公开(公告)号：US11543730B1

公开(公告)日：2023-01-03

申请号：US17471757

申请日：2021-09-10

Applicant: STMicroelectronics S.r.l.

Inventor： Antonio Fincato

IPC: G02F1/295

Abstract: An optical beam steering device and a method for beam steering are described. The optical beam steering device including: a laser source coupled to an optical phased array (OPA) The OPA includes: a beam splitter network optically coupled to the laser source and configured to split a laser beam generated by the laser source into N outputs to generate an output optical beam; a first network of first phase shifters configured to steer the output optical beam in a first direction away from a longitude direction; and a second network of second phase shifters configured to steer the output optical beam in a second direction away from the longitude direction, the second direction being opposite to the first direction.

公开(公告)号：US11079232B2

公开(公告)日：2021-08-03

申请号：US16511152

申请日：2019-07-15

Applicant: STMicroelectronics S.r.l.

Inventor： Antonio Fincato ,  Enrico Stefano Temporiti Milani ,  Maurizio Zuffada ,  Angelica Simbula

IPC: G01C19/72

Abstract: A device includes an optical resonator having four ports including a first port, a second port, a third port, and a fourth port. A first electronic circuit is configured to calculate a first information representative of a power difference between optical signals supplied by two of the four ports. A method of operating a device is also disclosed.

公开(公告)号：US10761279B2

公开(公告)日：2020-09-01

申请号：US16428428

申请日：2019-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Mark Andrew Shaw ,  Luca Maggi ,  Antonio Fincato

IPC: G02B6/42 ,  G02B6/122 ,  G02B6/12

Abstract: A method includes providing a semiconductor body comprising a surface with a recessed portion therein. The recessed portion includes a bottom surface. Optical waveguide cores in a first array of optical waveguide cores extend side-by-side at the bottom surface. The method further includes providing a second array of optical waveguide cores over the first array of optical waveguide cores. Optical waveguide cores in the second array of optical waveguide cores extend side-by-side. Each optical waveguide core in the second array of optical waveguide cores is in an adiabatic coupling relationship with a corresponding optical waveguide core in the first array of optical waveguide cores. The method also includes applying an optical waveguide cladding material over the second array of optical waveguide cores.

公开(公告)号：US20200025569A1

公开(公告)日：2020-01-23

申请号：US16511152

申请日：2019-07-15

Applicant: STMicroelectronics S.r.l.

Inventor： Antonio Fincato ,  Enrico Stefano Temporiti Milani ,  Maurizio Zuffada ,  Angelica Simbula

IPC: G01C19/72

Abstract: A device includes an optical resonator having four ports including a first port, a second port, a third port, and a fourth port. A first electronic circuit is configured to calculate a first information representative of a power difference between optical signals supplied by two of the four ports. A method of operating a device is also disclosed.

公开(公告)号：US10422968B2

公开(公告)日：2019-09-24

申请号：US15985860

申请日：2018-05-22

Applicant: STMicroelectronics S.r.l.

Inventor： Antonio Fincato ,  Luca Maggi

IPC: G02B6/42 ,  H01L23/58 ,  G02B6/30 ,  G02B6/28 ,  G02B6/12

Abstract: A semiconductor chip provides an optical medium for light propagation. The semiconductor chip includes a chip surface with an outer perimeter and a cavity in the chip surface. The cavity includes a peripheral wall and a bottom surface surrounded by the peripheral wall, the bottom surface adiabatically couplable to an optical waveguide. The cavity is located at an area of the chip surface spaced from the outer perimeter thereof.

公开(公告)号：US20180188368A1

公开(公告)日：2018-07-05

申请号：US15687033

申请日：2017-08-25

Applicant: STMicroelectronics S.r.l.

Inventor： Maurizio Zuffada ,  Angelo Dati ,  Salvatore Mario Rotolo ,  Melchiorre Bruccoleri ,  Antonio Fincato

IPC: G01S17/02 ,  G01S17/93 ,  G01S7/486

CPC classification number: G01S17/026 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/4868 ,  G01S7/487 ,  G01S17/102 ,  G01S17/936

Abstract: A system for detecting objects, for driver assistance equipment in motor vehicles for example, includes a transmitter for transmitting towards an object an optical signal having a signal energy. The optical signal transmitted includes at least one encoded pulse sequence with the signal energy distributed over the pulse sequence. A receiver receives an echo signal resulting from reflection of the optical signal at the object with the time delay of the echo signal is indicative of the distance to the object.

公开(公告)号：US09391708B2

公开(公告)日：2016-07-12

申请号：US14714582

申请日：2015-05-18

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Antonio Fincato ,  Salvatore Mario Rotolo ,  Enrico Stefano Temporiti Milani ,  Maurizio Zuffada

IPC: H04B10/00 ,  H04B10/40 ,  H04B10/70 ,  H04B10/50 ,  H05K3/30 ,  H04B10/80

CPC classification number: H04B10/40 ,  H04B10/503 ,  H04B10/70 ,  H04B10/801 ,  H05K3/30 ,  Y10T29/49131

Abstract: An intra-board chip-to-chip optical communications system has a high bit rate and high data throughput based on the use of a silicon photonic interposer. The system includes a multi-substrate electro-optical structure for communications with CMOS and/or BiCMOS IC chips of a PCB. The structure includes a multi-chip module primary substrate mounted over the supporting PCB. The multi-chip module primary substrate implements high frequency electrical interconnections between transceiver circuit chips, mounted on the silicon photonic interposer, and the IC chips.

Abstract translation: 基于硅光子插入器的使用，板内芯片到芯片的光通信系统具有高比特率和高数据吞吐量。 该系统包括用于与PCB的CMOS和/或BiCMOS IC芯片通信的多基板电光结构。 该结构包括安装在支撑PCB上的多芯片模块主要基板。 多芯片模块主要基板在安装在硅光子插入器上的收发器电路芯片和IC芯片之间实现高频电互连。