Analog Photonics LLC

Matthew Byrd

Ehsan Shah Hosseini

Michael Robert Watts

Christopher Vincent Poulton

Peter Nicholas Russo

Diedrik Vermeulen

Erman Timurdogan

Zhan Su

At least one beam of an optical wave is transmitted along a transmission angle toward a target location from a send aperture of a transmitter. The optical wave comprises at least a first portion, and a second portion having a different characteristic from a characteristic of the first portion. Two or more receivers include at least one receiver comprising: a receive aperture arranged in proximity to at least one of the send aperture or a receive aperture of a different receiver, an optical phased array within the receive aperture, the optical phased array being configured to receive at least a portion of a collected optical wave arriving at the receive aperture along a respective collection angle, and a filter configured to filter the received portion of the collected optical wave according to the characteristic of the first portion of the optical wave.

Multi-static coherent LiDAR

Aspects of the present disclosure describe systems, methods, and structures&#x2014;including LiDAR&#x2014;that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead&#x2014;employ optical Fourier transform structures.

Integrated optical structures for LiDAR and other applications employing multiple detectors

An optical switching apparatus comprises: input ports receiving respective input optical waves, each coupled to a respective beam-forming structure comprising: an input optical waveguide, an optical power distributor to distribute optical power from a mode of the optical waveguide over the respective spatial region, and a spatially distributed phase shifter to apply different transmission optical phase shifts over different portions of the respective spatial region, where the transmission optical phase shifts determine the selected transmission angle; and output ports providing respective output optical waves, each coupled to a respective beam-receiving structure comprising: a spatially distributed phase shifter to apply different reception optical phase shifts over different portions of the respective spatial region, where the reception optical phase shifts determine the selected reception angle, an optical power combiner to combine optical power from different portions of the respective spatial region into a collected a mode, and an output optical waveguide.

Optical switching using spatially distributed phase shifters

Aspects of the present disclosure describe systems, methods, and structures for optical phased array calibration that advantageously may be performed as a single-pass measurement of phase offset with respect to only a single interference measurement. In sharp contrast to the prior art&#x2014;systems, methods, and structures according to aspects of the present disclosure advantageously produce phase offsets and phase functions of each element without time-consuming iterative procedures or multiple detector signals as required by the prior art.

Systems, methods, and structures for optical phased array calibration via interference

Aspects of the present disclosure describe systems, methods, and structures including integrated laser systems that employ external chirping structures that may advantageously include phase shifters and/or one or more filters. Further aspects of the present disclosure describe systems, methods, and structures including laser systems that employ external chirping structures that may advantageously include optical phased arrays.

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Arlington, MA, United States of America

Matthew Byrd