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公开(公告)号：US11789297B2
公开(公告)日：2023-10-17
申请号：US17586819
申请日：2022-01-28
Inventor： San-Liang Lee , Tsung-Han Lee , Chia-Hsuan Yang
CPC classification number: G02F1/0316 , G02F1/011 , G02F1/0311
Abstract: An optical phase shifter array includes: 1st˜nth optical-splitting elements, wherein each has an input end, a first output end and a second output end, and the input end of the 1st optical-splitting element receives an input light and outputs an evenly distributed optical signal to the optical-splitting element of the next stage, and n is a positive integer above 1; a plurality of first optical waveguides respectively connected to the input end of the optical-splitting element odd-numbered of the next stage and the first output end of the optical-splitting element of the previous stage; a plurality of second optical waveguides respectively connected to the input end of the optical-splitting-element even-numbered of the previous stage; and phase shifters of the 1st to the kth stage, which makes the optical signal passing through the optical waveguides produce a phase shift by heating or electro-optic effects.
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公开(公告)号：US11347129B2
公开(公告)日：2022-05-31
申请号：US17112188
申请日：2020-12-04
Inventor： San-Liang Lee , Chia-Hsuan Yang , Tsung-Han Lee
Abstract: A phase-controlled optical waveguide antenna array including an optical splitter, an array of phase shifters, and an optical waveguide antenna array is disclosed. The optical splitter divides the input light to a plural of optical waveguides, the phase shifter is connected to an optical waveguide of the optical splitter, and the optical waveguide antenna array is connected with the phase shifters. The optical waveguide antenna array employs periodic block structure to output a uniform light beam, and the phase shifters are tuned with adjacent thermal heaters to steer the output beam angle of the optical waveguide antenna array.
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