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公开(公告)号：US12055798B2
公开(公告)日：2024-08-06
申请号：US17192169
申请日：2021-03-04
申请人： Analog Photonics LLC
CPC分类号： G02F1/0121 , G01S7/48 , G01S7/481 , G01S7/4815 , G02B26/06 , G02F2203/50
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：US20240231082A1
公开(公告)日：2024-07-11
申请号：US18615008
申请日：2024-03-25
申请人： Analog Photonics LLC
发明人： Peter Nicholas Russo , Ehsan Shah Hosseini , Christopher Vincent Poulton , Erman Timurdogan , Diedrik Vermeulen , Michael Robert Watts , Michael J. Whitson
IPC分类号： G02B27/00 , H04B10/112 , H04B10/116 , H04B10/40 , H04B10/50 , H04B10/60
CPC分类号： G02B27/0068 , G02B27/0087 , H04B10/112 , H04B10/116 , H04B10/40 , H04B10/50 , H04B10/60
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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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
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.
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公开(公告)号：US11693196B2
公开(公告)日：2023-07-04
申请号：US17553904
申请日：2021-12-17
申请人： Analog Photonics LLC
IPC分类号： G02B6/42
CPC分类号： G02B6/4232 , G02B6/4206 , G02B6/4214 , G02B6/4238 , G02B6/4274
摘要： A first photonic die has a first coupling edge and a first die surface, and comprises: a first waveguide extending in proximity to the first coupling edge; a portion of the first die surface forming an alignment edge substantially parallel to the first waveguide; and a first alignment feature etched into or formed adjacent to the first coupling edge. A second photonic die has a second coupling edge and a second die surface, and comprises: a second waveguide extending in proximity to the second coupling edge; a portion of the second die surface configured to form a receptacle sized to constrain a position of the alignment edge; and a second alignment feature etched into or formed adjacent to the second coupling edge and configured to enable alignment with the first alignment feature when the first photonic die and the second photonic die are substantially aligned with each other.
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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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