Invention Grant
- Patent Title: Passive matrix addressing of optical phased arrays
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Application No.: US15896005Application Date: 2018-02-13
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Publication No.: US10942273B2Publication Date: 2021-03-09
- Inventor: Seyed Mohammadreza Fatemi , Aroutin Khachaturian , Behrooz Abiri , Seyed Ali Hajimiri
- Applicant: California Institute of Technology
- Applicant Address: US CA Pasadena
- Assignee: California Institute of Technology
- Current Assignee: California Institute of Technology
- Current Assignee Address: US CA Pasadena
- Agency: Alston & Bird LLP
- Main IPC: G01S17/36
- IPC: G01S17/36 ; G01S7/491 ; G02F1/29 ; H01Q19/06 ; G01S7/481 ; G01S7/4915 ; G11C8/04 ; G11C8/12

Abstract:
An optical phased array (OPA) includes, in part, a multitude of phase control elements disposed along N rows and M columns forming an N×M array. The phase control elements disposed along ith row are coupled to ith row signal line and phase control elements disposed along jth column are coupled to jth column signal line. The OPA further includes, in part, a row select block having N switches each configured to couple one of the N rows of the phase control elements to a digital-to-analog converter (DAC) in response to a row select signal. The OPA further includes, in part, a column select block having M switches each configured to couple one of the M rows of the phase control elements to a ground terminal in response to a column select signal.
Public/Granted literature
- US20190056499A1 PASSIVE MATRIX ADDRESSING OF OPTICAL PHASED ARRAYS Public/Granted day:2019-02-21
Information query
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