公开(公告)号：US11888529B2

公开(公告)日：2024-01-30

申请号：US17865835

申请日：2022-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Li ,  Xu Sun ,  Xiaolu Song

IPC: H04B10/04 ,  H04B10/556 ,  H04B10/40

CPC classification number: H04B10/556 ,  H04B10/40

Abstract: A coherent transmitter includes a first beam splitter that splits an input first optical signal to obtain a second optical signal and a third optical signal, a first modulator that modulates the second optical signal to obtain a first modulated signal, a phase shift adjustment unit that adjusts a phase of a first sub-signal in the first modulated signal and adjusts a phase of a fourth sub-signal in the phase-adjusted first sub-signal, a first beam combiner that combines a second sub-signal in the first modulated signal and the phase-adjusted fourth sub-signal to obtain a first combined signal, a first PD that performs optical-to-electrical conversion on the first combined signal to obtain a first electrical signal, and a controller that controls, based on the first electrical signal, a voltage applied to the phase shift adjustment unit.

公开(公告)号：US11843391B2

公开(公告)日：2023-12-12

申请号：US17448113

申请日：2021-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Sun ,  Jiao Wang ,  Yuchen Liu ,  Rui Li ,  Nguyen Binh Le

IPC: H03M1/06 ,  H03M1/08 ,  G02F7/00

CPC classification number: H03M1/089 ,  G02F7/00 ,  H03M1/0818 ,  H03M1/0863

Abstract: This application discloses a temperature feedback control apparatus, method. The method includes two electric switches, a feedback control unit and an optical component. A first electric switch is configured to control that only a first channel of at least two channels that correspond to the first electric switch is conducted at a moment, to feed back an optical signal of a target optical component connected to the first channel to the feedback control unit. The feedback control unit is configured to calculate temperature of the corresponding optical component based on an electrical signal converted from the optical signal, to obtain a control signal. The second electric switch is configured to control, when the first channel is conducted, that only the second channel is conducted, to transmit the control signal to the target optical component to adjust its temperature. The optical component connects to both the first and second channels.

公开(公告)号：US20230090402A1

公开(公告)日：2023-03-23

申请号：US18070160

申请日：2022-11-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Zhang ,  Xu Sun ,  Yanbo Li

IPC: H04J14/02

Abstract: A cluster light source and a method for generating a cluster light source is disclosed. A multi-wavelength cluster light source includes a light source outputting a plurality of single-wavelength continuous-wave light having different wavelengths in parallel, an optical multiplexer combining combine the plurality of single-wavelength continuous-wave light into one multi-wavelength continuous-wave light, an optical splitter, and an optical amplifier array. The optical splitter is configured to perform power beam splitting on the multi-wavelength continuous-wave light, to output a plurality of multi-wavelength continuous-wave light. The optical amplifier array amplifies the plurality of multi-wavelength continuous-wave light, to output a plurality of other multi-wavelength continuous-wave light. Optionally, the cluster light source further includes a backup light source and an optical switch array.

公开(公告)号：US20220138549A1

公开(公告)日：2022-05-05

申请号：US17648163

申请日：2022-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Nguyen Binh Le ,  Xu Sun ,  Jing Suo ,  Xiaolu Song

IPC: G06N3/067 ,  G06N3/04

Abstract: An apparatus for optical processing of a signal includes an optical sampler, an optical neural network and a phase shift controller. The optical sampler obtains parallel optical samples by sampling a continuous optical signal. The optical neural network optically processes the parallel optical samples and provides a final output optical signal resulting from the processing. The optical neural network includes interconnected optical neurons. Each of the optical neurons inputs multiple optical signals and outputs an optical signal which is a weighted sum of the input optical signals. The weightings are established by phase-shifting the input optical signals prior to the summation. The phase shift controller controls the phase-shifting so as to obtain required weightings for the input optical signals.

公开(公告)号：US20220352988A1

公开(公告)日：2022-11-03

申请号：US17865835

申请日：2022-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Li ,  Xu Sun ,  Xiaolu Song

IPC: H04B10/556 ,  H04B10/40

Abstract: A coherent transmitter includes a first beam splitter that splits an input first optical signal to obtain a second optical signal and a third optical signal, a first modulator that modulates the second optical signal to obtain a first modulated signal, a phase shift adjustment unit that adjusts a phase of a first sub-signal in the first modulated signal and adjusts a phase of a fourth sub-signal in the phase-adjusted first sub-signal, a first beam combiner that combines a second sub-signal in the first modulated signal and the phase-adjusted fourth sub-signal to obtain a first combined signal, a first PD that performs optical-to-electrical conversion on the first combined signal to obtain a first electrical signal, and a controller that controls, based on the first electrical signal, a voltage applied to the phase shift adjustment unit.