging purposes.
Claims20
A photonic integrated circuit comprising:
- an optical router configured to route light from a light emitter toward a bi-directional grating and to route a reflected portion of the light from the bi-directional grating toward a light detector;
- and
- the bi-directional grating, configured to direct the light toward a target and to receive the reflected portion of the light from the target.
A LIDAR sensor system comprising:
- a light emitter configured to emit light;
- and
- a photonic integrated circuit comprising:
- an optical router configured to route the light from the light emitter toward a bi-directional grating and to route a reflected portion of the light from the bi-directional grating toward a light detector;
- and
- the bi-directional grating, configured to direct the light toward a target and to receive the reflected portion of the light from the target.
3 more elements
A frequency modulated continuous wave (FMCW) LIDAR system comprising:
- a FMCW LIDAR transceiver comprising a photonic integrated circuit, the photonic integrated circuit comprising:
- an optical router configured to route light from a light emitter toward a bi-directional grating and to route a reflected portion of the light from the bi-directional grating toward a light detector;
- and
- the bi-directional grating, configured to direct the light toward a target and to receive the reflected portion of the light from the target;
- and
- a lens configured to guide the light from the bi-directional grating toward the target and to guide the reflected portion of the light from the target to the bi-directional grating.
3 more elements
Dependencies are inferred from the claim text.