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公开(公告)号：US10932019B1
公开(公告)日：2021-02-23
申请号：US16730396
申请日：2019-12-30
Applicant: Xieon Networks S.à.r.l.
Abstract: An optical network includes an arrangement of optical nodes. An optical node of the arrangement, and corresponding method, perform optical connectivity discovery and negotiation-less optical fiber continuity verification in the optical network. An overall topology of optical connectivity provisioned for the arrangement is discovered by the optical node based on messages received from a management network communicatively coupling the optical nodes to each other. The optical node synchronizes, temporally and sequentially, with the other optical nodes based on the messages received, assigns fiber of the overall topology, based on a verification sequencing method, to verification slots of a verification sequence, and verifies continuity of fiber according to the verification slots of the verification sequence. The discovery, synchronization, and assignment operations enable the optical node and peer node to perform the optical fiber continuity verification in a symmetric, decentralized, and negotiation-less manner.
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公开(公告)号：US20190257715A1
公开(公告)日：2019-08-22
申请号：US16245851
申请日：2019-01-11
Applicant: Xieon Networks S.à.r.l.
Inventor： Mario LEIRIA , Tiago MESTRE
IPC: G01M11/00 , H04B10/071
Abstract: A first optical path and a second optical path have a common path branching point. An OTDR sampling optical signal is emitted into the first optical path and into the second optical path through the common path branching point. At least one predefined optical property of the OTDR sampling optical signal emitted into the second optical path is altered and/or of a reflection of the OTDR sampling optical signal received from the second optical path is altered. An OTDR reflected optical signal resulting from a reflection of the OTDR sampling optical signal on the first optical path and/or from a reflection on the second optical path is detected. The OTDR reflected optical signal is analyzed to determine, based on the at least one predefined optical property, whether the OTDR reflected optical signal resulted from a reflection on the first optical path and/or on the second optical path.
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公开(公告)号：US10263708B2
公开(公告)日：2019-04-16
申请号：US15119072
申请日：2015-03-12
Applicant: Xieon Networks S.à.r.l.
Inventor： Alessandro Bianciotto , Stefano Calabro , Maxim Kuschnerov , Mahdi Mezghanni , Antonio Napoli , Bernhard Spinnler
IPC: H04B10/588 , G02F1/225 , H04B10/61 , H04B10/079 , H04B10/50 , G02F1/21
Abstract: Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other. The first inner MZM generates an in-phase component EI of an optical signal in response to a first driving voltage VI, and the second inner MZM generates a quadrature component EQ of said optical signal in response to a second driving voltage VQ. Further disclosed is a calculation unit 52 configured for receiving an in-phase component yI and a quadrature component yQ_ of a desired base-band signal, and for calculating pre-distorted first and second driving voltages VI, VQ. The calculation of the pre-distorted first and second driving voltages VI, VQ is based on a model of said DPMZM 10 accounting for I-Q cross-talk, and using an algorithm that determines said first and second driving voltages VI, VQ each as a function of both of said in-phase and quadrature components yI, yQ of said base-band signal.
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14.发明申请公开(公告)号：US20190081726A1
公开(公告)日：2019-03-14
申请号：US16084461
申请日：2017-03-14
Applicant: Xieon Networks S.à.r.l.
Inventor： Danish RAFIQUE , Bernhard SPINNLER
Abstract: Disclosed is a receiver for receiving an optical signal comprising a plurality of carriers within a predetermined frequency band. The receiver comprises means for sampling and converting each of the carriers into a set of corresponding digital signals, and a digital processing unit for processing said digital signals of said set of digital signals such as to mitigate transmission impairments of the corresponding optical carriers based on corresponding processing parameters. The digital processing unit is configured for determining such processing parameters by carrying out a corresponding parameter derivation procedure based on one of the digital signals of said set of digital signals. The processing unit is configured for sharing thus determined processing parameters for processing of other digital signals among said set of digital signals based on said shared determined processing parameters, or processing parameters derived from said shared determined processing parameters.
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公开(公告)号：US10142026B2
公开(公告)日：2018-11-27
申请号：US15661756
申请日：2017-07-27
Applicant: Xieon Networks S.à.r.l.
Inventor： Lutz Rapp
IPC: H04B10/00 , H04B10/291 , H04B10/077 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/30
Abstract: A Raman pumping arrangement for amplifying a data optical signal (40) has a Raman pump (12) for generating a Raman pump signal (44;45), an optical supervisory channel receiver (14) for receiving an optical supervisory channel signal (42) an amplification fiber (15) arranged such that the data optical signal (40), the optical supervisory channel signal (42), and the Raman pump signal (44;45) are transmitted therethrough; and a control unit (13) configured for controlling the operation of the Raman pump (12); wherein the control unit (13) is configured for setting the Raman pump (12) in an operation mode or a start-up mode; wherein in the operation mode, the Raman pump (12) provides an operation pumping power (120), and wherein in the start-up mode, the Raman pump (12) provides a start-up pumping power (122).
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Patent Agency Ranking
公开(公告)号：US10103816B2
公开(公告)日：2018-10-16
申请号：US15507928
申请日：2015-08-12
Applicant: Xieon Networks S.à.r.l.
Inventor： Harald Rohde
Abstract: In a method and system for decoding a differential M-ary phase or quadrature amplitude modulated signal, the incoming signal is decoded according to a plurality of different decoding rules, wherein said plurality of decoding rules correspond to different values of a resulting frequency difference or mismatch between a signal frequency and a local oscillator reference frequency. The invention allows to increase a tolerance window for the maximal allowable frequency offset, and thus helps to speed up an initial locking process or to allow for equipment which has a lower tuning granularity.
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公开(公告)号：US20170279555A1
公开(公告)日：2017-09-28
申请号：US15504203
申请日：2015-08-18
Applicant: Xieon Networks S.à.r.l.
Inventor： Robert SCHIMPE
IPC: H04J14/02
CPC classification number: H04J14/021 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0217 , H04J14/0294
Abstract: The present invention relates to adding and dropping signals in a node of an optical network, wherein the node includes a reconfigurable optical add/drop multiplexer (ROADM). The reconfigurable optical add/drop multiplexer (ROADM) comprises output ports and at least one add port connectable to at least one line interface of the network and adapted to receive a modulated optical signal from the line interface. Selection units are connected to one of said add ports and adapted to forward the respective signals to a selected output terminal. A plurality of broadcast units is adapted to broadcast signals forwarded by the selection. Then a multiplexing and selecting device or apparatus selects and multiplexes the optical signals broadcast via broadcast unit output terminals into a plurality of wavelength-division multiplexing (WDM) optical signals and forwards the same to output ports of the reconfigurable optical add-drop multiplexer (ROADM).
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公开(公告)号：US20150377737A1
公开(公告)日：2015-12-31
申请号：US14769711
申请日：2013-02-26
Applicant: XIEON NETWORKS S.À.R.L.
Inventor： Lutz RAPP
CPC classification number: G01M11/30 , G02B6/2558 , G02B6/4446 , G02B6/4454 , H04B10/0791
Abstract: It is provided an apparatus, comprising a box configured to conduct an optical fiber from an exterior to an interior of the box; at least one of a mounting means adapted to mount a connecting means to which the optical fiber may be connected and a guiding means adapted to guide the optical fiber, wherein the at least one of the mounting means and the guiding means is arranged in the interior of the box; a detecting means arranged in the interior of the box adapted to detect a first signal from the interior of the box, wherein the first signal is at least one of a light and a smoke; wherein the interior of the box is substantially shielded from a second signal from an exterior of the box, and the detecting means is suitable to detect the second signal in a same manner as the first signal.
Abstract translation: 提供了一种装置，包括：盒，其被配置为将光纤从外部传导到盒的内部; 适于安装可连接光纤的连接装置的安装装置和适于引导光纤的引导装置中的至少一个，其中安装装置和引导装置中的至少一个布置在内部 的盒子 布置在盒子内部的检测装置，适于检测来自盒子内部的第一信号，其中第一信号是光和烟中的至少一个; 其中盒子的内部基本上与来自盒的外部的第二信号屏蔽，并且检测装置适合于以与第一信号相同的方式检测第二信号。
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19.发明授权公开(公告)号：US11303381B2
公开(公告)日：2022-04-12
申请号：US16084461
申请日：2017-03-14
Applicant: Xieon Networks S.à.r.l.
Inventor： Danish Rafique , Bernhard Spinnler
Abstract: Disclosed is a receiver for receiving an optical signal comprising a plurality of carriers within a predetermined frequency band. The receiver comprises means for sampling and converting each of the carriers into a set of corresponding digital signals, and a digital processing unit for processing said digital signals of said set of digital signals such as to mitigate transmission impairments of the corresponding optical carriers based on corresponding processing parameters. The digital processing unit is configured for determining such processing parameters by carrying out a corresponding parameter derivation procedure based on one of the digital signals of said set of digital signals. The processing unit is configured for sharing thus determined processing parameters for processing of other digital signals among said set of digital signals based on said shared determined processing parameters, or processing parameters derived from said shared determined processing parameters.
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公开(公告)号：US11088775B2
公开(公告)日：2021-08-10
申请号：US16462845
申请日：2017-11-21
Applicant: Xieon Networks S.à.r.l.
Inventor： Danish Rafique , Lutz Rapp
IPC: H04J14/02
Abstract: Disclosed herein is a method of transmitting a data stream from a first location to a second location through an optical network, as well as a corresponding performance monitoring unit, a transmitting arrangement and a receiving arrangement. The method comprises the steps of transmitting said data stream from said first location to said second location along a working path, wherein said data stream is transmitted in the form of a super channel comprising a number of n wavelengths within a predefined reserved wavelength range, monitoring the performance of the transmission based on the super channel signal received at said second location, and in case the performance is observed to drop below a predetermined performance threshold, unburdening the super channel from a part of said data stream while maintaining the reserved wavelength range for said super channel, by redirecting said part of the data stream for transmittal along at least one restoration path connecting said first and second locations, and transmitting the remainder of said data stream within the super channel on a number of wavelengths that is less than n, and/or with a reduced transmission rate for at least some of the wavelengths in said super channel.
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