公开(公告)号：US20190260476A1

公开(公告)日：2019-08-22

申请号：US15900233

申请日：2018-02-20

Applicant: Futurewei Technologies, Inc.

Inventor： Xiao Andy Shen ,  An Li ,  Hongzhen Wei ,  Samina Chowdhury ,  Feng Zhang ,  YuSheng Bai

IPC: H04B10/61 ,  H04B7/0413

Abstract: An integrated coherent receiver that is configured to receive an optical signal and receive a local oscillator (LO) source from a remote location. The integrated coherent receiver is configured to extract phase and frequency information carried by the optical signal using the LO source from the remote location.

公开(公告)号：US09680574B1

公开(公告)日：2017-06-13

申请号：US14954473

申请日：2015-11-30

Applicant: Futurewei Technologies, Inc.

Inventor： Murali Krishnan ,  Qing Guo ,  Samina Chowdhury ,  Fei Zhu ,  Yu Sheng Bai

IPC: H04B10/61 ,  H04B3/06 ,  H04B1/04 ,  H04B10/2513 ,  H04B10/2569 ,  H04L25/02

CPC classification number: H04B10/2513 ,  H04B10/2569 ,  H04B10/29 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03159

Abstract: An optical transceiver in an optical communications network, comprising a receiver configured to receive an optical signal comprising an X-polarization component that comprises a first frame and a Y-polarization component that comprises a second frame. The optical transceiver also comprises a processor coupled to the receiver and configured to determine, in a time domain, a phase estimate according to the first frame and the second frame, determine, in a frequency domain, a channel estimate for the optical signal according to a relationship between the first frame, the second frame, and the phase estimate, and determine a compensated optical signal according to the channel estimate. The optical transceiver further comprises a transmitter coupled to the processor and configured to transmit the compensated optical signal to a downstream component in the optical communications network.

公开(公告)号：US10651947B2

公开(公告)日：2020-05-12

申请号：US15900233

申请日：2018-02-20

Applicant: Futurewei Technologies, Inc.

Inventor： Xiao Andy Shen ,  An Li ,  Hongzhen Wei ,  Samina Chowdhury ,  Feng Zhang ,  YuSheng Bai

IPC: H04B10/60 ,  H04B10/61 ,  H04B7/0413

Abstract: An integrated coherent receiver that is configured to receive an optical signal and receive a local oscillator (LO) source from a remote location. The integrated coherent receiver is configured to extract phase and frequency information carried by the optical signal using the LO source from the remote location.

公开(公告)号：US20170155448A1

公开(公告)日：2017-06-01

申请号：US14954473

申请日：2015-11-30

Applicant: Futurewei Technologies, Inc.

Inventor： Murali Krishnan ,  Qing Guo ,  Samina Chowdhury ,  Fei Zhu ,  Yu Sheng Bai

IPC: H04B10/2513 ,  H04L25/02 ,  H04B10/2569

CPC classification number: H04B10/2513 ,  H04B10/2569 ,  H04B10/29 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03159

Abstract: An optical transceiver in an optical communications network, comprising a receiver configured to receive an optical signal comprising an X-polarization component that comprises a first frame and a Y-polarization component that comprises a second frame. The optical transceiver also comprises a processor coupled to the receiver and configured to determine, in a time domain, a phase estimate according to the first frame and the second frame, determine, in a frequency domain, a channel estimate for the optical signal according to a relationship between the first frame, the second frame, and the phase estimate, and determine a compensated optical signal according to the channel estimate. The optical transceiver further comprises a transmitter coupled to the processor and configured to transmit the compensated optical signal to a downstream component in the optical communications network.