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公开(公告)号：US20220255221A1
公开(公告)日：2022-08-11
申请号：US17174132
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Stephen P. Palese , Moe D. Soltani , Thomas R. Yengst , Charley A. Fodran , Joseph Marron , Duane D. Smith , Alexander Niechayev , Jeffrey P. Tate , James G. Leatham
Abstract: A device includes a photonic integrated circuit (PIC), which includes an optical phased array. The optical phased array includes multiple array elements, where each array element includes (i) an antenna element configured to transmit or receive optical signals and (ii) a phase modulator configured to modulate the optical signals transmitted or received by the antenna element. The PIC also includes at least one of (i) a source laser configured to generate optical energy, where the antenna elements are configured to transmit the optical signals based on the optical energy, and (ii) a receiver configured to receive and process the optical signals received by the antenna elements.
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Patent Agency Ranking
公开(公告)号：US20220252908A1
公开(公告)日：2022-08-11
申请号：US17174197
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Niraj K. Inamdar , Stephen P. Palese , Aaron B. Potter , Thomas R. Yengst
Abstract: A method includes generating a mixed optical beam using an optical phased array that includes multiple array elements, where each array element includes an antenna element and a phase modulator. The mixed optical beam includes a combination of (i) an output optical beam produced by the optical phased array and (ii) a reference optical beam. The method also includes capturing near-field measurements of the mixed optical beam, where the near-field measurements are captured while scanning phase angles of the phase modulators. The method further includes generating calibration data based on the near-field measurements, where the calibration data identifies phase and amplitude responses of the array elements. In addition, the method includes storing the calibration data.
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公开(公告)号：US11988903B2
公开(公告)日：2024-05-21
申请号：US17174197
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Niraj K. Inamdar , Stephen P. Palese , Aaron B. Potter , Thomas R. Yengst
CPC classification number: G02F1/0147 , G01N21/8806 , G02F1/292 , H01Q3/267 , H01Q3/2676 , H04B10/11 , H04B10/112 , G02F2203/50 , H04B10/40
Abstract: A method includes generating a mixed optical beam using an optical phased array that includes multiple array elements, where each array element includes an antenna element and a phase modulator. The mixed optical beam includes a combination of (i) an output optical beam produced by the optical phased array and (ii) a reference optical beam. The method also includes capturing near-field measurements of the mixed optical beam, where the near-field measurements are captured while scanning phase angles of the phase modulators. The method further includes generating calibration data based on the near-field measurements, where the calibration data identifies phase and amplitude responses of the array elements. In addition, the method includes storing the calibration data.
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公开(公告)号：US11644621B2
公开(公告)日：2023-05-09
申请号：US17174173
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Thomas R. Yengst , James G. Leatham , Alexander Niechayev
CPC classification number: G02B6/13 , G02B6/12016 , H04B10/40 , H04B10/503 , G02B2006/1213
Abstract: A device includes a photonic integrated circuit having an optical phased array. The optical phased array includes multiple array elements, where each array element includes (i) an antenna element configured to transmit or receive optical signals and (ii) a phase modulator configured to phase-shift the optical signals transmitted or received by the antenna element. The device also includes multiple digital register in integrated circuit (DRIIC) cells, where each DRIIC cell is associated with one of the array elements. The DRIIC cells are configured to receive digital inputs and to provide outputs to the phase modulators of the associated array elements in order to control the phase-shifts of the optical signals transmitted or received by the antenna elements based on the digital inputs.
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公开(公告)号：US11476576B2
公开(公告)日：2022-10-18
申请号：US17174132
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Stephen P. Palese , Moe D. Soltani , Thomas R. Yengst , Charley A. Fodran , Joseph Marron , Duane D. Smith , Alexander Niechayev , Jeffrey P. Tate , James G. Leatham
Abstract: A device includes a photonic integrated circuit (PIC), which includes an optical phased array. The optical phased array includes multiple array elements, where each array element includes (i) an antenna element configured to transmit or receive optical signals and (ii) a phase modulator configured to modulate the optical signals transmitted or received by the antenna element. The PIC also includes at least one of (i) a source laser configured to generate optical energy, where the antenna elements are configured to transmit the optical signals based on the optical energy, and (ii) a receiver configured to receive and process the optical signals received by the antenna elements.
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公开(公告)号：US20220252786A1
公开(公告)日：2022-08-11
申请号：US17174173
申请日：2021-02-11
Applicant: Raytheon Company
Inventor： Thomas R. Yengst , James G. Leatham , Alexander Niechayev
Abstract: A device includes a photonic integrated circuit having an optical phased array. The optical phased array includes multiple array elements, where each array element includes (i) an antenna element configured to transmit or receive optical signals and (ii) a phase modulator configured to phase-shift the optical signals transmitted or received by the antenna element. The device also includes multiple digital register in integrated circuit (DRIIC) cells, where each DRIIC cell is associated with one of the array elements. The DRIIC cells are configured to receive digital inputs and to provide outputs to the phase modulators of the associated array elements in order to control the phase-shifts of the optical signals transmitted or received by the antenna elements based on the digital inputs.
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