WO2009081964A1 - Dispositif et procédé de connexion de fibre optique - Google Patents

Dispositif et procédé de connexion de fibre optique Download PDF

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Publication number
WO2009081964A1
WO2009081964A1 PCT/JP2008/073529 JP2008073529W WO2009081964A1 WO 2009081964 A1 WO2009081964 A1 WO 2009081964A1 JP 2008073529 W JP2008073529 W JP 2008073529W WO 2009081964 A1 WO2009081964 A1 WO 2009081964A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
sleeve
optical
fiber
guide path
Prior art date
Application number
PCT/JP2008/073529
Other languages
English (en)
Japanese (ja)
Inventor
Yoshinari Maeda
Original Assignee
Nf Techno Summit Co. Ltd.
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 Nf Techno Summit Co. Ltd. filed Critical Nf Techno Summit Co. Ltd.
Publication of WO2009081964A1 publication Critical patent/WO2009081964A1/fr

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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
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • 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
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
    • G02B6/3803—Adjustment or alignment devices for alignment prior to splicing
    • G02B6/3805—Adjustment or alignment devices for alignment prior to splicing with a fibre-supporting member inclined to the bottom surface of the alignment means
    • 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
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3861—Adhesive bonding

Definitions

  • the present invention relates to an optical fiber connecting device for connecting optical fibers used for optical communication and an optical fiber connecting method using the connecting device.
  • a method of connecting optical fibers generally, a method of melting and welding the tip of an optical fiber, a method using a mechanical splice, and connector connection are used.
  • the method using a mechanical splice is a method in which the tip ends of two optical fibers are butted together with a dedicated device without using a connector.
  • connection of optical fibers when using mechanical splices it is necessary to prevent connection loss due to optical axis misalignment and gaps on the connection surface, and various devices are used to prevent these.
  • a dedicated tool is required to install this device. Therefore, it is difficult to work in a high place or a place where a work yard cannot be secured sufficiently, and the work efficiency is low.
  • an adapter is attached to the tip of two optical fibers, the optical axis is aligned by engaging the base and the adapter with a slide rail, and the optical fiber is connected.
  • an optical fiber can be connected by locking a base part and an adapter by a lever provided on the base part without using a dedicated tool.
  • Patent Document 2 discloses a technique for connecting the tips of optical fibers by attaching different connectors to the tips of two optical fibers and fitting them together. According to this technology, even if the other optical fiber is slightly moved back and forth due to the reaction of the pressure from one optical fiber, the connection in the sleeve is maintained by maintaining the bent state in the connector. Can do.
  • the optical fiber butted inside the sleeve installed in the center of the resin base is fixed at both ends of the resin base in a predetermined bending state by the press-extrusion fixing part, so that a dedicated tool is not required.
  • an optical fiber connection device that enables optical connection with one device (see, for example, Patent Document 3). By using such an optical fiber connection device, the optical fiber is fixed in a bent state. Therefore, the optical connection state can be continued without using glass-containing resin with little temperature change as the resin used for the base.
  • the matching oil sealed in the sleeve for optical connection may be used with a different viscosity depending on the usage environment. For this reason, there are problems such as making it difficult to insert the optical fiber, and, when a slit for matching oil relief is provided, careful work is required to bring the fiber butting position into the slit range.
  • the present invention can suppress an optical transmission loss such as a microbending loss, and can realize an optical connection with a low loss by a relatively simple operation and an optical fiber.
  • An object is to provide a connection method.
  • the optical fiber connection device of the present invention optically connects an optical fiber formed by covering a core material with a covering material by attaching the core materials exposed at the tip part thereof.
  • An optical fiber connecting device for forming a rectangular base part in which an optical fiber guide path is formed along a longitudinal direction, and an exposed core member provided in a part of the optical fiber guide path formed in the base part A pair of fibers that are connected to each other and optically connected to each other, and a pair of fibers that are arranged at both ends in the longitudinal direction of the base portion and hold the optical fiber guided by the optical fiber guide path toward the sleeve
  • a fixing knob, and the sleeve is disposed in the vicinity of one of the pair of fiber fixing knobs.
  • Write to the optical fiber guide path between said sleeve is characterized by guiding a state deflection optical fibers to be held.
  • the sleeve is disposed in the vicinity of one of the pair of fiber fixing knobs, and the optical fiber guide path between the other of the pair of fiber fixing knobs and the sleeve is Since the optical fiber to be held is guided in a bent state, the optical fiber fixed to one of the pair of fiber fixing knobs is fixed with almost no bending, but is fixed to the other of the pair of fiber fixing knobs. Since the distance between the fixing portion and the sleeve can be increased, the optical fiber can be fixed with a large deflection. Therefore, it is not necessary to hold the optical fiber in a shape with a small curvature, and optical transmission loss such as microbending loss can be suppressed.
  • the optical fiber guide path between the other of the pair of fiber fixing knobs and the sleeve is extended in a curved shape. Since the optical fiber is arranged with bending in the optical fiber guide path, providing an optical fiber guide path extending in a curved shape prevents stress on the optical fiber itself and realizes a low-loss connection.
  • a lid portion is attached to the base portion so as to cover the optical fiber guide path formed in the base portion, and the fiber fixing knob attaches an optical fiber to the lid portion. It can be set as the structure which has the clamping part fixed by pressing.
  • the sleeve is a member that is optically connected by bringing exposed core materials together, and can be inserted by pushing in an optical fiber with the core material exposed from both ends.
  • the inside of the introduction hole of the optical fiber can be filled with matching oil, and a slit may be formed in the optical fiber joint portion of the sleeve, and the slit is connected to the connection hole.
  • the adhesive can be filled during assembly of the device.
  • an optical fiber in which a core material is covered with a coating material is optically connected by attaching the core materials exposed at the tip part thereof.
  • An optical fiber connection method for filling a matching oil into an optical fiber introduction hole of a sleeve incorporated in a part of an optical fiber guide path formed in a base portion, and introducing an optical fiber filled with the matching oil A step of inserting one of a pair of optical fibers to be optically connected into the hole so as to penetrate with the end portion exposed, and a step of returning the inserted optical fiber so that the end portion is at the optical joining position And a process of abutting the other end of the pair of optical fibers to be optically connected to one end of the optical fiber at the optical joining position. Characterized in that it.
  • the optical fiber connection method of the present invention even if matching oil is present, the optical fiber is inserted into the insertion hole so as to penetrate once, so that a predetermined matching oil gap region is formed inside the insertion hole.
  • the other optical fiber can be surely pushed into the insertion hole. Therefore, for example, it is not necessary to insert the optical fiber from both sides so that the core members exposed at the tip end are attached to each other in accordance with the position of the slit.
  • the optical fiber fixed to the other of the pair of fiber fixing knobs can increase the distance between the fixing portion and the sleeve, it is fixed with a relatively large deflection. be able to. Therefore, it is not necessary to hold the optical fiber in a shape with a small curvature, and optical transmission loss such as microbending loss can be suppressed. Moreover, since it becomes unnecessary to hold
  • the other optical fiber can be reliably pushed into the insertion hole thereafter. Therefore, for example, it is not necessary to insert the optical fiber from the both ends so that the cores exposed at the tip end of the optical fiber are aligned with each other, and the operator can easily perform the optical connection work. .
  • connection method using the optical fiber connecting device of one Embodiment of this invention is a figure which shows the state which penetrated the optical fiber in the sleeve. It is process sectional drawing of the connection method using the optical fiber connecting device of one Embodiment of this invention, and is a figure which shows the state which returned the optical fiber to the predetermined position. It is process sectional drawing of the connection method using the optical fiber connecting device of one Embodiment of this invention, and is a figure which shows the state which inserted the other optical fiber. It is a sectional side view of the optical fiber connection device of other embodiments of the present invention.
  • FIG. 1 is a perspective view showing an optical fiber connection device of this embodiment.
  • the device 10 is formed on a rectangular base portion 11 in which an optical fiber guide path 12 is formed along the longitudinal direction, and the base portion 11.
  • an optical fiber guide path 12 is formed along the longitudinal direction, and the base portion 11.
  • a pair of fiber fixing knobs 14 and 15 for holding the optical fibers 16 and 17 guided by the optical fiber guide path 12 so as to be pushed in, and a rectangular formed on the base portion by covering the upper surface side of the base portion 11.
  • a lid 18 is provided so as to cover the shaped base 11.
  • the base portion 11 is made of synthetic resin such as polycarbonate or ABS having predetermined heat resistance and rigidity, and has a structure in which fiber fixing knobs 14 and 15 are disposed at both ends in the longitudinal direction of a substantially rectangular casing. have. Opening portions 19 and 20 for introducing optical fibers 16 and 17 are provided at both ends of the base portion 11 in a state where the lid portion 18 is overlapped, and a position sandwiched between the base portion 11 and the lid portion 18. The optical fibers 16 and 17 inserted through the openings 19 and 20 are introduced into the circular sleeve 13 existing in FIG.
  • the position of the sleeve 13 is not near the center of the casing of the base portion 11 in the longitudinal direction, but is particularly close to one fiber fixing knob 15 and far from the other fiber fixing knob 14. That is, the sleeve 13 is disposed in the vicinity of one of the fiber fixing knobs 15 and the optical fiber guide path 12 between the other fiber fixing knob 14 and the sleeve 13 has a shape that draws a gentle curve in the side section as shown in FIG. And the optical fiber 16 held in the optical fiber guide path 12 is guided in a bent state.
  • the optical fiber guide path 12 is composed of a groove formed in the base portion 11, and when viewed from the top surface, the openings 19 and 20 for introducing the optical fibers 16 and 17 into the substantially center of the base portion 11 are linearly formed. It is extended to tie.
  • the optical fiber guide path 12 When viewed from the side, the optical fiber guide path 12 extends horizontally from an opening 19 formed at one end of the base portion 11 substantially to the upper surface of the base portion 11 and is a fiber fixing knob. 14 passes through the fiber fixing knob 14 and is bent so as to gradually approach the bottom surface side to reach the lowest point 12b, and then gradually rises again to reach the upper surface holding point 12r. It has been extended to draw.
  • the optical fiber guide path 12 is extended substantially horizontally and inserted into the sleeve 13.
  • the optical fiber guide path 12 on the side of the fiber fixing knob 15 from the sleeve 13 extends substantially horizontally, and the optical fiber 17 is linearly guided from the sleeve 13 to the outside of the apparatus and fixed by the fiber fixing knob 15. .
  • the optical fiber can be bent depending on the shape of the optical fiber guide path 12, it can be applied in either the horizontal direction or the vertical direction.
  • the optical fiber guide path 12 is covered with the sleeve 13 by a lid portion 18 provided so as to cover the base portion 11.
  • the lid 18 is a plate made of synthetic resin such as polycarbonate or ABS having predetermined heat resistance and rigidity, and since it has transparency, the operation of inserting the optical fiber into the sleeve 13 is performed while visually observing. Can do.
  • the upper half of the sleeve 13 is fitted into a rectangular recess 22 provided on the back surface of the lid 18, and the bottom half of the sleeve 13 is fitted into a rectangular recess 21 provided in the base 11.
  • the sleeve 13 is a member for optically connecting the pair of optical fibers 16 and 17 inside thereof, and the inside of the optical fiber introduction hole 23 reduces the irregular reflection of the end face of the optical fiber called matching oil to reduce the connection loss.
  • the liquid for injection is injected, and the optical fibers 16 and 17 are connected inside the introduction hole 23 of the optical fiber.
  • the introduction hole 23 of the sleeve 13 is a hole drilled in a substantially straight line, and the diameter thereof is slightly larger than the core material of the optical fibers 16 and 17.
  • one optical fiber 17 is incorporated in the sleeve 13 so as to pass through the introduction hole 23 and then returned, and then the other optical fiber 16 is abutted in the sleeve 13 so that reliable optical connection is performed.
  • Tapers 24 are formed at both ends of the sleeve 13, and by pushing the pair of optical fibers 16 and 17 toward the sleeve 13, the tip of the optical fiber is guided along the surface of the taper 24 into the introduction hole 23.
  • the sleeve 13 is made of a ceramic material such as zirconia or a metal material such as nickel, iron, copper, cobalt, tungsten, or an alloy thereof in order to reduce connection loss.
  • the optical fiber includes a core having a central portion with high light transmittance, and a covering material covering the core, for example, An optical fiber having a diameter of ⁇ 0.25 mm or ⁇ 0.9 mm is used.
  • the diameter of the introduction hole 23 of the sleeve 13 is appropriately selected according to the diameter of the optical fiber to be introduced.
  • the optimum inner diameter of the sleeve is ⁇ 0.1252 mm to ⁇ 0.1258 mm for quartz fiber with a diameter of 0.125 mm, and there are types such as ⁇ 0.23 mm and ⁇ 0.5 mm for POF (plastic fiber).
  • a value obtained by adding ⁇ 0.002 mm to ⁇ 0.008 mm to the diameter, more preferably a value obtained by adding ⁇ 0.0002 mm to ⁇ 0.0008 mm, is preferably used as the inner diameter of the sleeve.
  • the pair of optical fibers 16 and 17 are fixed to the apparatus 10 by fiber fixing knobs 14 and 15, respectively. Specifically, the optical fibers 16 and 17 are supported by the fiber fixing knobs 14 and 15 so as to be abutted inside the sleeve 13. .
  • the fiber fixing knob 14 has a rotating piece 14a that rotates about a quarter of a circle around a rotating fulcrum 14c.
  • a hook 14m for engaging with an engaging portion 25 fixed to the base portion 11 is provided at the tip of the rotating piece 14a.
  • a frictional portion 14f is provided at the base end of the rotating piece 14a so as to contact the optical fiber 16 and push the optical fiber 16 toward the sleeve by frictional force.
  • the hook 14m of the rotating piece 14a is engaged with the engaging portion 25. 4, the optical fiber 16 is fixed in such a manner that the friction portion 14f pushes the optical fiber 16 into the lid portion 18 as shown in FIG. At this time, since the optical fiber 16 is pushed to the sleeve side as the rotating piece 14a rotates, the optical fiber 16 is pushed to the sleeve side slightly from the point where the friction portion 14f is engaged with the optical fiber 16. The optical fiber 16 is fixed, and the optical fibers are abutted in the sleeve with such a force in the sleeve direction.
  • the optical fiber 16 is inserted into the sleeve 13 to push out excess matching oil, returned to a fixed position and fixed with the fiber fixing knob 14, and then the optical fiber 17 is abutted within the sleeve 13 and is fixed with the fiber fixing knob 15.
  • the engaging portion 25 is a member for engaging with the distal end portion of the hook 14m that is elastically deformed as a result of the rotating piece 14a rotating, and is formed by projecting a part of the base portion 11.
  • the fiber fixing knob 14 is locked.
  • the fiber fixing knob 14 is fixed to the optical fiber 16.
  • the sleeve 13 is positioned closer to one optical fiber fixing knob 15, and the length of the optical fiber guide path 12 is longer on the other optical fiber fixing knob 14 side. Therefore, the optical connection can be realized while suppressing the microbending loss of the optical fiber 16 inserted into the optical fiber guide path 12.
  • the optical fiber fixing knob 15 is a short distance, but is linear and has no bent portion, so that the loss of light transmission is minimized. Further, since the deflection occurs only on the other optical fiber fixing knob 14 side, the optical connection work is simplified and the working time is shortened compared to the case where both sides of the sleeve 13 are bent.
  • an optical fiber cable 31 from which the covering material is removed near the tip end portion 32t and the optical fiber core member 32 is exposed, and a sleeve 33 for optically connecting a pair of optical fibers inside are prepared.
  • the sleeve 33 is fixed by being sandwiched between the base portion and the lid portion as described above, but is not shown in FIGS. 5 to 8.
  • An introduction hole 34 is formed inside the sleeve 33 so as to be longitudinally cut in the longitudinal direction, and tapered portions 35 for guiding the optical fiber to the introduction hole 34 are also formed at both ends of the sleeve 33.
  • Matching oil 36 is previously sealed in the introduction hole 34 of the sleeve 33 in order to suppress light loss during connection.
  • one optical fiber cable 31 is inserted into the introduction hole 34 of the sleeve 33.
  • the tip 32t is simply inserted to the vicinity of the center, but in this embodiment, One optical fiber cable 31 is inserted so that the tip end portion 32 t penetrates the sleeve 33.
  • excess matching oil 36 introduced into the introduction hole 34 of the sleeve 33 is pushed out of the introduction hole 34 of the sleeve 33. Will be.
  • the tip 32t of the optical fiber cable 31 is returned to a predetermined position in the sleeve 33 as shown in FIG.
  • the matching oil 36 remains on the inner wall of the introduction hole 34 inside the introduction hole 34 of the sleeve 33, but a gap is formed by the passage of the optical fiber core material 32 of the optical fiber cable 31. .
  • the tip end portion 32t and the tip end portion 37t are connected to the sleeve 33 as shown in FIG. These are abutted in the vicinity of the center of the optical fiber to achieve a desired optical connection.
  • the core member 37 of the optical fiber 38 is inserted into the introduction hole 34 of the sleeve 33, it has already been operated so as to penetrate the optical fiber cable 31, so that the matching oil 36 inside the introduction hole 34 has a gap.
  • the core material 37 of the optical fiber 38 can be smoothly guided into the introduction hole 34.
  • the matching oil escapes by inserting optical fibers from both sides of the introduction hole 34 of the sleeve 33.
  • the optical fiber cable 31 is inserted into the introduction hole 34 of the sleeve 33.
  • it is difficult to insert the optical fiber and a slit for releasing the matching oil is required.
  • a gap is formed in the matching oil 36 inside the introduction hole 34, and the core member 37 of the optical fiber 38 can be smoothly introduced even with the matching oil 36 having a high viscosity. 34, and the working efficiency is high.
  • the method of the present embodiment can easily perform a highly accurate connection work.
  • FIG. 9 is an example of an optical fiber connection device according to another embodiment of the present invention.
  • members having the same functions as those of the optical fiber connection device of the previous embodiment shown in FIG. 2 are assigned the same reference numerals, and redundant description is omitted here.
  • the sleeve 43 has a structure having a slit 44 for allowing the matching oil to escape, and the slit 44 is filled with an adhesive 45. Is a point.
  • the sleeve 43 is disposed in the vicinity of one of the fiber fixing knobs 15, and the optical fiber guide path 12 between the other fiber fixing knob 14 and the sleeve 43 has a gentle curve in the side cross section as shown in FIG.
  • the optical fiber 16 extended in the shape and guided by the optical fiber guide path 12 in a bent state, and the optical fiber 17 between the other fiber fixing knob 15 supports a short distance substantially linearly.
  • the tip portions of the optical fibers 16 and 17 are abutted near the center of the sleeve 43, whereby optical connection is performed.
  • a slit 44 is provided in communication with the concave portion 42 of the lid portion 48 and the sleeve 43 so as to open a joint portion where the tip portions of the optical fibers 16 and 17 are abutted with each other.
  • the slit 44 can be filled by filling the adhesive 45 after completion of the butt. For this reason, after the assembly, the strength of the optical connecting portion is maintained, and the occurrence of loss in the optical connecting portion is prevented in advance.
  • Various adhesives 45 can be used as the adhesive 45 introduced into the slit 44.
  • the same synthetic resin material as that of the lid portion 48 as a housing, epoxy, other resin materials, or Phenol, other thermosetting resins, etc. can also be used. If a silicone adhesive having the same function as that of the matching oil is used, the optical fiber can be inserted into the sleeve 43 without enclosing the matching oil, thereby further facilitating the work.
  • the position of the sleeve 43 is closer to one optical fiber fixing knob 15, and the optical fiber guide path is on the other optical fiber fixing knob 14 side. Since the length 12 can be made long, the optical connection can be realized while suppressing the microbending loss of the optical fiber 16 inserted into the optical fiber guide path 12.
  • one optical fiber fixing knob 15 is a short distance, it is linear and has no bent portion, so light transmission loss is suppressed as much as possible, and bending occurs on the other optical fiber fixing knob 14 side. Therefore, the optical connection work can be simplified and the working time can be shortened as compared with the case where both sides of the sleeve are bent.
  • the optical fiber connecting device is a small device that does not use a dedicated tool for connection, a large number of devices can be connected in a small space. *
  • the fiber fixing knobs 14 and 15 for fixing the optical fiber by turning the rotating piece to fix the optical fiber have been described.
  • the optical fiber is fixed by a structure that applies a pressing force of another structure to the optical fiber. It may be a thing.
  • the base portion has a rectangular shape, the shape is not particularly limited to a rectangular shape, and may be a polygonal column shape or a cylindrical shape, for example.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

L'invention vise à proposer un dispositif de connexion de fibre optique qui peut supprimer la perte de transmission optique, telle qu'une perte par microflexion, et peut obtenir une connexion optique avec une faible perte par un travail relativement simple. Le dispositif de connexion de fibre optique comprend une unité de base rectangulaire dans laquelle un chemin de guidage de fibre optique est défini le long d'une direction longitudinale, un manchon qui est agencé sur une partie du chemin de guidage de fibre optique défini dans l'unité de base et dans lequel des éléments d'âme exposés sont connectés les uns aux autres pour effectuer une communication optique, et deux écrous de fixation de fibre qui sont agencés sur les deux bords de l'unité de base dans la direction longitudinale et amènent la fibre optique guidée dans le chemin de guidage de fibre optique à être retenue d'une manière telle que la fibre est poussée dans le chemin de guidage en direction du manchon, le manchon étant disposé au voisinage de l'un des écrous de la paire d'écrous de fixation de fibre et le chemin de guidage de fibre, entre l'autre extrémité de la paire d'écrous de fixation de fibre et le manchon, guide la fibre optique maintenue dans un état souple.
PCT/JP2008/073529 2007-12-25 2008-12-25 Dispositif et procédé de connexion de fibre optique WO2009081964A1 (fr)

Applications Claiming Priority (2)

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JP2007-332120 2007-12-25
JP2007332120A JP2011117985A (ja) 2007-12-25 2007-12-25 光ファイバー接続装置及び光ファイバー接続方法

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WO2009081964A1 true WO2009081964A1 (fr) 2009-07-02

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY179110A (en) 2013-02-28 2020-10-28 Fujikura Ltd Optical fiber splicing tool and optical fiber splicing method
JP5871840B2 (ja) * 2013-02-28 2016-03-01 株式会社フジクラ 光ファイバ接続工具および光ファイバの接続方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10274721A (ja) * 1997-03-31 1998-10-13 Nippon Telegr & Teleph Corp <Ntt> 光ファイバ接続方法、光ファイバコネクタ及び光ファイバ研磨方法
JP2004126304A (ja) * 2002-10-03 2004-04-22 Ntt Advanced Technology Corp 光ファイバの接続部材及び光ファイバの接続方法
JP3121157U (ja) * 2006-02-13 2006-04-27 糸子 樋口 メカニカルスプライス
JP2007093997A (ja) * 2005-09-28 2007-04-12 Croster Sangyo Kk 光ファイバ接続装置
JP2007178786A (ja) * 2005-12-28 2007-07-12 Photonic Science Technology Inc メカニカルスプライス及び光ファイバの接続方法
JP2008256867A (ja) * 2007-04-03 2008-10-23 Sumitomo Electric Ind Ltd メカニカルスプライス及びメカニカルスプライスの組立方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10274721A (ja) * 1997-03-31 1998-10-13 Nippon Telegr & Teleph Corp <Ntt> 光ファイバ接続方法、光ファイバコネクタ及び光ファイバ研磨方法
JP2004126304A (ja) * 2002-10-03 2004-04-22 Ntt Advanced Technology Corp 光ファイバの接続部材及び光ファイバの接続方法
JP2007093997A (ja) * 2005-09-28 2007-04-12 Croster Sangyo Kk 光ファイバ接続装置
JP2007178786A (ja) * 2005-12-28 2007-07-12 Photonic Science Technology Inc メカニカルスプライス及び光ファイバの接続方法
JP3121157U (ja) * 2006-02-13 2006-04-27 糸子 樋口 メカニカルスプライス
JP2008256867A (ja) * 2007-04-03 2008-10-23 Sumitomo Electric Ind Ltd メカニカルスプライス及びメカニカルスプライスの組立方法

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