公开(公告)号：US10958995B2

公开(公告)日：2021-03-23

申请号：US16701588

申请日：2019-12-03

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04B10/071 ,  H04Q11/00 ,  H04B10/079 ,  H04B10/077

Abstract: Disclosed is a method for determining the link latency of an optical transmission link which includes an end node at each end and one or more pass-through nodes. Each pair of neighboring nodes is connected, at a connection port of each node, by an optical connecting path. Each pass-through node includes an optical pass-through path between its connection ports. The optical connecting paths and optical pass-through paths form an optical link path. A delimiter device includes a delimiter element provided at each connection port of each node. The delimiter element forms a demarcation within the optical link path. According to the method the following steps are carried out: measuring, for each pair of neighboring nodes, a section latency by transmitting a section probe signal from a first one of the pair of nodes to the second one of the pair of nodes; measuring, at the first node, a first time delay of a first reflection signal, which is created by the delimiter element of the delimiter device of the first node by reflecting a power portion of the section probe signal, and a second time delay of a second reflection signal, which is created by the delimiter element of the delimiter device of the second node by reflecting a power portion of the section probe signal received from the first node; and calculating the section latency as half the difference between the second time delay and the first time delay; determining, for each pass-through node either theoretically or by measurement, a pass-through latency of an internal optical pass-through path between the delimiter elements of the delimiter devices of the respective pass-through node; and adding all section latencies and pass-through latencies in order to obtain the link latency of the optical link path.

公开(公告)号：US10932018B2

公开(公告)日：2021-02-23

申请号：US16694654

申请日：2019-11-25

Applicant: ADVA Optical Networking SE

Inventor： Oliver Bleck

IPC: H01Q11/00 ,  H04J3/16 ,  H04Q11/00

Abstract: A method for removing static differential delays resulting from an independent transport of the client signals of a client signal bundle through an optical transport network, OTN, which comprises OTN mappers mapping received client signals to ODU signals transported to OTN demappers demapping received ODU signals to client signals, wherein a process slave, PS, at the OTN mapper end of said OTN network supplies continuously or in response to a received request information about timing relations between the client signals of said client signal bundle to a process master, PM, at the OTN demapper end of said OTN network used by the process master, PM, to remove the static differential delays between the client signals of the respective client signal bundle.

公开(公告)号：US10914898B2

公开(公告)日：2021-02-09

申请号：US15988379

申请日：2018-05-24

Applicant: ADVA Optical Networking SE

Inventor： Benjamin Wohlfeil

IPC: G02B6/30 ,  G02B6/00 ,  G02B6/12 ,  G02B6/36 ,  G02B6/42

Abstract: A photonic chip includes a connecting means, a substrate, and a waveguide layer. The photonic integrated waveguide and the optical fiber each have a front end portion. The connecting means includes a groove configured to receive the front end portion of the optical fiber. The groove is essentially U-shaped in its cross section, and the groove has a bottom surface and two inner side surfaces. A least one of both inner side surfaces of the U-shaped groove has a coating of an elastic material configured to hold in place the optical fiber after it is inserted into the groove. The invention further relates to an optical device which includes a photonic chip and an optical fiber, as well as a method or production of such a photonic chip.

公开(公告)号：US10754042B2

公开(公告)日：2020-08-25

申请号：US15657688

申请日：2017-07-24

Applicant: ADVA Optical Networking SE

Inventor： Kenneth Hann

IPC: G01S19/22 ,  H01Q9/04 ,  G01S19/42 ,  G01S19/01 ,  G01S19/39

Abstract: A device for producing timing information comprises equipment (101) that extracts first preliminary timing information from a first circular polarized component of a radio signal and second preliminary timing information from a second circular polarized component of the radio signal. The second circular polarized component has an opposite handedness and a time-delay with respect to the first circular polarized component. The device comprises a processing system (102) that produces the timing information based on the first preliminary timing information and/or the second preliminary timing information, and uses stored correction data for reducing the effect of the time-delay on the timing information when using the second preliminary timing information for producing the timing information. Thus, the timing information corresponds to the first preliminary timing information also when the timing information is produced based on the second preliminary timing information.

公开(公告)号：US10700917B2

公开(公告)日：2020-06-30

申请号：US15947766

申请日：2018-04-06

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe ,  Michael Huthart

IPC: H04L12/24 ,  G06Q10/00 ,  G06Q10/08 ,  H04L29/08

Abstract: A life cycle network management system for performing life cycle management of distributed network devices, each network device comprising a communication link to a central network management unit and an attached transponder configured to store life cycle data of the network device updated by said network device, wherein if the communication link between the network device and the central network management unit is at least temporarily unavailable the updated life cycle data of the network device stored in the attached transponder is read by an interrogation unit of the life cycle network management system and processed to provide a life cycle management result.

公开(公告)号：US10693717B2

公开(公告)日：2020-06-23

申请号：US15888013

申请日：2018-02-03

Applicant: ADVA Optical Networking SE

Inventor： William Blackert ,  Brian Van Voorhis ,  Robert Woods

IPC: H04L12/24 ,  G06F9/4401

Abstract: Process to associate a set of physical ports on a physical device with a set of software virtual interfaces. Process includes placing the set of software virtual interfaces to be associated with a set of N physical ports in an enabled state which has a first link state when no activation device is connected to a particular software virtual interface and a second link state when an activation device is connected to the particular software virtual interface. Connecting an activation device such as a loopback connector to a physical port to shift the software virtual interface to the second link state to map that particular physical port to that particular software virtual interface.

公开(公告)号：US20190261071A1

公开(公告)日：2019-08-22

申请号：US16278607

申请日：2019-02-18

Applicant: ADVA Optical Networking SE

Inventor： Danish Rafique ,  Thomas Szyrkowiec ,  Joerg-Peter Elbers

IPC: H04Q11/00 ,  G06N3/08 ,  G06N3/04

Abstract: An apparatus and method for optimizing dynamically the performance of an optical network, said apparatus comprising at least one learning engine adapted to update a learning model in response to network metrics of said optical network collected during operation of said optical network, wherein the updated learning model is used to generate channel rank information for network channels; and a recommendation engine adapted to change a network channel throughput, a signal path and/or a spectral location of at least one network channel based on the channel rank information generated by the learning model of said learning engine.

公开(公告)号：US10367597B2

公开(公告)日：2019-07-30

申请号：US15636956

申请日：2017-06-29

Applicant: ADVA Optical Networking SE

Inventor： Stephan Pachnicke

IPC: H04J14/02 ,  H04Q11/00

Abstract: A method for establishing an embedded optical communication channel in an optical WDM transmission system including: creating, at the central network device, a broad-band optical signal, supplying the broadband optical signal, transmitting the broadband optical signal and the plurality of second optical channel signals to an optical demultiplexer device, transmitting an optical signal consisting of a dedicated second optical channel signal and a filtered broadband optical signal; receiving the optical signal and creating a corresponding electrical receive signal and extracting the electrical signal corresponding to the filtered broadband optical signal from the electrical receive signal and detecting whether the electrical signal contains information intended for the respective first channel transceiver.

公开(公告)号：US10355784B2

公开(公告)日：2019-07-16

申请号：US15685141

申请日：2017-08-24

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Christoph Wagner

IPC: H04B10/516 ,  H04J14/02 ,  H04B10/50 ,  H04B10/556

Abstract: A method for creating an optical binary digital transmit signal to be supplied to an optical transmission link including: operating an optical transmitter in such a state that mode hopping occurs between a predefined first and a predefined second optical mode of the optical transmitter if a binary digital modulation signal is supplied to the optical transmitter and creating a modulated optical output signal of the optical transmitter corresponding to the binary digital modulation signal supplied to the optical transmitter. The modulated optical output signal is optically filtered in such a way that at least a portion of the optical power spectrum of the modulated optical output signal caused by a selected one of the first and second optical modes is suppressed or at least substantially attenuated.

公开(公告)号：US20190165861A1

公开(公告)日：2019-05-30

申请号：US15827928

申请日：2017-11-30

Applicant: ADVA Optical Networking SE

Inventor： Sorin Tibuleac ,  Steven Searcy

IPC: H04B10/294 ,  H03G3/30 ,  H04J14/02

Abstract: An apparatus for automatic amplifier gain setting of an optical amplifier, said apparatus comprising an optical channel counter, OCC, unit configured to detect a number of channels present in an optical transmission spectrum; a determination unit configured to determine an average power per channel calculated by dividing a measured total power of a signal input and/or signal output of the optical amplifier by the number of channels detected by said optical channel counter, OCC, unit and a gain adjustment unit configured to adjust the amplifier gain of said optical amplifier automatically depending on a calculated power difference between a predetermined desired power per channel and the determined average power per channel provided by said determination unit.