公开(公告)号：US12081276B2

公开(公告)日：2024-09-03

申请号：US17133360

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Meer Nazmus Sakib ,  Peicheng Liao ,  Ranjeet Kumar ,  Duanni Huang ,  Haisheng Rong ,  Harel Frish ,  John Heck ,  Chaoxuan Ma ,  Hao Li ,  Ganesh Balamurugan

IPC: H04B10/61

CPC classification number: H04B10/6165 ,  H04B10/612 ,  H04B10/6164

Abstract: Embodiments described herein may be related to apparatuses, processes, and techniques related to coherent optical receivers, including coherent receivers with integrated all-silicon waveguide photodetectors and tunable local oscillators implemented within CMOS technology. Embodiments are also directed to tunable silicon hybrid lasers with integrated temperature sensors to control wavelength. Embodiments are also directed to post-process phase correction of optical hybrid and nested I/Q modulators. Embodiments are also directed to demultiplexing photodetectors based on multiple microrings. In embodiments, all components may be implements on a silicon substrate. Other embodiments may be described and/or claimed.

公开(公告)号：US11137283B2

公开(公告)日：2021-10-05

申请号：US16402990

申请日：2019-05-03

Applicant: Intel Corporation

Inventor： Ganesh Balamurugan ,  Haisheng Rong ,  Meer Nazmus Sakib ,  Hao Li

IPC: G01J1/44 ,  G01J1/16 ,  G01J1/42 ,  H01L31/0203 ,  G02B6/12 ,  G01J1/02 ,  G01J3/26

Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for a photonic apparatus with a photodetector with bias control to provide substantially constant responsivity. The apparatus includes a first photodetector, to receive an optical input and provide a corresponding electrical output; a second photodetector coupled with the first photodetector, wherein the second photodetector is free from receipt of the optical input; and circuitry coupled with the first and second photodetectors, to generate a bias voltage, based at least in part on a dark current generated by the second photodetector in an absence of the optical input, and provide the generated bias voltage to the first photodetector. The first photodetector is to provide a substantially constant ratio of the electrical output to optical input in response to the provision of the generated bias voltage. Additional embodiments may be described and claimed.

公开(公告)号：US20190257688A1

公开(公告)日：2019-08-22

申请号：US16402990

申请日：2019-05-03

Applicant: Intel Corporation

Inventor： Ganesh Balamurugan ,  Haisheng Rong ,  Meer Nazmus Sakib ,  Hao Li

IPC: G01J1/16 ,  G01J1/42 ,  G02B6/12 ,  H01L31/0203

Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for a photonic apparatus with a photodetector with bias control to provide substantially constant responsivity. The apparatus includes a first photodetector, to receive an optical input and provide a corresponding electrical output; a second photodetector coupled with the first photodetector, wherein the second photodetector is free from receipt of the optical input; and circuitry coupled with the first and second photodetectors, to generate a bias voltage, based at least in part on a dark current generated by the second photodetector in an absence of the optical input, and provide the generated bias voltage to the first photodetector. The first photodetector is to provide a substantially constant ratio of the electrical output to optical input in response to the provision of the generated bias voltage. Additional embodiments may be described and claimed.

公开(公告)号：US20240388366A1

公开(公告)日：2024-11-21

申请号：US18787886

申请日：2024-07-29

Applicant: Intel Corporation

Inventor： Meer Nazmus Sakib ,  Peicheng Liao ,  Ranjeet Kumar ,  Duanni Huang ,  Haisheng Rong ,  Harel Frish ,  John Heck ,  Chaoxuan Ma ,  Hao Li ,  Ganesh Balamurugan

IPC: H04B10/61

Abstract: Embodiments described herein may be related to apparatuses, processes, and techniques related to coherent optical receivers, including coherent receivers with integrated all-silicon waveguide photodetectors and tunable local oscillators implemented within CMOS technology. Embodiments are also directed to tunable silicon hybrid lasers with integrated temperature sensors to control wavelength. Embodiments are also directed to post-process phase correction of optical hybrid and nested I/Q modulators. Embodiments are also directed to demultiplexing photodetectors based on multiple microrings. In embodiments, all components may be implements on a silicon substrate. Other embodiments may be described and/or claimed.

公开(公告)号：US11754861B2

公开(公告)日：2023-09-12

申请号：US17360160

申请日：2021-06-28

Applicant: INTEL CORPORATION

Inventor： Taehwan Kim ,  Ganesh Balamurugan ,  Hao Li ,  Hasitha Jayatilleka

IPC: G02F1/01

CPC classification number: G02F1/0136

Abstract: Embodiments include apparatuses, methods, and systems including a dynamic polarization controller (DPC) to receive a first light beam and a second light beam, to adjust a rotation of a state of polarization (SOP) of the first light beam and the second light beam to generate a third light beam and a fourth light beam, under the control of a first control signal, a second control signal, and a third control signal. The first control signal may be related to a phase difference between the third light beam and the fourth light beam, the second control signal may be related to an intensity difference between the third light beam and the fourth light beam, and the third control signal may be related to a rotation of a SOP of the third light beam and the fourth light beam. Other embodiments may also be described and claimed.

公开(公告)号：US10606004B2

公开(公告)日：2020-03-31

申请号：US15995694

申请日：2018-06-01

Applicant: Intel Corporation

Inventor： Jahnavi Sharma ,  Ganesh Balamurugan ,  Hao Li ,  Meer Nazmus Sakib ,  Haisheng Rong

IPC: G02B6/43 ,  H01L27/146 ,  H04B10/67 ,  G02B6/12 ,  H01L31/12 ,  H01L31/14 ,  H04B10/66

Abstract: Embodiments herein may relate to an optoelectronic receiver that includes a photonic integrated circuit (PIC) coupled with a light source. Respective PIC sections of the PIC may include a photodiode and a junction capacitor. The optoelectronic receiver may further include an electronic integrated circuit (EIC) coupled with the PIC. Respective EIC sections of the EIC may be communicatively coupled to respective ones of the PIC sections. Other embodiments may be described and/or claimed.

公开(公告)号：US12222552B2

公开(公告)日：2025-02-11

申请号：US17133347

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Duanni Huang ,  Saeed Fathololoumi ,  Meer Nazmus Sakib ,  Mohammad Montazeri Najafabadi ,  Chaoxuan Ma ,  David Hui ,  Taehwan Kim ,  Ling Liao ,  Hao Li ,  Ganesh Balamurugan ,  Haisheng Rong ,  Aliasghar Eftekhar

IPC: H04B10/66 ,  G02B6/26 ,  G02B6/27 ,  H04J14/06

Abstract: The present disclosure is directed to photonic wavelength division multiplexing (WDM) receivers with polarization diversity and/or low reflectance. In embodiments, a WDM receiver is provided with a splitter, a plurality of waveguides and a plurality of photodetectors in series. The waveguides having particular equal path lengths relationship from the splitter to respective ones of the photodetectors. In other embodiments, the WDM receiver is provided with a splitter, a looped waveguide, a plurality of photodetectors, and a plurality of variable optical attenuators (VOAs). The VOAs are configured to suppress reflection of signal beams back to the transmitter. In various embodiments, the WDM receiver is a receiver sub-assembly of a silicon photonic transceiver disposed in a silicon package. Other embodiments may be described and/or claimed.

公开(公告)号：US20210325701A1

公开(公告)日：2021-10-21

申请号：US17360160

申请日：2021-06-28

Applicant: INTEL CORPORATION

Inventor： Taehwan Kim ,  Ganesh Balamurugan ,  Hao Li

IPC: G02F1/01

Abstract: Embodiments include apparatuses, methods, and systems including a dynamic polarization controller (DPC) to receive a first light beam and a second light beam, to adjust a rotation of a state of polarization (SOP) of the first light beam and the second light beam to generate a third light beam and a fourth light beam, under the control of a first control signal, a second control signal, and a third control signal. The first control signal may be related to a phase difference between the third light beam and the fourth light beam, the second control signal may be related to an intensity difference between the third light beam and the fourth light beam, and the third control signal may be related to a rotation of a SOP of the third light beam and the fourth light beam. Other embodiments may also be described and claimed.

公开(公告)号：US11126018B2

公开(公告)日：2021-09-21

申请号：US15834954

申请日：2017-12-07

Applicant: INTEL CORPORATION

Inventor： Taehwan Kim ,  Ganesh Balamurugan ,  Hao Li ,  Hasitha Jayatilleka

IPC: G02F1/01

Abstract: Embodiments include apparatuses, methods, and systems including a dynamic polarization controller (DPC) to receive a first light beam and a second light beam, to adjust a rotation of a state of polarization (SOP) of the first light beam and the second light beam to generate a third light beam and a fourth light beam, under the control of a first control signal, a second control signal, and a third control signal. The first control signal may be related to a phase difference between the third light beam and the fourth light beam, the second control signal may be related to an intensity difference between the third light beam and the fourth light beam, and the third control signal may be related to a rotation of a SOP of the third light beam and the fourth light beam. Other embodiments may also be described and claimed.

公开(公告)号：US20190049680A1

公开(公告)日：2019-02-14

申请号：US15995694

申请日：2018-06-01

Applicant: Intel Corporation

Inventor： Jahnavi Sharma ,  Ganesh Balamurugan ,  Hao Li ,  Meer Nazmus Sakib ,  Haisheng Rong

IPC: G02B6/43 ,  H01L27/146 ,  H01L31/12 ,  G02B6/12 ,  H04B10/67

Abstract: Embodiments herein may relate to an optoelectronic receiver that includes a photonic integrated circuit (PIC) coupled with a light source. Respective PIC sections of the PIC may include a photodiode and a junction capacitor. The optoelectronic receiver may further include an electronic integrated circuit (EIC) coupled with the PIC. Respective EIC sections of the EIC may be communicatively coupled to respective ones of the PIC sections. Other embodiments may be described and/or claimed.