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公开(公告)号：US11956014B2
公开(公告)日：2024-04-09
申请号：US17603085
申请日：2020-04-02
发明人： Marco Potenza , Bruno Paroli , Mirko Siano
CPC分类号： H04B10/118 , G02F2/008 , H04B7/18515 , H04B10/11 , H04B10/541 , H04J14/02
摘要： A method for transmitting and receiving an electromagnetic radiation beam, adapted to determine an orbital angular momentum of the received electromagnetic radiation beam, is described. There is further described a system for transmitting and receiving an electromagnetic radiation beam, capable of performing the aforesaid method. A method for performing a telecommunication of signals modulated according to any modulation technique and grouped by means of orbital angular momentum multiplexing is further described. There is further described a telecommunication system capable of performing the aforesaid method for performing a telecommunication of modulated signals.
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公开(公告)号：US12081267B2
公开(公告)日：2024-09-03
申请号：US17603051
申请日：2020-04-09
发明人： Marco Potenza , Bruno Paroli , Mirko Siano
CPC分类号： H04B10/118 , G02F2/008 , H04B7/18515 , H04B10/11 , H04B10/541 , H04J14/02
摘要： A method for demultiplexing and demodulating (in particular, “locally” demultiplexing and demodulating) amplitude-modulated signals grouped by means of orbital angular momentum multiplexing is described. The method involves demultiplexing and demodulating information a(t), b(t) modulated on each of a first modulated beam Fm1 and at least one second modulated beam Fm2, based on phase difference values ΔPab and ΔR detected by beam detectors located downstream of an interferometric structure 40 to which two portions of the electromagnetic beam carrying the modulated channels are provided as inputs, multiplexed in the orbital angular momentum variable. There is also described a corresponding system 100 for demultiplexing and demodulating amplitude-modulated signals capable of implementing the aforesaid method.
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公开(公告)号：US20240302709A1
公开(公告)日：2024-09-12
申请号：US18272735
申请日：2022-02-01
发明人： Hooman Mohseni
CPC分类号： G02F2/008 , G02F1/0102
摘要： A wavelength converter includes a first optical layer, a second optical layer, and a pixel array positioned between the first optical layer and the second optical layer. A pixel in the pixel array includes a first device to convert incident invisible light to an electrical signal and a second device that converts the electrical signal into visible light.
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