公开(公告)号：US11632175B2

公开(公告)日：2023-04-18

申请号：US17470650

申请日：2021-09-09

Applicant: Juniper Networks, Inc.

Inventor： Domenico Di Mola ,  Steven B. Alleston ,  Zhen Qu ,  Ryan Holmes ,  Jeffery J. Maki ,  Chul Soo Park ,  Yang Yue ,  Jon J. Anderson

IPC: H04B10/2581 ,  G02B6/42 ,  H01S5/40 ,  H04B10/40 ,  H04B10/50 ,  H04B10/516 ,  H04B10/60 ,  H04J14/04

Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.

公开(公告)号：US10797791B2

公开(公告)日：2020-10-06

申请号：US16718715

申请日：2019-12-18

Applicant: Juniper Networks, Inc.

Inventor： Massimiliano Salsi ,  Domenico Di Mola ,  Gert Grammel

IPC: H04J14/00 ,  H04B10/077 ,  H04B10/572

Abstract: A method may include causing a signal to be transmitted that includes a plurality of wavelengths. The signal may be transmitted via an optical fiber that is associated with a particular wavelength. The particular wavelength may be included in the plurality of wavelengths. The method may include filtering the signal, based on the particular wavelength, to generate a filtered signal. The filtered signal may include the particular wavelength. The method may include detecting the filtered signal in association with the optical fiber. The method may include determining the particular wavelength based on the filtered signal. The method may include storing or providing information identifying at least one of the particular wavelength, the optical fiber, or a transmitter that transmitted the signal.

公开(公告)号：US12267111B2

公开(公告)日：2025-04-01

申请号：US18197266

申请日：2023-05-15

Applicant: Juniper Networks, Inc.

Inventor： Domenico Di Mola ,  Steven B. Alleston ,  Zhen Qu ,  Ryan Holmes

IPC: H04B10/40 ,  H04L1/00 ,  H04L27/34

Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.

公开(公告)号：US11159238B1

公开(公告)日：2021-10-26

申请号：US16990348

申请日：2020-08-11

Applicant: Juniper Networks, Inc.

Inventor： Domenico Di Mola ,  Steven B. Alleston ,  Zhen Qu ,  Ryan Holmes ,  Jeffery J. Maki ,  Chul Soo Park ,  Yang Yue ,  Jon J. Anderson

IPC: H04B10/2581 ,  H01S5/40 ,  G02B6/42 ,  H04B10/60 ,  H04B10/50 ,  H04B10/516 ,  H04B10/40 ,  H04J14/04

Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.

公开(公告)号：US10284290B2

公开(公告)日：2019-05-07

申请号：US14871586

申请日：2015-09-30

Applicant: Juniper Networks, Inc.

Inventor： Gert Grammel ,  Domenico Di Mola ,  Steven B. Alleston

IPC: H04B10/038 ,  H04B10/077 ,  H04L12/24 ,  H04L12/707 ,  H04Q11/00 ,  H04J14/02

Abstract: In some examples, a network device comprises one or more processors operably coupled to a memory, and a routing unit configured for execution by the one or more processors to route data traffic on a layer 3 network overlaying an optical transport system; receive optical supervisory channel data for an optical supervisory channel of the optical transport system; determine the optical supervisory channel data indicates an event affecting transmission or detection of a signal transported by a wavelength, the wavelength traversing an optical fiber of the optical transport system and underlying a link of the layer 3 network; and reconfigure, in response to determining the optical supervisory channel data indicates the event, a configuration of the network device to modify routing operations of the network device with respect to the data traffic on the layer 3 network.

公开(公告)号：US10014937B1

公开(公告)日：2018-07-03

申请号：US15067619

申请日：2016-03-11

Applicant: Juniper Networks, Inc.

Inventor： Domenico Di Mola ,  Gert Grammel

IPC: H04L29/06 ,  H04B10/079 ,  H04L7/00

CPC classification number: H04L63/1416 ,  H04B10/85 ,  H04J3/0667 ,  H04J3/14 ,  H04L63/0428 ,  H04L63/061 ,  H04L2463/061

Abstract: A device may receive, via a first optical supervisory channel, a first timing signal from a first network node. The first timing signal may be generated by a first clock, of the first network node, and may be used to synchronize the first clock, of the first network node, and a second clock of a second network node. The device may determine a parameter value based on the first timing signal, and may determine whether the parameter value satisfies a threshold value. The device may selectively transmit, via a second optical supervisory channel, a second timing signal to the second network node based on determining whether the parameter value satisfies the threshold value. The second timing signal may be used to synchronize the second clock, of the second network node, with the first clock of the first network node.

公开(公告)号：US20170093487A1

公开(公告)日：2017-03-30

申请号：US14871586

申请日：2015-09-30

Applicant: Juniper Networks, Inc.

Inventor： Gert Grammel ,  Domenico Di Mola ,  Steven B. Alleston

IPC: H04B10/077 ,  H04B10/038 ,  H04L12/24 ,  H04Q11/00 ,  H04L12/707

CPC classification number: H04B10/0777 ,  H04B10/038 ,  H04B10/0773 ,  H04J14/021 ,  H04J14/0267 ,  H04L41/06 ,  H04L41/0672 ,  H04L45/22 ,  H04Q11/0066 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0081

Abstract: In some examples, a network device comprises one or more processors operably coupled to a memory, and a routing unit configured for execution by the one or more processors to route data traffic on a layer 3 network overlaying an optical transport system; receive optical supervisory channel data for an optical supervisory channel of the optical transport system; determine the optical supervisory channel data indicates an event affecting transmission or detection of a signal transported by a wavelength, the wavelength traversing an optical fiber of the optical transport system and underlying a link of the layer 3 network; and reconfigure, in response to determining the optical supervisory channel data indicates the event, a configuration of the network device to modify routing operations of the network device with respect to the data traffic on the layer 3 network.