公开(公告)号：US10903910B2

公开(公告)日：2021-01-26

申请号：US16456761

申请日：2019-06-28

Applicant: Juniper Networks, Inc.

Inventor： Yang Yue ,  Qiang Wang ,  Zhen Qu ,  Xiao Han

IPC: H04B10/00 ,  H04B10/54 ,  H04L1/00 ,  H04J14/02 ,  H04B10/079 ,  H04J14/00

Abstract: A method includes modulating a digital signal via pulse amplitude modulation (PAM) and applying Nyquist shaping to the digital signal to generate a filtered digital signal. The method also includes converting the filtered digital signal into an analog signal and transmitting the analog signal in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.

公开(公告)号：US11177888B2

公开(公告)日：2021-11-16

申请号：US17132449

申请日：2020-12-23

Applicant: Juniper Networks, Inc.

Inventor： Yang Yue ,  Qiang Wang ,  Zhen Qu ,  Xiao Han

IPC: H04B10/00 ,  H04B10/54 ,  H04B10/079 ,  H04J14/02 ,  H04L1/00 ,  H04J14/00

Abstract: A method includes modulating a digital signal via pulse amplitude modulation (PAM) and applying Nyquist shaping to the digital signal to generate a filtered digital signal. The method also includes converting the filtered digital signal into an analog signal and transmitting the analog signal in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.

公开(公告)号：US11522616B2

公开(公告)日：2022-12-06

申请号：US17525489

申请日：2021-11-12

Applicant: Juniper Networks, Inc.

Inventor： Yang Yue ,  Qiang Wang ,  Zhen Qu ,  Xiao Han

IPC: H04B10/00 ,  H04B10/54 ,  H04B10/079 ,  H04J14/02 ,  H04L1/00 ,  H04J14/00

Abstract: A method includes applying, to a modulated digital signal, a forward error correction (FEC) including a low-density parity-check (LDPC) to produce a coded digital signal. Nyquist shaping is applied to the coded digital signal to generate a filtered digital signal. A representation of the filtered digital signal is transmitted in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.

公开(公告)号：US11937029B2

公开(公告)日：2024-03-19

申请号：US17392782

申请日：2021-08-03

Applicant: Juniper Networks, Inc.

Inventor： Zhen Qu ,  Xiao Han ,  Yang Yue

IPC: H04Q11/00 ,  G06N7/01 ,  H04B10/54 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  G06N7/01 ,  H04B10/54 ,  H04J14/02 ,  H04Q2011/0037

Abstract: An optical transmitter can generate probabilistically shaped quadrature amplitude modulation (PS-QAM) signaling for transmission over a fiber to a destination without optical amplification. The single fiber can transmit the PS-QAM signaling using dense wavelength division multiplexing having a relatively large number of channels that are closely spaced. A coherent receiver can receive the PS-QAM signaling for decoding without implementing chromatic dispersion compensation.

公开(公告)号：US20230043960A1

公开(公告)日：2023-02-09

申请号：US17392782

申请日：2021-08-03

Applicant: Juniper Networks, Inc.

Inventor： Zhen Qu ,  Xiao Han ,  Yang Yue

IPC: H04Q11/00 ,  H04J14/02 ,  H04B10/54 ,  G06N7/00

Abstract: An optical transmitter can generate probabilistically shaped quadrature amplitude modulation (PS-QAM) signaling for transmission over a fiber to a destination without optical amplification. The single fiber can transmit the PS-QAM signaling using dense wavelength division multiplexing having a relatively large number of channels that are closely spaced. A coherent receiver can receive the PS-QAM signaling for decoding without implementing chromatic dispersion compensation.