公开(公告)号：US11881898B2

公开(公告)日：2024-01-23

申请号：US18091838

申请日：2022-12-30

Applicant: Infinera Corporation

Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven Joseph Hand ,  Han Henry Sun

IPC: H04B10/61 ,  H04B10/2575 ,  H04J14/02 ,  H04B10/50 ,  H04Q11/00 ,  H04B10/516

CPC classification number: H04B10/612 ,  H04B10/25752 ,  H04B10/505 ,  H04B10/506 ,  H04B10/516 ,  H04B10/616 ,  H04B10/65 ,  H04J14/0201 ,  H04J14/0224 ,  H04J14/0246 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/0067

Abstract: Optical network systems and components are disclosed, including a transmitter comprising a digital signal processor that receives data; circuitry that generate a plurality of electrical signals based on the data; a plurality of filters, each of which receiving a corresponding one of the plurality of electrical signals, a plurality of roll-off factors being associated with a respective one of the plurality of filters; a plurality of DACs that receive outputs from the digital signal processor, the outputs being indicative of outputs from the plurality of filters; a laser that supplies light; and a modulator that receives the light and outputs from the DACs, and supplies a plurality of optical subcarriers based on the outputs, such that one of the optical subcarriers has a frequency bandwidth that is wider than remaining ones of the optical subcarriers, said one of the optical subcarriers carrying information for clock recovery.

公开(公告)号：US11569915B2

公开(公告)日：2023-01-31

申请号：US17077845

申请日：2020-10-22

Applicant: Infinera Corporation

Inventor： Steven Joseph Hand

IPC: H04B10/548 ,  H04B10/61 ,  H04B10/50 ,  H04B10/54 ,  H04B10/032 ,  H04J14/02

Abstract: An example system includes a first network device having first circuitry. The first network device is configured to perform operations including receiving data to be transmitted to a second network device over an optical communications network, and transmitting first information and second information to the second device. The first information is indicative of the data, and is transmitted using a first communications link of the optical communications network and using a first subset of optical subcarriers. The second information is indicative of the data, and is transmitted using a second communications link of the optical communications network and using a second subset of optical subcarriers. The first subset of optical subcarriers is different from the second subset of optical subcarriers.

公开(公告)号：US20230006737A1

公开(公告)日：2023-01-05

申请号：US17941174

申请日：2022-09-09

Applicant: Infinera Corporation

Inventor： Amir Jafari ,  Kuang-Tsan Wu ,  David F. Welch ,  Steven Joseph Hand ,  Mohamed Osman

IPC: H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/08 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04Q11/00 ,  H04B10/2575 ,  H04J99/00

Abstract: A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive user data and provide electrical signals based on the data; and a modulator operable to modulate the optical signal to provide optical subcarriers based on the electrical signals. A first one of the subcarriers carriers carries first TDMA encoded information and second TDMA encoded information, such that the first TDMA encoded information is indicative of a first portion of the data and is carried by the first one of the subcarriers during a first time slot, and the second TDMA encoded information is indicative of a second portion of the data and is carried by the first one of the subcarriers during a second time slot. The first TDMA encoded information is associated with a first node remote from the transmitter and the second TDMA encoded information is associated with a second node remote from the transmitter. A second one of the subcarriers carries third information that is not TDMA encoded, the third information being associated with a third node remote from the transmitter. A receiver and system also are described.

公开(公告)号：US11539443B2

公开(公告)日：2022-12-27

申请号：US17076431

申请日：2020-10-21

Applicant: Infinera Corporation

Inventor： Steven Joseph Hand

IPC: H04B10/548 ,  H04B10/61 ,  H04B10/50 ,  H04B10/54 ,  H04B10/032 ,  H04J14/02

Abstract: An example system includes a first network device having first circuitry. The first network device is configured to perform operations including receiving data to be transmitted to a second network device over an optical communications network, and transmitting first information and second information to the second device. The first information is indicative of the data, and is transmitted using a first communications link of the optical communications network and using a first subset of optical subcarriers. The second information is indicative of the data, and is transmitted using a second communications link of the optical communications network and using a second subset of optical subcarriers. The first subset of optical subcarriers is different from the second subset of optical subcarriers.

公开(公告)号：US11451292B2

公开(公告)日：2022-09-20

申请号：US16809441

申请日：2020-03-04

Applicant: Infinera Corporation

Inventor： Amir Jafari ,  Kuang-Tsan Wu ,  David F. Welch ,  Steven Joseph Hand ,  Mohamed Osman

IPC: H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/08 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04J99/00 ,  H04Q11/00 ,  H04B10/2575

Abstract: A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive user data and provide electrical signals based on the data; and a modulator operable to modulate the optical signal to provide optical subcarriers based on the electrical signals. A first one of the subcarriers carriers carries first TDMA encoded information and second TDMA encoded information, such that the first TDMA encoded information is indicative of a first portion of the data and is carried by the first one of the subcarriers during a first time slot, and the second TDMA encoded information is indicative of a second portion of the data and is carried by the first one of the subcarriers during a second time slot. The first TDMA encoded information is associated with a first node remote from the transmitter and the second TDMA encoded information is associated with a second node remote from the transmitter. A second one of the subcarriers carries third information that is not TDMA encoded, the third information being associated with a third node remote from the transmitter. A receiver and system also are described.

公开(公告)号：US11258508B2

公开(公告)日：2022-02-22

申请号：US16809426

申请日：2020-03-04

Applicant: Infinera Corporation

Inventor： Amir Jafari ,  Kuang-Tsan Wu ,  David F. Welch ,  Steven Joseph Hand ,  Mohamed Osman

IPC: H04J14/08 ,  H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04J99/00 ,  H04Q11/00 ,  H04B10/2575

Abstract: A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive data and provide a plurality of electrical signals based on the data; and a modulator operable to modulate the optical signal to provide a plurality of optical subcarriers based on the plurality of electrical signals. One of the plurality of subcarriers carries first information indicative of a first portion of the data in a first time slot and second information indicative of a second portion of the data in a second time slot. The first information is associated with a first node remote from the transmitter and the second information is associated with a second node remote from the transmitter. A receiver as well as a system also are described.

公开(公告)号：US11251878B2

公开(公告)日：2022-02-15

申请号：US16270576

申请日：2019-02-07

Applicant: Infinera Corporation

Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven Joseph Hand ,  Han Henry Sun

IPC: H04B10/61 ,  H04B10/2575 ,  H04J14/02 ,  H04B10/50 ,  H04B10/516

Abstract: Optical network systems and components are disclosed including a transmitter comprising a digital signal processor receiving a plurality of independent data streams, the digital signal processor supplying outputs based on the plurality of independent data streams, the digital signal processor comprising a plurality of pulse shape filters corresponding to the plurality of independent data streams, the plurality of pulse shape filters configured to filter the independent data streams to produce a first subcarrier having a first frequency bandwidth and a second subcarrier having a second frequency bandwidth different than the first frequency bandwidth for the outputs.

公开(公告)号：US20210367668A1

公开(公告)日：2021-11-25

申请号：US17134023

申请日：2020-12-24

Applicant: Infinera Corporation

Inventor： Steven Joseph Hand ,  Tulasi Veguru ,  Prasad Paranjape ,  Han Henry Sun

IPC: H04B10/118 ,  H04B10/29 ,  H04B10/40

Abstract: An example apparatus includes a first communications module having a first transceiver. The first communications module is operable to transmit, using the first transceiver, a plurality of first groups of optical subcarriers to a plurality of second communications modules via free-space optical communication. The first groups of optical subcarriers carry first data, and each of the first groups of optical subcarriers is associated, respectively, with a different one of the second communications modules. The first communications module is also operable to receive, using the first transceiver, plurality of second groups of optical subcarriers from the second communications modules via free-space optical communication. The second groups of optical subcarriers carry second data and each of the second groups of optical subcarriers is associated, respectively, with a different one of the second communications modules.

公开(公告)号：US20210111826A1

公开(公告)日：2021-04-15

申请号：US17076431

申请日：2020-10-21

Applicant: Infinera Corporation

Inventor： Steven Joseph Hand

IPC: H04J14/02

Abstract: An example system includes a first network device having first circuitry. The first network device is configured to perform operations including receiving data to be transmitted to a second network device over an optical communications network, and transmitting first information and second information to the second device. The first information is indicative of the data, and is transmitted using a first communications link of the optical communications network and using a first subset of optical subcarriers. The second information is indicative of the data, and is transmitted using a second communications link of the optical communications network and using a second subset of optical subcarriers. The first subset of optical subcarriers is different from the second subset of optical subcarriers.

公开(公告)号：US20190245627A1

公开(公告)日：2019-08-08

申请号：US16270584

申请日：2019-02-07

Applicant: Infinera Corporation

Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven Joseph Hand ,  Han Henry Sun

IPC: H04B10/61 ,  H04J14/02 ,  H04B10/2575

CPC classification number: H04J14/0298 ,  H04B10/25752 ,  H04B10/505 ,  H04B10/516 ,  H04B10/611 ,  H04B10/612 ,  H04J14/0201

Abstract: Optical network systems and components are disclosed, including a transmitter comprising a digital signal processor receiving a plurality of independent data streams, and supplying a plurality of digital subcarrier outputs, based on the plurality of independent data streams, and configurable to vary the frequency spacing between two or more of the plurality of digital subcarrier outputs; the transmitter configured to output a modulated optical signal including a plurality of optical subcarriers based on the digital subcarrier outputs wherein based on first ones of the plurality of digital outputs, the first one of the plurality of subcarriers is spectrally spaced from the second one of the plurality subcarriers by a first gap, and based on second ones of the plurality of digital outputs, the first one of the plurality of subcarriers is spectrally spaced from the second one of the plurality of subcarriers by a second gap different than the first.