WO2017013930A1 - レンズ付き光ファイバコネクタ - Google Patents
レンズ付き光ファイバコネクタ Download PDFInfo
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- WO2017013930A1 WO2017013930A1 PCT/JP2016/064372 JP2016064372W WO2017013930A1 WO 2017013930 A1 WO2017013930 A1 WO 2017013930A1 JP 2016064372 W JP2016064372 W JP 2016064372W WO 2017013930 A1 WO2017013930 A1 WO 2017013930A1
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- WIPO (PCT)
- Prior art keywords
- lens
- optical fiber
- ferrule
- central axis
- ferrules
- Prior art date
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Classifications
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- 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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- 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
- G02B6/3853—Lens inside the ferrule
-
- 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
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
-
- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
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- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3882—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule ends
-
- 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
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
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- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
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- 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
- G02B6/40—Mechanical coupling means having fibre bundle mating means
- G02B6/403—Mechanical coupling means having fibre bundle mating means of the ferrule type, connecting a pair of ferrules
Definitions
- the present invention relates to an optical fiber connector with a lens for connecting optical fibers with a lens to each other.
- optical fibers In connection between optical fibers, it is generally known that optical fibers whose end surfaces are formed in an oblique shape are opposed to each other in order to prevent reflected return light at the end surfaces of the optical fibers. Thus, it has been proposed to position a pair of optical fibers in grooves whose axes are shifted so that the outgoing optical axis of one optical fiber coincides with the core center of the other optical fiber (see Patent Document 1). .
- an optical fiber with a lens is known as an optical fiber collimator that emits light emitted from an optical fiber as parallel light through a lens.
- a GRIN lens reffractive index distribution type lens
- An optical fiber with a GRIN lens in which an end portion of an optical fiber is fused is known.
- the optical fibers with lenses are connected to each other by arranging the optical fibers with lenses facing and coaxially, so that the light emitted from one optical fiber becomes parallel light by one lens and is condensed by the other lens. The light enters the other optical fiber.
- a sufficient distance is secured between lens end faces (see Patent Document 2 below).
- the connector connection between the optical fibers with lenses can reduce the energy density of the emitted light by beam expansion by the collimator, and can be connected with the connection end faces being in non-contact with each other. Due to the decrease in energy density, it is possible to avoid the phenomenon that heat is generated due to the concentration of energy on the foreign matter, and the connection end face and the inside of the fiber are damaged by a fiber fuse or the like. In addition, non-contact enables optical coupling even if there is a small foreign object on the connection end face, eliminating the trouble of cleaning the connection end face, etc. Can be avoided.
- the reflected return light at the connection end face is a big problem.
- GRIN In the connector connection between the optical fibers with GRIN lenses that make the connection end face non-contact, GRIN
- the reflected return light at the front end surface of the GRIN lens generated by the difference in refractive index between the GRIN lens and the air layer is almost incident on the core of the optical fiber in the reverse direction. It will be transmitted (back reflection).
- AR coating antireflection coating
- connection when the end face of the optical fiber or the end face of the optical fiber with a lens is tilted with respect to the mechanical axis is to accurately set the parallelism of the end face and the offset amount of the optical fiber to be connected to each other or the optical fiber with a lens.
- An optical fiber or an optical fiber with a lens is held and fixed by a groove (see Patent Documents 1 and 4), and such a conventional technique cannot provide a detachable connector connection.
- a sleeve that can detachably hold an optical fiber with a lens so as to be connected to each other in the state shown in FIG. 1, such a sleeve is not suitable for a zirconia (ceramic) suitable as a sleeve material. There was a problem that it was difficult to manufacture at low cost and with high accuracy.
- the present invention is an example of a problem to deal with such a problem. That is, when connecting optical fibers with lenses in a non-contact manner between the end faces, the end faces are inclined with respect to the mechanical axis to suppress back reflection and to realize an inexpensive and highly accurate detachable connector. It is.
- an optical fiber connector with a lens has the following configuration.
- a ferrule to which an optical fiber with a lens is attached and having an end surface inclined with respect to a central axis, and a coupling member that couples the ferrules in a non-contact state in a non-contact state so that the end surfaces are parallel to each other are coaxially connected.
- the ferrule includes one or a plurality of holes parallel to the central axis at a position eccentric from the central axis, and the optical fiber with a lens is disposed in the hole and attached to the pair of ferrules.
- the optical fiber with a lens, wherein the optical fiber with a lens has a lens end face inclined along the end face of the ferrule so as to be optically coupled to each other.
- the optical fiber connector with a lens of the present invention having such a feature has the above-described characteristics, and when the optical fibers with a lens are connected to each other in an end surface non-contact manner, the lens end surface is inclined with respect to the mechanical axis and rearward.
- An inexpensive and highly accurate detachable connector can be realized by a coupling member that suppresses reflection and connects a pair of ferrules coaxially.
- the optical fiber connector with lens 1 opposes the optical fibers with lenses 10 in which the ends of the optical fibers 11 are fusion-connected to the center of a lens (GRIN lens) 12.
- the pair of ferrules 2 to which the optical fiber with lens 10 is attached and the sleeve 3 that is a coupling member that couples the pair of ferrules 2 in a non-contact state and is coaxially coupled are provided.
- a pair of ferrules 2 including the optical fiber 10 with a lens are arranged opposite to each other.
- the optical fiber 11 a single mode optical fiber, a large mode area (LMA) optical fiber, a polarization plane preserving (polarization maintaining) optical fiber, a multimode optical fiber, a multicore optical fiber, or the like can be used.
- the outer diameter of the lens 12 may be different from the outer diameter of the clad of the optical fiber 11, but is preferably the same.
- the outer diameter of the lens 12 is, for example, 125 ⁇ m (124.5 to 125.5 ⁇ m) in a single mode optical fiber used in a general optical communication field.
- the ferrule 2 has a hole 20 formed in the cylindrical body along the central axis L of the cylindrical body, and the end of the optical fiber 10 with a lens is inserted into and fixed to the hole 20.
- the ferrule 2 has an end face 21 that faces the end face 21, and the end face 21 is inclined with respect to the central axis L.
- the end surface 21 of the ferrule 2 is inclined so that the pair of optical fibers 10 with a lens are optically coupled to each other, and the lens end surface of the optical fiber 10 with a lens is inclined along it.
- the end face 21 of the ferrule 2 and the lens end face of the optical fiber 10 with a lens are arranged such that an optical axis P2 in which the optical fiber 10 with a lens optically couples between the pair of ferrules 2 intersects the extension of the central axis L. Is tilted.
- the ferrule 2 forms a hole 20 parallel to the center axis L at a position eccentric from the center axis L of the outer periphery by a distance S, and the optical fiber with lens 10 is attached to the hole 20 so that the optical fiber with lens is attached.
- the ten mechanical axes P1 are eccentric with respect to the central axis L by a distance S.
- the sleeve 3 that holds the pair of ferrules 2 coaxially has a point O at which the optical axis P2 of the optical fiber with lens 10 that optically couples between the pair of ferrules 2 and the extension of the central axis L of the outer periphery of the ferrule 2 intersect.
- the ferrule 2 is positioned and held around the central axis L so that the end faces 21 of the pair of ferrules 2 are point-symmetrically opposed.
- the central axis L of the pair of ferrules 2 is held by the sleeve 3 so that it coincides with the central axis of the sleeve 3 and is arranged coaxially.
- the distance between the end faces 21 of the ferrule 2 facing each other in the sleeve 3 is such that the light emitted from the optical fiber with lens 10 attached to one ferrule 2 according to the emission angle ⁇ corresponding to the inclination angle of the end face 21 is
- the point is appropriately set so as to enter the optical fiber 10 with a lens attached to the other ferrule 2 through the point O. This enables highly efficient optical coupling between the pair of optical fibers 10 with a lens by simple mechanical engagement in which the pair of ferrules 2 are brought into contact with each other in the sleeve 3.
- the inclination angle of the end face 21 of the ferrule 2 and the end face of the optical fiber 10 with a lens may be any angle that can suppress reflected return light at the end face and suppress back reflection. Specifically, if the inclination is 4 ° or more, preferably 6 ° or more, and more preferably 8 ° or more with respect to the plane X perpendicular to the optical axis, back reflection can be effectively suppressed. .
- FIG. 3 shows a more specific configuration example of the optical fiber connector with lens 1.
- the ferrule 2 in the optical fiber connector with lens 1, the ferrule 2 includes an engaging portion 22 that is restricted from rotating about the central axis L, and the sleeve 3 is a member to which the engaging portion 22 of the ferrule 2 is engaged.
- An engagement portion 30 is provided.
- the engaging portion 22 is a flange portion provided on the outer periphery of the ferrule 2
- the engaged portion 30 is a convex or concave portion that extends along the central axis L inside the sleeve 3.
- the ferrule 2 When the engaging portion 22 of the ferrule 2 is engaged with the engaged portion 30 of the sleeve 3, the ferrule 2 is positioned and held around the central axis L in the sleeve 3, and further, between the end surfaces 21 in the sleeve 3. The interval is positioned at the set distance.
- the engaged portion 30 (30A) provided on one end side of the sleeve 3 and the fitted portion 30 (30B) provided on the other end side of the sleeve 3 are rotated by 180 ° around the central axis L. Placed in position.
- the engaging portion (flange portion) 22 of the ferrule 2 is disposed at a specific position around the central axis L with respect to the eccentric direction from the central axis L toward the mechanical axis P1 of the optical fiber 10 with a lens. That is, the position around the central axis L of the engaging portion 22 and the eccentric direction of the mechanical axis P1 are uniquely determined. Thereby, in the polishing process when the inclined surface is formed on the end surface 21, it is possible to easily perform a process of matching the direction of the inclined surface with the eccentric direction.
- the end surface 21 of the ferrule 2 is fixed with the position of the engaging portion 22 in a specific direction, and the fixed end surface 21 is polished. Set the direction.
- the end surface 21 may be processed into a curved surface as shown in FIG. Further, the end face 21 may be provided with an antireflection coating such as a dielectric multilayer film for the purpose of reducing the Fresnel reflection to improve the transmittance or further suppressing the back reflection. Furthermore, the end face 21 can be coated with a functional film having other functions.
- an antireflection coating such as a dielectric multilayer film for the purpose of reducing the Fresnel reflection to improve the transmittance or further suppressing the back reflection.
- the end face 21 can be coated with a functional film having other functions.
- optical fiber connector with a lens 1 The advantages of such an optical fiber connector with a lens 1 are as follows. First, the outgoing light beam is expanded by a lens (GRIN lens) 12 fused to the end of the optical fiber 11, so that the transmission capacity is increased. In the high power application, the energy density at the end face 21 is dissipated and foreign matter adheres to the end face 21, so that problems such as damage to the end face 21 due to heat burn and fiber fuse can be avoided.
- lens GRIN lens
- the optical fiber with a lens 10 can be optically designed to obtain optical coupling via a “beam waist” as disclosed in Patent Document 2.
- it can be designed so that the position of the beam waist is located on the plane X.
- FIG. 4 shows an optical fiber connector with lens 1A according to another embodiment of the present invention.
- the lens-attached optical fiber connector 1A is a multi-core connector, and includes a pair of ferrules 2A and a guide pin 4 that is a coupling member that coaxially couples the pair of ferrules 2A in a non-contact state.
- the ferrule 2A includes a plurality of holes 20 and a pair of guide holes.
- the ferrule 2A has a rectangular cross section, and the central axis L faces the Z direction in the figure.
- the illustrated X direction is the width direction of the ferrule 2A orthogonal to the direction of the central axis L
- the illustrated Y direction is the thickness direction of the ferrule 2A orthogonal to the direction of the central axis L.
- the guide hole 23 is formed along the central axis L so that the guide pin 4 is inserted along the central axis L.
- the ferrule 2A includes an end face 21 inclined with respect to the central axis, as in the above-described embodiment.
- the guide pins 4 are inserted into the guide holes 23 of the pair of opposing ferrules 2A, thereby coupling the pair of ferrules 2A so that the end surfaces 21 are parallel in a non-contact state.
- the same ferrule 2 ⁇ / b> A is opposed to each other while being reversed in the Y direction in the drawing so that the guide hole 23 is coaxial, and the guide hole 23 in one ferrule 2 ⁇ / b> A is vertically aligned on the rectangular end surface 21. And it is arrange
- the optical fiber with lens 10 disposed in the plurality of holes 20 in one ferrule 2A includes a lens (GRIN lens) 12 having the same lens length, and the end surface of the lens 12 extends along the end surface 21 of the ferrule 2A. Are inclined in the same direction. As a result, all the light emitted from the plurality of optical fibers with a lens 10 attached to one ferrule 2A has a parallel optical axis P2.
- the ferrule 2 ⁇ / b> A has a plurality (four in the drawing) of holes 20 arranged at equal intervals in parallel with the straight line X ⁇ b> 1 connecting the centers of the pair of guide holes 23. And the arrangement
- the end surface 21 and the end surface of the optical fiber with lens 10 are center axes L so that the optical axis P2 of the optical fiber with lens 10 optically coupled to each other is parallel to a straight line connecting the array centers G of the pair of ferrules 2A. It is inclined with respect to.
- a plurality (four in the figure) of holes 20 are arranged in two rows at equal intervals in parallel with the straight line X1 connecting the centers of the pair of guide holes 23.
- positioning center G of the some hole 20 is arrange
- this example also includes the end face 21 and the lens so that the optical axis P2 of the optical fiber with lens 10 optically coupled to each other is parallel to a straight line connecting the array centers G of the pair of ferrules 2A.
- the end face of the optical fiber 10 is inclined with respect to the central axis L.
- the ferrule 2A has a plurality (four in the figure) of holes 20 arranged at equal intervals on a straight line X1 connecting the centers of the pair of guide holes 23.
- the arrangement center G of the plurality of holes 20 is arranged at a position eccentric with respect to the central axis L in the X direction in the figure by a distance S3.
- the end face 21 is also arranged so that the optical axis P ⁇ b> 2 of the optical fiber with lens 10 that is optically coupled to each other is parallel to the straight line connecting the array centers G of the pair of ferrules 2 ⁇ / b> A.
- the end face of the optical fiber with lens 10 is inclined with respect to the central axis L.
- the beam enlargement by the lens 12 and the end face 21 of the ferrule 2A are separated from each other.
- the coupling loss due to the reflection can be reduced, and the rear reflection due to the end surface reflection can be eliminated by inclining the end surface 21.
- 1, 1A Optical fiber connector with lens
- 2, 2A Ferrule
- 3 Sleeve
- 4 Guide pin
- 10 optical fiber with lens
- 11 optical fiber
- 12 Lens (GRIN lens)
- 20 hole
- 21 end face
- 22 engaging portion
- 23 guide hole
- 30 engaged portion
- L central axis
- P1 mechanical axis
- P2 optical axis
- G array center
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Abstract
Description
レンズ付き光ファイバが装着され、中心軸に対して傾斜した端面を有するフェルールと、一対の前記フェルールを前記端面が平行になるように非接触状態で対向させて同軸上に結合する結合部材とを備え、前記フェルールは、前記中心軸から偏芯した位置に前記中心軸に平行な一つ又は複数の孔を備え、当該孔に前記レンズ付き光ファイバが配置され、一対の前記フェルールに装着された前記レンズ付き光ファイバは、互いに光結合するように、前記フェルールの端面に沿って傾斜するレンズ端面を有することを特徴とするレンズ付き光ファイバコネクタ。
2,2A:フェルール,3:スリーブ,4:ガイドピン,
10:レンズ付き光ファイバ,11:光ファイバ,
12:レンズ(GRINレンズ),
20:孔,21:端面,22:係合部,23:ガイド孔,
30:被係合部,L:中心軸,P1:機械軸,P2:光軸,G:配列中心
Claims (9)
- レンズ付き光ファイバが装着され、中心軸に対して傾斜した端面を有するフェルールと、一対の前記フェルールを前記端面が平行になるように非接触状態で対向させて同軸上に結合する結合部材とを備え、
前記フェルールは、前記中心軸から偏芯した位置に前記中心軸に平行な一つ又は複数の孔を備え、当該孔に前記レンズ付き光ファイバが配置され、
一対の前記フェルールに装着された前記レンズ付き光ファイバは、互いに光結合するように、前記フェルールの端面に沿って傾斜するレンズ端面を有することを特徴とするレンズ付き光ファイバコネクタ。 - 前記結合部材は、一対のガイドピンであり、
前記フェルールは、前記ガイドピンが前記中心軸に沿って挿通されるガイド孔を備え、
前記ガイド孔の中心を結ぶ直線と平行に前記複数の孔が配列され、
前記複数の孔の配列中心が前記中心軸に対して偏心した位置に配置されていることを特徴とする請求項1記載のレンズ付き光ファイバコネクタ。 - 互いに光結合する前記レンズ付き光ファイバの光軸が、一対の前記フェルールにおける前記配列中心を結ぶ直線と平行になるように、前記レンズ付き光ファイバのレンズ端面が傾斜していることを特徴とする請求項2に記載のレンズ付き光ファイバコネクタ。
- 前記結合部材が一対の前記フェルールを同軸上に保持するスリーブであり、
前記フェルールは、前記一つの孔に前記レンズ付き光ファイバが配置され、
互いに結合する前記レンズ付き光ファイバの光軸が前記中心軸の延長と交差するように、前記レンズ付き光ファイバのレンズ端面を傾斜させ、
前記スリーブは、前記光軸と前記中心軸の延長とが交差する点を基準にして前記フェルールを対向させ、前記フェルールを前記中心軸回りに位置決め保持することを特徴とする請求項1記載のレンズ付き光ファイバコネクタ。 - 前記スリーブは、一対の前記フェルールの端面が点対称に対向するように、前記フェルールを位置決め保持することを特徴とする請求項4記載のレンズ付き光ファイバコネクタ。
- 前記フェルールは、前記中心軸回りの回転が規制される係合部を備え、
前記スリーブは、前記係合部が係合される被係合部を備え、
前記スリーブの一端側に設けた前記被係合部と前記スリーブの他端側に設けた前記被係合部とは、前記中心軸回りに180°回転した位置に配置されることを特徴とする請求項4又は5記載のレンズ付き光ファイバコネクタ。 - 前記フェルールの係合部は、前記中心軸から前記レンズ付き光ファイバの機械軸に向かう偏芯方向に対して、前記中心軸回りの特定した位置に配置されていることを特徴とする請求項6記載のレンズ付き光ファイバコネクタ。
- 前記レンズ付き光ファイバは、屈折率分布型レンズの中心に光ファイバの端部が融着接続されていることを特徴とする請求項1~7のいずれか1項に記載のレンズ付き光ファイバ。
- 前記レンズ付き光ファイバの後方反射が-50dB以下であることを特徴とする請求項1~8のいずれか1項に記載のレンズ付き光ファイバコネクタ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680042797.9A CN107850740A (zh) | 2015-07-22 | 2016-05-13 | 用于带透镜的光纤的连接器 |
US15/580,464 US10564365B2 (en) | 2015-07-22 | 2016-05-13 | Connector for optical fibers with lenses |
EP16827494.2A EP3327475A4 (en) | 2015-07-22 | 2016-05-13 | CONNECTOR FOR OPTICAL FIBERS WITH LENSES |
JP2017529482A JP6806059B2 (ja) | 2015-07-22 | 2016-05-13 | レンズ付き光ファイバコネクタ |
KR1020187000062A KR20180022769A (ko) | 2015-07-22 | 2016-05-13 | 렌즈 부착 광파이버 커넥터 |
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JP2015144667 | 2015-07-22 | ||
JP2015-144667 | 2015-07-22 |
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US (1) | US10564365B2 (ja) |
EP (1) | EP3327475A4 (ja) |
JP (1) | JP6806059B2 (ja) |
KR (1) | KR20180022769A (ja) |
CN (1) | CN107850740A (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017142373A (ja) * | 2016-02-10 | 2017-08-17 | 住友電気工業株式会社 | 光コネクタフェルール |
WO2018183496A1 (en) * | 2017-03-29 | 2018-10-04 | Commscope Technologies Llc | Multi-fiber fiber optic connector |
WO2019096801A1 (de) * | 2017-11-16 | 2019-05-23 | Laser Components Gmbh | Faserbaugruppe, resonator und verfahren zum herstellen einer faserbaugruppe |
JP2019216161A (ja) * | 2018-06-12 | 2019-12-19 | 住友電気工業株式会社 | 光ファイバ増幅器 |
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WO2017066022A1 (en) * | 2015-10-12 | 2017-04-20 | 3M Innovative Properties Company | Optical waveguide positioning feature in a multiple waveguides connector |
JPWO2021039572A1 (ja) * | 2019-08-28 | 2021-03-04 | ||
CN114616499A (zh) | 2019-11-05 | 2022-06-10 | 美国康涅克有限公司 | 简化模制的透镜光纤套管 |
CN112731594B (zh) * | 2021-03-31 | 2021-08-17 | 武汉光谷航天三江激光产业技术研究院有限公司 | 一种光纤智能耦合系统及方法 |
FR3144324A1 (fr) * | 2022-12-22 | 2024-06-28 | Orange | Interconnexion d'une fibre à cœur creux avec une fibre monomode en silice standard |
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Also Published As
Publication number | Publication date |
---|---|
KR20180022769A (ko) | 2018-03-06 |
EP3327475A4 (en) | 2019-02-27 |
US20180143383A1 (en) | 2018-05-24 |
JP6806059B2 (ja) | 2021-01-06 |
US10564365B2 (en) | 2020-02-18 |
JPWO2017013930A1 (ja) | 2018-05-10 |
EP3327475A1 (en) | 2018-05-30 |
CN107850740A (zh) | 2018-03-27 |
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