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公开(公告)号：US20240339807A1
公开(公告)日：2024-10-10
申请号：US18748195
申请日：2024-06-20
申请人： II-VI Delaware, Inc.
IPC分类号： H01S3/13 , H01S3/094 , H01S3/10 , H04B10/077
CPC分类号： H01S3/13013 , H01S3/094003 , H01S3/10015 , H04B10/0777 , H01S2301/04
摘要： A system for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on data signals (typically customer data signals) propagating between the amplifier nodes transmitted customer signals. The modulated pump appears as a modulated envelope on the amplified data signal exiting the amplifier node, and may be recovered by suitable demodulation components located at the second node (i.e., the destined receiver of the supervisory information). The supervisory information may include monitoring messages, provisioning data, protocol updates, etc., and is utilized as an input to an included modulator, which then forms a drive signal for the pump controller.
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公开(公告)号：US20240079839A1
公开(公告)日：2024-03-07
申请号：US17901749
申请日：2022-09-01
申请人： II-VI Delaware, Inc.
CPC分类号： H01S3/0405 , H01S3/025 , H01S3/0407 , H01S3/06758 , H01S3/0064
摘要： A temperature controller is used for a gain fiber of a fiber amplifier. The controller includes a heat transfer structure and one or more temperature sinks, such as cooling plates. The heat transfer structure supports the gain fiber and is disposed in thermal contact with it. Portions of the temperature sink(s) are disposed in different thermal conductivity with sections of the heat transfer structure. For example, the sinks may have different material properties and/or material thicknesses. Also, portions of the temperature sink(s) can have different cooling rates. The different thermal conductivities conduct the heat from parts of the gain fiber differently from one another. In the end, an onset of Stimulated Brillouin Scattering (SBS) on the laser light path can be mitigated by conducting heat from the gain fiber with the different thermal conductivities.
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公开(公告)号：US11747579B2
公开(公告)日：2023-09-05
申请号：US16909739
申请日：2020-06-23
申请人： II-VI DELAWARE, INC.
发明人： Eric T. Green , Bradley Dailey , Aravanan Gurusami
IPC分类号： G02B6/42
CPC分类号： G02B6/423 , G02B6/426 , G02B6/4212 , G02B6/4236 , G02B6/4249
摘要： The present disclosure generally relates to devices, which may be used in communication or optoelectronic modules for example, suitable for arrayed positioning of a plurality of fiber optical components. In one form, an optoelectronic module includes a printed circuit board (PCB) and at least one optical component array device including an array of laterally or radially spaced receptacles configured to receive an optical component. One or more of the receptacles includes a fused fiber optical component positioned therein. A recursive fiber may extend between an output of a first fused fiber optical component and an input of a second fused fiber optical component, and an optical fiber routing member may be coupled to the PCB and include a plurality of guides extending away from the PCB and defining a pathway for routing optical fibers relative to the PCB.
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公开(公告)号：US11843219B2
公开(公告)日：2023-12-12
申请号：US16936587
申请日：2020-07-23
申请人： II-VI Delaware, Inc.
发明人： Martin R. Williams , Timothy K. Zahnley , Thomas W. McNamara , Aravanan Gurusami , Scott Dahl , Siegfried Fleischer
CPC分类号： H01S3/2308 , G01S17/02 , H01S3/06754 , H03K7/08
摘要： A fiber-based master optical power amplifier (MOPA) is configured to utilize a pump source that operates in pulse mode with the arrival time of the pump pulses coordinated with the arrival time of the input pulses. The width of the pump pulses is also controlled, thus providing a mechanism for controlling both the amount of pump energy injected into the fiber amplifier, as well as the overlap in time between the pump pulse and the seed pulse. As the pulse repetition interval (PRI) of the input seed pulse changes, the timing of the pump pulses and their width are also changed so that a “constant gain” environment is created within the amplifying medium, providing an essentially constant energy output pulse, regardless of differences in ASE generated during different PRIs.
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公开(公告)号：US20230187895A1
公开(公告)日：2023-06-15
申请号：US18104995
申请日：2023-02-02
申请人： II-VI Delaware, Inc.
IPC分类号： H01S3/13 , H01S3/094 , H01S3/10 , H04B10/077
CPC分类号： H01S3/13013 , H01S3/094003 , H01S3/10015 , H04B10/0777 , H01S2301/04
摘要： A system for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on data signals (typically customer data signals) propagating between the amplifier nodes transmitted customer signals. The modulated pump appears as a modulated envelope on the amplified data signal exiting the amplifier node, and may be recovered by suitable demodulation components located at the second node (i.e., the destined receiver of the supervisory information). The supervisory information may include monitoring messages, provisioning data, protocol updates, etc., and is utilized as an input to an included modulator, which then forms a drive signal for the pump controller.
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公开(公告)号：US11588295B2
公开(公告)日：2023-02-21
申请号：US16672316
申请日：2019-11-01
申请人： II-VI Delaware, Inc.
IPC分类号： H01S3/13 , H01S3/10 , H04B10/077 , H01S3/094
摘要： A system and method for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on through-transmitted customer signals (or ASE associated with the amplifier if no customer traffic is present). The supervisory information (which may include monitoring messages, provisioning data, protocol updates, and the like) is utilized as an input to an included modulator, which then forms a drive signal for the pump controller. In a preferred embodiment, binary FSK modulation is used.
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公开(公告)号：US12113574B2
公开(公告)日：2024-10-08
申请号：US17448644
申请日：2021-09-23
申请人： II-VI Delaware, Inc
发明人： Martin R. Williams , Yajun Wang , Eric Timothy Green , Aravanan Gurusami , Deepak Devicharan , Timothy Kent Zahnley , Mike Burgess
IPC分类号： H04B10/297 , H01S3/067
CPC分类号： H04B10/2972 , H01S3/06787 , H04B10/2971
摘要： A colorless mux/demux cable assembly, including a first fiber optic cable, a second fiber optic cable, and a main body that includes an N:1 optical combiner and a 1:N optical splitter. The N:1 optical combiner is configured to combine individual optical signals received by each of N input fibers of the second fiber optic cable and provide a combined output signal to an output fiber of the first fiber optic cable. The 1:N optical splitter is configured to split a combined input optical signal (having N wavelength channels) received via an input fiber of the first fiber optic cable and provide a split output signal comprising each of the N wavelength channels to each of N output fibers of the second fiber optic cable.
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公开(公告)号：US12062882B2
公开(公告)日：2024-08-13
申请号：US18104995
申请日：2023-02-02
申请人： II-VI Delaware, Inc.
IPC分类号： H01S3/13 , H01S3/094 , H01S3/10 , H04B10/077
CPC分类号： H01S3/13013 , H01S3/094003 , H01S3/10015 , H04B10/0777 , H01S2301/04
摘要： A system for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on data signals (typically customer data signals) propagating between the amplifier nodes transmitted customer signals. The modulated pump appears as a modulated envelope on the amplified data signal exiting the amplifier node, and may be recovered by suitable demodulation components located at the second node (i.e., the destined receiver of the supervisory information). The supervisory information may include monitoring messages, provisioning data, protocol updates, etc., and is utilized as an input to an included modulator, which then forms a drive signal for the pump controller.
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公开(公告)号：US11777597B2
公开(公告)日：2023-10-03
申请号：US17806892
申请日：2022-06-14
申请人： II-VI Delaware, Inc.
IPC分类号： H04B10/071 , H04B10/25
CPC分类号： H04B10/071 , H04B10/25
摘要： Modules for optical time-domain reflectometry (OTDR) are connected via at least one fiber link of a fiber optic communication network. The modules can perform OTDR operations on the at least one fiber link. In addition, the modules can establish an inter-node communication channel between each other on the at least one fiber link. The channel allows the OTDR modules to synchronize their OTDR operations and to exchange information, such as OTDR traces, between each other.
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公开(公告)号：US20220321212A1
公开(公告)日：2022-10-06
申请号：US17806892
申请日：2022-06-14
申请人： II-VI Delaware, Inc.
IPC分类号： H04B10/071 , H04B10/25
摘要： Modules for optical time-domain reflectometry (OTDR) are connected via at least one fiber link of a fiber optic communication network. The modules can perform OTDR operations on the at least one fiber link. In addition, the modules can establish an inter-node communication channel between each other on the at least one fiber link. The channel allows the OTDR modules to synchronize their OTDR operations and to exchange information, such as OTDR traces, between each other.
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