公开(公告)号：US12061260B2

公开(公告)日：2024-08-13

申请号：US17975834

申请日：2022-10-28

申请人： Analog Photonics LLC

发明人： Peter Nicholas Russo ,  Christopher Vincent Poulton ,  Matthew Byrd ,  Zhan Su ,  Ehsan Hosseini ,  Michael Robert Watts

IPC分类号： G01S17/32 ,  G01S7/481 ,  G01S7/4911 ,  G01S7/4912

CPC分类号： G01S17/32 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4911 ,  G01S7/4918

摘要： 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.

公开(公告)号：US20240014631A1

公开(公告)日：2024-01-11

申请号：US18347907

申请日：2023-07-06

申请人： Analog Photonics LLC

发明人： Christopher Vincent Poulton ,  Matthew Byrd ,  Peter Nicholas Russo ,  Diedrik Vermeulen

IPC分类号： H01S5/0687 ,  H01S5/0225 ,  H01S5/068 ,  H01S5/02

CPC分类号： H01S5/0687 ,  H01S5/0225 ,  H01S5/06817 ,  H01S5/021

摘要： An apparatus comprises an optical cavity formed on a substrate and defining a round-trip optical path, an interface positioning at least a portion of a gain medium to provide an active portion of the round-trip optical path over which the gain medium provides sufficient gain for the optical wave to propagate around the round-trip optical path in a single mode, an output coupler coupling a portion of the optical wave out of the optical cavity from a passive portion of the round-trip optical path into a waveguide segment formed on the substrate, one or more tap couplers each diverting less than 50% of optical power from the waveguide segment, and one or more on-chip modules each receiving diverted optical power from at least one of the tap couplers and providing information associated with a laser that comprises the optical cavity and the gain medium.

公开(公告)号：US20230052542A1

公开(公告)日：2023-02-16

申请号：US17975834

申请日：2022-10-28

申请人： Analog Photonics LLC

发明人： Peter Nicholas Russo ,  Christopher Vincent Poulton ,  Matthew Byrd ,  Zhan Su ,  Ehsan Hosseini ,  Michael Robert Watts

IPC分类号： G01S17/32 ,  G01S7/481 ,  G01S7/4911 ,  G01S7/4912

摘要： 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.

公开(公告)号：US20220113389A1

公开(公告)日：2022-04-14

申请号：US17557401

申请日：2021-12-21

申请人： Analog Photonics LLC

发明人： Ehsan Hosseini ,  Michael Watts ,  Christopher Poulton ,  Matthew Byrd ,  Diedrik Vermeulen ,  Peter Russo

IPC分类号： G01S7/4863 ,  G01S7/481 ,  G01S17/42

摘要： Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—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—employ optical Fourier transform structures.

公开(公告)号：US11243296B2

公开(公告)日：2022-02-08

申请号：US16009915

申请日：2018-06-15

申请人： ANALOG PHOTONICS LLC

发明人： Matthew Byrd ,  Ehsan Hosseini ,  Christopher Poulton ,  Peter Russo ,  Diedrik Vermeulen ,  Michael Watts

IPC分类号： G01S7/486 ,  G01S7/481 ,  G01S7/4863 ,  G01S17/42 ,  G01S17/34

摘要： Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—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—employ optical Fourier transform structures.

公开(公告)号：US20240142698A1

公开(公告)日：2024-05-02

申请号：US18495428

申请日：2023-10-26

申请人： Analog Photonics LLC

发明人： Michael Robert Watts ,  Matthew Byrd ,  Christopher Vincent Poulton

IPC分类号： G02B6/12 ,  G02F1/00

CPC分类号： G02B6/12019 ,  G02B6/12011 ,  G02F1/0063

摘要： An optical coupler in a photonic chip is configured to couple an optical port to an array of optical phase shifters in the chip. An optical amplifier module is optically coupled to a portion of the chip to receive phase shifted optical waves, and is configured to: provide, after propagation of the phase shifted optical waves through different respective gain regions, amplified optical waves that optically interfere with each other starting at an emission plane to form an optical phased array output beam, and provide an arrangement of the gain regions such that (1) at least two phase shifted optical waves propagating through adjacent gain regions have optical path lengths between the optical port and the emission plane that are substantially equal to each other, and (2) a pitch of the gain regions is substantially equal to a pitch of the amplified optical waves at the emission plane.

公开(公告)号：US20240142623A1

公开(公告)日：2024-05-02

申请号：US18495855

申请日：2023-10-27

申请人： Analog Photonics LLC

发明人： Peter Nicholas Russo ,  Michael Robert Watts ,  Matthew Byrd

IPC分类号： G01S17/34 ,  G01S7/481 ,  G01S17/58

CPC分类号： G01S17/34 ,  G01S7/4811 ,  G01S17/58

摘要： Modulation of a frequency of a transmitted optical wave includes: at least a first and second slopes for respective frequency sweeps associated with respective points in at least one of a first or second frame. A computed range and a computed velocity are determined based on combining first partial data derived from at least one measurement associated with a first backscattered portion of the transmitted optical wave with second partial data derived from at least one measurement associated with a second backscattered portion of the transmitted optical wave. The first backscattered portion is received during a frequency sweep at the first slope associated with a first point in the first frame. The second backscattered portion is received during a frequency sweep at the second slope associated with a second point in the first frame different from the first point or associated with at least one point in the second frame.

公开(公告)号：US11619718B2

公开(公告)日：2023-04-04

申请号：US17557401

申请日：2021-12-21

申请人： Analog Photonics LLC

发明人： Ehsan Hosseini ,  Michael Watts ,  Christopher Poulton ,  Matthew Byrd ,  Diedrik Vermeulen ,  Peter Russo

IPC分类号： G01S7/4863 ,  G01S7/481 ,  G01S17/42 ,  G01S17/34

摘要： Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—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—employ optical Fourier transform structures.

公开(公告)号：US10790585B2

公开(公告)日：2020-09-29

申请号：US16279885

申请日：2019-02-19

申请人： ANALOG PHOTONICS LLC

发明人： Christopher Poulton ,  Peter Russo ,  Erman Timurdogan ,  Matthew Byrd ,  Diedrik Vermeulen ,  Ehsan Hosseini

IPC分类号： H01Q3/26 ,  G02F1/295 ,  G02F1/29 ,  H04B10/2575

摘要： 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—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.

公开(公告)号：US10707837B2

公开(公告)日：2020-07-07

申请号：US16028123

申请日：2018-07-05

申请人： ANALOG PHOTONICS LLC

发明人： Christopher Poulton ,  Matthew Byrd ,  Ehsan Hosseini ,  Erman Timurdogan ,  Michael Watts

IPC分类号： H03H17/08 ,  H03H11/22 ,  H01S1/00 ,  G02F2/02

摘要： 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.