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公开(公告)号：US12107666B2
公开(公告)日：2024-10-01
申请号：US17727492
申请日：2022-04-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Enyu Zhou , Lei Jing , Xiaofei Zeng , Huafeng Lin
CPC classification number: H04J14/0204 , H04J14/0245 , H04J14/0258 , H04J14/0267
Abstract: This application provides a port detection method, an optical network device, and a passive optical network system, to quickly and accurately detect a port connected to an ONU, and improve efficiency of determining the port connected to the ONU. The method includes: an optical line terminal sends optical signals corresponding to all of N wavelengths to at least one optical network unit, where the N wavelengths are different from each other, and N is a positive integer; the OLT receives optical power values that are of the optical signals corresponding to all of the N wavelengths and that are sent by a first ONU, where the first ONU is any one of the at least one ONU; and the OLT determines, bases on the optical power values of the optical signals corresponding to all of the N wavelengths, information about an optical splitter port corresponding to the first ONU.
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公开(公告)号：US11881893B2
公开(公告)日：2024-01-23
申请号：US17798295
申请日：2020-02-12
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kazutaka Hara , Yasutaka Kimura , Atsuko Kawakita
IPC: H04J14/00 , H04B10/2507 , H04B10/25 , H04J14/02
CPC classification number: H04B10/25073 , H04B10/25891 , H04J14/0204 , H04J14/0252
Abstract: An optical communication system according to the present invention cancels waveform distortion due to wavelength dispersion by extracting the spectrum of a transmitted optical signal and passing the optical signal to a fiber having a dispersion value opposite to a dispersion amount corresponding to a transmission distance received by the spectrum component and compensates for a transmission path loss due to the fiber having the opposite dispersion value using optical splitters having different split ratios. With this configuration, the present invention can compensate for waveform distortion due to wavelength dispersion by a simple method in an access network and achieve an increase in the reachable transmission distance of the farthest user or an increase in the number of connectable users.
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公开(公告)号：US11799555B2
公开(公告)日：2023-10-24
申请号：US17725631
申请日：2022-04-21
Applicant: Global Technology Inc.
Inventor： Jian-Hong Luo , Dong-Biao Jiang , Juan Zhang , Jiahang Shao
IPC: H04B10/50 , H04B10/572 , H04B10/25 , G02F1/25 , H04J14/02
CPC classification number: H04B10/506 , G02F1/25 , H04B10/2589 , H04B10/572 , H04J14/0204 , G02F2202/20 , G02F2203/58
Abstract: A multi-channel light emitting module includes a base, at least one light emitting unit provided on the base, an optical modulation chip provided on the base, and an optical transmission component. The optical modulation chip includes an encapsulation structure and a thin film lithium niobate (LiNbOx) modulator provided in the encapsulation structure. The thin film LiNbOx modulator is optically coupled with the at least one light emitting unit, and the light emitting unit is provided outside the encapsulation structure. The optical transmission component is optically coupled with the thin film LiNbOx modulator.
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公开(公告)号：US11650389B2
公开(公告)日：2023-05-16
申请号：US17194868
申请日：2021-03-08
Applicant: CommScope Technologies LLC
Inventor： Erik J. Gronvall , Olivier Hubert Daniel Yves Rousseaux , Trevor D. Smith , James J. Solheid , Matthew J. Holmberg
CPC classification number: G02B6/4452 , G02B6/3874 , G02B6/3897 , G02B6/4455 , G02B6/4471 , G02B6/4475 , H04B10/808 , H04J14/0204 , H04J14/0297
Abstract: The present disclosure relates to systems and method for deploying a fiber optic network. Distribution devices are used to index fibers within the system to ensure that live fibers are provided at output locations throughout the system. In an example, fibers can be indexed in multiple directions within the system. In an example, spare ports can be providing in a forward direction and reverse direction ports can also be provided.
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公开(公告)号：US20190140765A1
公开(公告)日：2019-05-09
申请号：US16234432
申请日：2018-12-27
Applicant: COX COMMUNICATIONS, INC.
Inventor： Harjinder S. Ghuman
IPC: H04J14/02 , H04Q11/00 , H04B10/294
CPC classification number: H04J14/0286 , H04B10/294 , H04J14/0204 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04J14/0282 , H04J14/0283 , H04J14/0291 , H04J14/0293 , H04Q11/0005
Abstract: This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.
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公开(公告)号：US10009135B2
公开(公告)日：2018-06-26
申请号：US15017142
申请日：2016-02-05
Applicant: Alexander N. Tait , Mitchell A. Nahmias , Bhavin J. Shastri , Paul R. Prucnal
Inventor： Alexander N. Tait , Mitchell A. Nahmias , Bhavin J. Shastri , Paul R. Prucnal
IPC: H04J14/00 , H04B10/20 , H04J14/02 , H04B10/275 , H04B10/80
CPC classification number: H04J14/0204 , H04B10/275 , H04B10/80
Abstract: According to some embodiments, a network architecture is disclosed. The network architecture includes a plurality of processing network nodes. The network architecture further includes at least one broadcasting medium to interconnect the plurality of processing network nodes where the broadcasting medium includes an integrated waveguide. The network architecture also includes a broadcast and weight protocol configured to perform wavelength division multiplexing such that multiple wavelengths coexist in the integrated waveguide available to all nodes of the plurality of processing network nodes.
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公开(公告)号：US09958612B2
公开(公告)日：2018-05-01
申请号：US15516204
申请日：2015-09-29
Applicant: NEC Corporation
Inventor： Satoshi Mikami
CPC classification number: G02B6/2932 , G02B6/29322 , G02B6/29383 , H04B10/85 , H04J14/00 , H04J14/02 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/021 , H04J14/0213
Abstract: In order to prevent a signal which a terminal station does not require from being intercepted by the terminal station without greatly changing the power of optical signals to be transmitted from a node to the terminal station, a node device is provided with: a first optical unit which outputs a first optical signal received from a first terminal station and addressed to a second terminal station, and a second optical signal received from the first terminal station, addressed to a third terminal station, and having a different wavelength band from the first optical signal; and a second optical unit to which the first and second optical signals outputted from the first optical unit are inputted, and which shifts the frequency of the first optical signal by a predetermined amount to create a fourth optical signal, passes the second optical signal without any change, couples the second and fourth optical signals, and transmits a resultant signal to the third terminal station.
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公开(公告)号：US09900671B2
公开(公告)日：2018-02-20
申请号：US15363241
申请日：2016-11-29
Applicant: Mark E. Boduch , Kimon Papakos
Inventor： Mark E. Boduch , Kimon Papakos
IPC: H04J14/02 , H04B10/294 , H04Q11/00
CPC classification number: H04Q11/0005 , H04B10/2941 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0221 , H04Q2011/0013 , H04Q2011/0016 , H04Q2011/0035 , H04Q2011/0052
Abstract: Example embodiments of the present invention relate to an optical signal processor comprising of at least one wavelength processing device, a plurality of optical amplifying devices, and a least one field programmable photonic device.
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公开(公告)号：US20180006733A1
公开(公告)日：2018-01-04
申请号：US15168914
申请日：2016-05-31
Applicant: David Ross Group
Inventor： Gerald Tourgee , John J. Mariano , Gerald S. Soloway
CPC classification number: H04B10/801 , G01S1/72 , G01V1/18 , G01V1/22 , H04B10/278 , H04B10/40 , H04J14/0201 , H04J14/0204 , H04J14/0205 , H04J14/028 , H04J14/04
Abstract: A subsea optical communication network includes branch systems whereby transponders may be connected to trunk fibers carrying data to and from the transponders, e.g., to and from shore. Trunk nodes split transponder receive signals off the trunk and couple transponder transmit signals onto the trunk. Each trunk node also removes a wavelength/channel from the trunk signal to compensate for the wavelength being added with transponder data. Removed wavelengths may be selected from idler wavelengths, e.g., empty channels or noise, or previously dropped transponder wavelengths. Branch signals may be single wavelength in either direction, allowing the use of low-bandwidth repeaters, and the same wavelength may be used in both directions. Branch signals may alternatively contain plural wavelengths that load a standard wide-bandwidth commercial repeater, where an optical add drop multiplexer is used to select the wavelength of interest to the transponder after the repeater.
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10.发明申请
公开(公告)号：US20170366291A1
公开(公告)日：2017-12-21
申请号：US15694946
申请日：2017-09-04
Applicant: Mark E. Boduch , Kimon Papakos
Inventor： Mark E. Boduch , Kimon Papakos
CPC classification number: H04Q11/0005 , H04B10/2941 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0212 , H04J14/0217 , H04Q2011/0009 , H04Q2011/0015 , H04Q2011/0016
Abstract: Example embodiments of the present invention relate to a software programmable reconfigurable optical add drop multiplexer (ROADM) comprising of a plurality of wavelength switches and a plurality of waveguide switches, wherein when the plurality of waveguide switches are set to a first switch configuration, the software programmable ROADM provides n degrees of an n-degree optical node, and wherein when the waveguide switches are set to a second switch configuration, the software programmable ROADM provides k degrees of an m-degree optical node.
