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WO2016044568A1 - Ensemble de branchement de fibres optiques hybrides présentant une connectivité optique multimode et monomode, et composants, systèmes et procédés connexes - Google Patents

Ensemble de branchement de fibres optiques hybrides présentant une connectivité optique multimode et monomode, et composants, systèmes et procédés connexes Download PDF

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Publication number
WO2016044568A1
WO2016044568A1 PCT/US2015/050646 US2015050646W WO2016044568A1 WO 2016044568 A1 WO2016044568 A1 WO 2016044568A1 US 2015050646 W US2015050646 W US 2015050646W WO 2016044568 A1 WO2016044568 A1 WO 2016044568A1
Authority
WO
WIPO (PCT)
Prior art keywords
mode
connector
optical fibers
fiber
fiber optic
Prior art date
Application number
PCT/US2015/050646
Other languages
English (en)
Inventor
Mustafa Keskin
Original Assignee
Ccs Technology, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ccs Technology, Inc. filed Critical Ccs Technology, Inc.
Publication of WO2016044568A1 publication Critical patent/WO2016044568A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • G02B6/44715—Fan-out devices

Definitions

  • the present disclosure relates to optical fiber connection assemblies, and more particularly, to optical fiber connection assembly cable, hardware, and/or modules that support both single-mode and multi-mode optical connectivity.
  • the disclosure relates generally to fiber optic breakout assemblies and more particularly to hybrid fiber optic breakout assemblies having multi-mode and single-mode optical connectivity, which may be used for simultaneous connectivity of both types of connectivity at a common connection point.
  • Related components, systems, and methods are also disclosed.
  • optical fiber is increasingly being used for a variety of applications, including but not limited to broadband voice, video, and data
  • Fiber optic networks employing optical fiber are being developed for use in delivering voice, video, and data transmissions to subscribers over both private and public networks. These fiber optic networks often include separated connection points linking optical fibers to provide "live fiber" from one connection point to another.
  • fiber optic equipment is located in data distribution centers or central offices to support live fiber interconnections.
  • the fiber optic equipment can support interconnections between servers, storage area networks (SANs), and/or other equipment at data
  • Interconnections may be further supported by fiber optic patch panels or modules.
  • Multi-mode fiber refers to optical fiber that supports multiple "modes" or cross-sectional areas for a laser light source.
  • Multi-mode fiber has the advantage of being able to use larger, relatively inexpensive laser light sources because of its relatively large cross-sectional area.
  • Single -mode fiber refers to optical fiber that supports a single "mode” or cross-sectional area for a laser light source, and has a significantly smaller cross sectional area.
  • Single-mode fiber has the advantage of being able to transmit data over relatively long distances, but requires more expensive light sources because of its relatively small cross sectional area. Thus, most applications favor less expensive multi-mode fiber solutions for spanning shorter distances, and favor single-mode fiber only when necessary for spanning longer distances.
  • Embodiments of the disclosure include a breakout assembly for a hybrid fiber optic cable.
  • the breakout assembly comprises a first multi-fiber connector, at least one multi-mode connector, and at least one single -mode connector.
  • a plurality of multi-mode optical fibers is connected between the first multi-fiber connector and the at least one multi- mode connector, and a plurality of single-mode optical fibers is connected between the first multi-fiber connector and the at least one single-mode connector.
  • multi-mode fibers are included, corresponding to port positions 1-4 and 9-12 of a conventional BASE-8 parallel optical connection scheme.
  • four (4) single-mode optical fibers may be disposed in the otherwise unused port positions 5-8, thereby enabling simultaneous connectivity with a pair of single- mode duplex connections, or other single-mode connectivity.
  • a single multi- fiber connection can support both parallel optical multi-mode connectivity and serial single- mode connectivity simultaneously, thereby allowing easy transition between the two connectivity solutions as requirements change over time.
  • One embodiment of the disclosure relates to a breakout assembly for a hybrid fiber optic cable.
  • the breakout assembly comprises a first multi- fiber connector.
  • the breakout assembly further comprises at least one multi-mode connector, and a plurality of multi-mode optical fibers connected between the first multi-fiber connector and the at least one multi-mode connector.
  • the breakout assembly further comprises at least one single- mode connector, and a plurality of single-mode optical fibers connected between the first multi-fiber connector and the at least one single-mode connector.
  • An additional embodiment of the disclosure relates to a method of providing connectivity to a plurality of multi-mode optical fibers and a plurality of single-mode fibers.
  • the method comprises connecting a hybrid fiber optic cable having a plurality of multi-mode optical fibers and a plurality of single -mode optical fibers terminated at a first multi-fiber connector to a breakout assembly.
  • the method further comprises connecting at least one multi-mode fiber optic cable to at least one multi-mode connector of the breakout assembly optically connected to the plurality of multi-mode optical fibers via the first multi-fiber connector.
  • FIG. 1 illustrates a cross-sectional view of exemplary multi-mode and single- mode fibers
  • FIG. 2 illustrates a multi-fiber connector having a multi-fiber ferrule that has a horizontal linear array of fiber positions for receiving a plurality of multi-mode and single- mode optical fibers
  • FIGS. 3A-3C illustrate a plurality of fiber optic cables each having a plurality of single-mode and multi-mode optical fibers
  • FIG. 4 illustrates a breakout module configured to convert between a hybrid multi-mode/single-mode configurations and separated multi-mode configurations and single- mode configurations;
  • FIG. 5 illustrates an alternative breakout module having a pair of single-mode LC duplex connectors and four (4) multi-mode LC duplex connectors
  • FIG. 6 illustrates a portion of a fiber optic network including a hybrid multi- mode/single-mode fiber optic cable connected between a pair of fiber optic breakout modules;
  • FIG. 7 illustrates a portion of an alternative fiber optic network including a hybrid multi-mode/single-mode fiber optic cable connected between a different pair of fiber optic breakout modules;
  • FIG. 8 illustrates an alternative fiber optic network including a hybrid fiber optic cable connected between a pair of multi-fiber jumper cables each connected to a Quad Small Form-factor Pluggable (QSFP) transceiver; and
  • QSFP Quad Small Form-factor Pluggable
  • FIG. 9 illustrates an alternative fiber optic network including a fiber optic cable connected between a pair of multi-fiber to multi-fiber jumper cables, each connected to a BASE-8 multi-fiber to LC duplex breakout module.
  • Embodiments of the disclosure include a breakout assembly for a hybrid fiber optic cable.
  • the breakout assembly comprises a first multi-fiber connector, at least one multi-mode connector, and at least one single -mode connector.
  • a plurality of multi-mode optical fibers is connected between the first multi-fiber connector and the at least one multi- mode connector, and a plurality of single-mode optical fibers is connected between the first multi-fiber connector and the at least one single-mode connector.
  • FIG. 1 illustrates cross-sectional views of exemplary multi-mode and single -mode fibers.
  • Multi-mode fiber 10 includes a multi-mode core 14 surrounded by protective cladding 16.
  • the multi-mode core 14 has a diameter DM of 50 ⁇
  • the entire optical fiber has a diameter DF of 125 ⁇ .
  • Single -mode fiber 12 includes a core 18 having a diameter DS of 9 ⁇ surrounded by a substantially thicker cladding 20 to achieve the same 125 ⁇ diameter DF.
  • the cores 14, 18 of the optical fibers 10, 12 have substantially different diameters, the overall diameter DF of both optical fibers 10, 12 are 125 ⁇ , to ensure compatibility with standardized ferrule sizes. Both optical fibers 10, 12 are also typically enclosed within a protective coating to increase the diameter of the optical fiber 10, 12 to 250 ⁇
  • the connector 22 includes a multi-fiber ferrule 24 that has a horizontal linear array of fiber positions 26 for receiving a plurality of optical fibers 10, 12.
  • the multi-fiber ferrule 24 may also include one or more alignment features, such as alignment bores 28.
  • the linear array 26 of fiber positions includes 8 multi-mode optical fibers 10 at positions 1 through 4 and 9 through 12, and four single-mode optical fibers 12 at positions 5 through 8.
  • FIGS. 3 A through 3C a plurality of fiber optic cables are illustrated.
  • a fiber optic cable subunit 30 is illustrated having a bundle of 8 multi-mode optical fibers 10(1) through 10(4) and 10(9) through 10(12), and 4 single-mode optical fibers 12(5) through 12(8).
  • fiber positions 1 through 12 correspond to the standard fiber positions 1 through 12 of a multi-fiber adapter array, with each corresponding single -mode or multi-mode optical fiber 10, 12 having a corresponding color.
  • the bundle of optical fibers 10, 12 is surrounded by cable subunit covering 32.
  • the cable subunit 30 may also include strength members 34 such as aramid yarn within the cable subunit covering 32.
  • each of the optical fibers 10, 12 may include one or more indicia, such as color coding, to indicate to which fiber position the optical fiber 10, 12 corresponds.
  • the optical fibers 10, 12 may be color coded according to a standard 12-fiber multi- fiber array, according to the fiber positions of the optical fibers 10, 12 discussed above.
  • multi-mode optical fiber 10(1 ) may be blue
  • multi-mode optical fiber 10(2) maybe orange
  • multi-mode optical fiber 10(3) may be green
  • multi-mode optical fiber 10(4) may be brown.
  • single-mode optical fiber 12(5) may be slate
  • single-mode optical fiber 12(6) may be white
  • single-mode optical fiber 12(7) maybe red
  • single-mode optical fiber 12(8) may be black.
  • multi- mode optical fiber 10(9) maybe yellow
  • multi-mode optical fiber 10(10) maybe violet
  • multi-mode optical fiber 10(11) may be rose
  • multi-mode optical fiber 10(12) may be aqua.
  • multi-mode optical fibers 10 are color coded such that they are assigned to the outside fiber positions 1-4 and 9-12 of a standard multi- fiber connector for a BASE-8 configuration, for example using a universal wiring polarity scheme.
  • the otherwise unused fiber positions 5-8 may be occupied by appropriately color coded single-mode optical fibers 12.
  • Either set of optical fibers 10, 12 may be kept “dark" when not in use, or both sets of optical fibers 10, 12 can be used simultaneously.
  • FIG. 3B illustrates a 24-fiber trunk cable 36 having a pair of 12-fiber cable subunits 30 surrounded by a cable jacket 38.
  • An additional layer of strength members 40 such as aramid yarn, may also be included.
  • FIG. 3C illustrates a 144-fiber trunk cable 42 having 12, 12-fiber cable subunits 30 disposed therein.
  • the cable subunits 30 are surrounded by a single cable jacket 44, and may include additional layers of strength members 46, such as aramid yarn.
  • the trunk cable may not have a jacket and the subunits may be bound together with a binder or other appropriate covering.
  • hybrid MTP cable 30, 36, 42 An advantage of this hybrid MTP cable 30, 36, 42 is that the complexity in planning and cabling migration is reduced. Rather than plan out separate single-mode and multi-mode connections at the design phase, the hybrid MTP cables 30, 36, 42 can be used throughout an installation, and their use within the installation can be determined at any time, and can also be changed over time. For example, a user could plan to use only multi-mode fiber for an installation. If transmission distance issues arise at any stage, however, the installation will already have pre-terminated single -mode fiber installed and ready to use, which can be activated without running any new cable. This will allow users to save time and money on planning, and save labor cost on future planning, implementation, and upgrades.
  • the breakout module 48 configured to convert between hybrid multi-mode/single-mode configurations and separated multi-mode configurations and single-mode configurations is illustrated.
  • the breakout module 48 includes a module housing 50.
  • a multi-fiber connector 52 is configured to optically connect to a hybrid multi-mode/single-mode multi-fiber configuration.
  • the other end of the breakout module 48 includes a pair of single-mode LC duplex connectors 54, for connecting to single-mode LC solutions, such as 40GB or 100GB connectivity, and also includes a BASE-8 multi-fiber connector 56, for connecting to conventional BASE-8 multi- mode solutions, such as 40GB or 100GB parallel optics solutions.
  • the single-mode LC duplex connectors 54 are optically connected to the single-mode fiber positions, i.e., fiber positions 5 through 8, of multi-fiber connector 52.
  • multi-mode multi-fiber connector 56 is optically connected to the multi-mode fiber positions, i.e., fiber positions 1 through 4 and 9 through 12, of multi-fiber connector 52.
  • a single connection to multi-fiber connector 52 can support a BASE-8 multi-mode multi-fiber connection, a pair of LC duplex single-mode connections, or both simultaneously.
  • the breakout module 48 is sized to be disposed in and backwards compatible with existing 4-slot Pretium EDGE Solutions, as provided by Corning Optical Communications LLC, and may also be sized to be larger or more compact to accommodate alternative solutions, such as 6-slot BASE-8 solutions, for example.
  • breakout module 58 includes a module housing 60.
  • Breakout module 58 includes a similar multi-fiber connector 52 at the rear of breakout module 58, for receiving a hybrid multi-mode/single-mode multi-fiber connection.
  • additional 4 multi-mode LC duplex connectors 62 are disposed on the front of the breakout module 58 as well. In this manner, each of the single -mode and multi-mode fibers connected to multi- fiber connector 52 may be broken out into respective multi-duplex pairs.
  • breakout module 58 is sized to be disposed in and backwards compatible with existing 4-slot EDGE -based solutions, and may also be resized as desired.
  • FIG. 6 illustrates a portion of a fiber optic network 64 including a hybrid multi-mode/single-mode fiber optic cable 66 connected between a pair of fiber optic breakout modules 48.
  • the respective ends of fiber optic cable 66 are connected to breakout modules 48 by a respective multi-fiber to multi-fiber jumper cable 68.
  • two- way communication is enabled for both a pair of single -mode LC duplex connectors as well as a multi-mode BASE-8 multi-fiber connector.
  • FIG. 7 an alternative fiber optic network 70 is illustrated, in which a pair of breakout modules 58 are connected via the hybrid fiber optic cable 66 and multi-fiber to multi-fiber jumper cable 68. In this manner, 2 single-mode LC duplex connection pairs are enabled, as well as 4 multi-mode LC duplex connections.
  • a fiber optic network 72 includes a hybrid fiber optic cable 66 terminated with multi-fiber MTP connector on each leg 74 containing one or more subunits 30 each MTP terminated leg 74 connected to an MTP adaptor panel 76.
  • a multi-fiber MTP jumper 78 is connected between each MTP panel 76 and a Quad Small Form-factor Pluggable (QSFP) transceiver 80.
  • QSFP Quad Small Form-factor Pluggable
  • an alternative fiber optic network 82 includes fiber optic cable 66 connected between a pair of multi-fiber to multi-fiber jumper cables 68, each connected to a BASE-8 multi-fiber to LC duplex breakout module 84.
  • LC duplex breakout module 84 includes four (4) multi-mode LC duplex connectors 62 only. This permits the LC duplex breakout module 84 to have a smaller form factor than other modules sized to accommodate six (6) LC duplex connections for example. Thus, in this embodiment, only the multimode connections are employed, with the single -mode connections remaining unused. In this manner, the hybrid fiber optic cable 66 is backward compatible with BASE-8 LC duplex solutions.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

L'invention se rapporte à des ensembles de branchement qui sont destinés à des câbles à fibres optiques hybrides. L'ensemble de branchement comprend un premier connecteur multifibre, au moins un connecteur multimode, ainsi qu'au minimum un connecteur monomode. Une pluralité de fibres optiques multimodes sont connectées entre le premier connecteur multifibre et ledit connecteur multimode, et une pluralité de fibres optiques monomodes sont connectées entre le premier connecteur multifibre et ledit connecteur monomode. Cet agencement présente l'avantage de permettre l'alternance entre une connectivité monomode et une connectivité multimode, ou l'utilisation simultanée des deux types de connectivité, grâce à l'installation d'un câble hybride unique comportant des fibres optiques multimodes et monomodes qui se terminent par un connecteur multifibre commun.
PCT/US2015/050646 2014-09-19 2015-09-17 Ensemble de branchement de fibres optiques hybrides présentant une connectivité optique multimode et monomode, et composants, systèmes et procédés connexes WO2016044568A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462052759P 2014-09-19 2014-09-19
US62/052,759 2014-09-19

Publications (1)

Publication Number Publication Date
WO2016044568A1 true WO2016044568A1 (fr) 2016-03-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283237A1 (fr) * 2021-07-06 2023-01-12 Afl Ig Llc Appareil de connecteur multifibre

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076656A (en) * 1984-06-08 1991-12-31 Briggs Robert C High precision optical fiber connectors
US5659655A (en) * 1996-04-29 1997-08-19 Mcdonnell Douglas Corporation Optical ribbon cable fanout boxes
US20040029437A1 (en) * 2002-08-09 2004-02-12 Caveney Jack E. Multimedia outlet box
US20050084221A1 (en) * 2003-10-16 2005-04-21 3M Innovative Properties Company Apparatus and method for transitioning fiber optic cables
US20080175550A1 (en) * 2007-01-19 2008-07-24 Hutch Coburn Fiber optic adapter cassette and panel
US7756371B1 (en) * 2009-01-30 2010-07-13 Corning Cable Systems Llc Optical fiber interconnection devices and systems using same
US20100183276A1 (en) * 2009-01-20 2010-07-22 Smith Trevor D Splitter Module with Connectorized Pigtail Manager
WO2010099059A1 (fr) * 2009-02-27 2010-09-02 Corning Cable Systems Llc Boîtier de module à fibres optiques articulé et module
US20130308915A1 (en) * 2012-05-16 2013-11-21 Scott Eaker Buff Port tap fiber optic modules, and related systems and methods for monitoring optical networks

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076656A (en) * 1984-06-08 1991-12-31 Briggs Robert C High precision optical fiber connectors
US5659655A (en) * 1996-04-29 1997-08-19 Mcdonnell Douglas Corporation Optical ribbon cable fanout boxes
US20040029437A1 (en) * 2002-08-09 2004-02-12 Caveney Jack E. Multimedia outlet box
US20050084221A1 (en) * 2003-10-16 2005-04-21 3M Innovative Properties Company Apparatus and method for transitioning fiber optic cables
US20080175550A1 (en) * 2007-01-19 2008-07-24 Hutch Coburn Fiber optic adapter cassette and panel
US20100183276A1 (en) * 2009-01-20 2010-07-22 Smith Trevor D Splitter Module with Connectorized Pigtail Manager
US7756371B1 (en) * 2009-01-30 2010-07-13 Corning Cable Systems Llc Optical fiber interconnection devices and systems using same
WO2010099059A1 (fr) * 2009-02-27 2010-09-02 Corning Cable Systems Llc Boîtier de module à fibres optiques articulé et module
US20130308915A1 (en) * 2012-05-16 2013-11-21 Scott Eaker Buff Port tap fiber optic modules, and related systems and methods for monitoring optical networks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283237A1 (fr) * 2021-07-06 2023-01-12 Afl Ig Llc Appareil de connecteur multifibre

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