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公开(公告)号：US20230058824A1
公开(公告)日：2023-02-23
申请号：US17977075
申请日：2022-10-31
申请人： Analog Photonics LLC
摘要： An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.
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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.
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公开(公告)号：US11320585B2
公开(公告)日：2022-05-03
申请号：US16994226
申请日：2020-08-14
申请人： Analog Photonics LLC
发明人： Michael Robert Watts , Benjamin Roy Moss , Ehsan Shah Hosseini , Christopher Vincent Poulton , Peter Nicholas Russo
IPC分类号： G02B6/12 , G02B6/42 , G02B7/00 , G02B27/00 , G02F1/01 , H01S5/024 , H01S5/02375 , H01L21/56 , H01L23/00 , H01L31/105 , H01L31/18 , H01L23/31 , H01S5/02326 , H01S5/02345
摘要： A plurality of waveguide structures are formed in at least one silicon layer of a first member. The first member includes: a first surface of a first silicon dioxide layer that is attached to a second member that consists essentially of an optically transmissive material having a thermal conductivity less than about 50 W/(m·K), and a second surface of material that was deposited over at least some of the plurality of waveguide structures. An array of phase shifters is formed in one or more layers of the first member. An array of temperature controlling elements are in proximity to the array of phase shifters.
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公开(公告)号：US11196486B2
公开(公告)日：2021-12-07
申请号：US17092531
申请日：2020-11-09
申请人： Analog Photonics LLC
IPC分类号： H04B10/00 , H04B10/112
摘要： Optical communication with a remote node comprises: transmitting at least one optical beam to the remote node; receiving at least a portion of at least one optical beam from the remote node; providing intensity information based on one or more signals from one or more optical detector modules in an array of optical detector modules detecting the portion of the optical beam received from the remote node; and controlling at least one optical phased array to steer the optical beam transmitted to the remote node based on intensity information received from the remote node.
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公开(公告)号：US20210278707A1
公开(公告)日：2021-09-09
申请号：US17192169
申请日：2021-03-04
申请人： Analog Photonics LLC
IPC分类号： G02F1/01
摘要： Controlling an optical phased array includes applying optical phase shifts by an array of phase shifter (PS) elements, each PS element applying an optical phase shift based on an input voltage signal applied across first and second terminals of the PS element, providing output voltage signals from an array of driver elements. During a charging time period, each driver element provides an output voltage signal to determine a corresponding input voltage signal applied across at least one of the PS elements; an array of switches control connectivity between the driver elements and respective PS elements; and all of the second terminals of all of the PS elements in the array of PS elements are maintained at a common voltage. The total number of switches in the array of switches is at least as large as the total number of PS elements in the array of PS elements.
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公开(公告)号：US11003045B2
公开(公告)日：2021-05-11
申请号：US15885647
申请日：2018-01-31
申请人： ANALOG PHOTONICS LLC
发明人： Ehsan Hosseini , Michael Watts
IPC分类号： G02F1/29
摘要： Aspects of the present disclosure describe optical phased array structures and devices in which hyperbolic phase envelopes are employed to create focusing and diverging emissions in one and two dimensions. Tuning the phase fronts moves focal point spot in depth and across the array. Grating emitters are also used to emit light upward (out of plane). Adjusting the period of the gratings along the light propagation direction results in focusing the light emitted from the gratings. Changes in the operating wavelengths employed moves the focal spot along the emitters.
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公开(公告)号：US20200379185A1
公开(公告)日：2020-12-03
申请号：US16994234
申请日：2020-08-14
申请人： Analog Photonics LLC
摘要： Aspects of the present disclosure describe large scale steerable optical switched arrays that may be fabricated on a common substrate including many thousands or more emitters that may be arranged in a curved pattern at the focal plane of a lens thereby allowing the directional control of emitted light and selective reception of reflected light suitable for use in imaging, ranging, and sensing applications including accident avoidance.
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公开(公告)号：US10761272B2
公开(公告)日：2020-09-01
申请号：US16457158
申请日：2019-06-28
申请人： Analog Photonics LLC
发明人： Ehsan Hosseini , Michael Watts
摘要： Aspects of the present disclosure describe large scale steerable optical switched arrays that may be fabricated on a common substrate including many thousands or more emitters that may be arranged in a curved pattern at the focal plane of a lens thereby allowing the directional control of emitted light and selective reception of reflected light suitable for use in imaging, ranging, and sensing applications including accident avoidance.
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9.发明申请公开(公告)号：US20190260123A1
公开(公告)日：2019-08-22
申请号：US16279885
申请日：2019-02-19
申请人： ANALOG PHOTONICS LLC
发明人： Christopher Nicholas POULTON , Peter RUSSO , Erman TIMURDOGAN , Matthew BYRD , Diedrik VERMEULEN , Ehsan HOSSEINI
IPC分类号： H01Q3/26 , H04B10/2575 , G02F1/29 , G02F1/295
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.
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公开(公告)号：US20190235233A1
公开(公告)日：2019-08-01
申请号：US16260016
申请日：2019-01-28
申请人： ANALOG PHOTONICS LLC
发明人： Peter Nicholas RUSSO , Ehsan HOSSEINI , Christopher POULTON , Erman TIMURDOGAN , Diedrik VERMEULEN , Michael Robert WATTS , Michael WHITSON
IPC分类号： G02B27/00
CPC分类号： G02B27/0068 , G02B27/0087
摘要： Aspects of the present disclosure describe systems, methods, and structures for aberration correction of optical phased arrays that employ a corrective optical path difference (OPD) in the near-field of an OPA to correct or cancel out aberrations in emitted beams of the OPA including those reaching far-field distances by generating a spatially-varying OPD across the aperture of the OPA that is substantially equal and opposite to an equivalent OPD of the aberration(s).
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