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公开(公告)号：US20230296908A1
公开(公告)日：2023-09-21
申请号：US18024988
申请日：2021-08-05
发明人： Daniel GOLUBCHIK , David SHWA
CPC分类号： G02B27/141 , G02B27/1013 , G02B23/04 , G02B26/0833 , G02B27/0068
摘要： A first transceiver has a beam emitter that generates first coherent beams, and first optics that direct the first coherent beams towards a target and collect radiation reflected from the target. A second transceiver has a beam emitter that generates second coherent beams, a detector, and second optics having an aperture. The second optics directs the second coherent beams towards the target via the aperture, collects radiation reflected from the target via the aperture, and guides a first radiation component of the collected radiation, that corresponds to the first coherent beams, to the detector. The detector generates, from the first radiation component, a signal indicative of an intensity of radiation impinging on the target corresponding to the first coherent beams. A control subsystem is associated with the transceivers and modifies at least one parameter of the first transceiver based on the intensity signal.
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公开(公告)号：US20240204473A1
公开(公告)日：2024-06-20
申请号：US18591069
申请日：2024-02-29
发明人： Daniel GOLUBCHIK , Yehonathan SEGEV , David SHWA
CPC分类号： H01S3/1307 , H01S3/0085 , H01S3/067 , H01S3/10053 , H01S3/2308 , H01S3/2383 , G01S7/4815 , H01S3/06737 , H01S3/10092 , H01S3/1305 , H01S5/4012
摘要： A coherent beam combination (CBC) system (10) includes an array of beam sources (12a, 12b and 12c) generating coherent beams directed towards a target (T). The phase modulators (14a, 14b and 14c) allow adjustment of relative phase offsets of the beams. A detector (16) monitors an intensity of the radiation impinging on an area of the target (T). A controller (18) receives the intensity parameter and controls a phase adjustment of the beams according to a deterministic (i.e., quantitative) measurement of a phase offset of each beam relative to a representative phase of the sum of all the other beams. This is achieved by using interferometric techniques, referred to herein as Target In-the-Loop Interferometry (TILI).
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公开(公告)号：US20240322514A1
公开(公告)日：2024-09-26
申请号：US18269621
申请日：2022-02-01
发明人： Daniel GOLUBCHIK
CPC分类号： H01S3/0071 , G02B27/123 , H01S3/0014 , H01S3/094076 , H01S3/2383 , H01S3/067 , H01S3/094061
摘要： A CBC system includes an array of beam sources generating coherent beams directed towards a target. The beam sources have associated adjustable phase modulators and beam steering arrangements. For each of the beams in a subset of the beams, the corresponding beam steering arrangement is actuated to steer the beam, and the corresponding phase modulator is actuated to modulate a current phase of the beam between at least three phase states. A detector monitors an intensity parameter that varies as a function of an intensity of radiation impinging on the target. A controller calculates, for each of the beams in the subset, a current value that is representative of a relative intensity of the beam based at least in part on the monitored intensity parameter at each of the at least three phase states. The calculated value is indicative of a current position of the beam relative to the target.
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公开(公告)号：US20240012113A1
公开(公告)日：2024-01-11
申请号：US18024992
申请日：2021-08-08
发明人： Daniel GOLUBCHIK
CPC分类号： G01S7/4816 , G01S7/4815 , G01S7/497 , G02B27/0068 , G01S17/86 , G02B23/04 , G02B26/0833
摘要： A targeting receiver operates with beam emitters. Each emitter generates coherent beams directed towards a target as a composite beam having an associated signature. For each composite beam, the target reflects a proportion of radiation intensity as a reflected radiation component. A receiver telescope collects target-reflected radiation and directs the radiation to a spatial filter. The reflected radiation includes radiation components, at least some of which are combined as a combined radiation composed of the reflected radiation components. Intensity of the combined radiation indicates the intensity of the composite beams impinging on the target. The spatial filter filters the reflected radiation by selectively passing the combined radiation. Each component of the combined radiation is identifiable by the signature associated with the composite beam corresponding to the component of the combined radiation. In certain embodiments, a distinguishing module is associated with the receiver and distinguishes the components based on the signature.
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公开(公告)号：US20230400569A1
公开(公告)日：2023-12-14
申请号：US18036427
申请日：2021-12-02
发明人： Daniel GOLUBCHIK , Ahron MALINE
CPC分类号： G01S13/865 , G01S7/4815 , G01S17/08 , G01S13/08 , G01C3/02
摘要： A range-finding apparatus and method for measuring the range of a target illuminated by a coherent beam combining (CBC) system having at least two partially coherent sub-beams. The apparatus includes a phase modulation controller and a signal processor. The controller provides one or more optical phase modulation signals to the CBC system. The signal processor receives an initial measurement of target range, provided by either the CBC system or an external range-finding device and having a relatively large uncertainty, and a time-varying received intensity signal provided by the CBC system. The signal processor calculates frequency components of the intensity signal, forms rotated frequency components corresponding to a time-of-flight correction, calculates an objective function depending upon the rotated frequency components, determines a global minimum of the objective function, and calculates a corrected measurement of target range having an uncertainty which is less than that of the initial measurement of target range.
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公开(公告)号：US20210294109A1
公开(公告)日：2021-09-23
申请号：US17259933
申请日：2019-07-18
发明人： Daniel GOLUBCHIK , Yehonathan SEGEV , David SHWA
摘要： A coherent beam combination (CBC) system (10) includes an array of beam sources (12a, 12b and 12c) generating coherent beams directed towards a target (T). The phase modulators (14a, 14b and 14c) allow adjustment of relative phase offsets of the beams. A detector (16) monitors an intensity of the radiation impinging on an area of the target (T). A controller (18) receives the intensity parameter and controls a phase adjustment of the beams according to a deterministic (i.e., quantitative) measurement of a phase offset of each beam relative to a representative phase of the sum of all the other beams. This is achieved by using interferometric techniques, referred to herein as Target In-the-Loop Interferometry (TILI).
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