WO2022176235A1 - 光コネクタ用フェルールおよび光コネクタの製造方法 - Google Patents

光コネクタ用フェルールおよび光コネクタの製造方法 Download PDF

Info

Publication number
WO2022176235A1
WO2022176235A1 PCT/JP2021/029892 JP2021029892W WO2022176235A1 WO 2022176235 A1 WO2022176235 A1 WO 2022176235A1 JP 2021029892 W JP2021029892 W JP 2021029892W WO 2022176235 A1 WO2022176235 A1 WO 2022176235A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
optical fiber
ferrule
hole
clad
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/029892
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
真幸 廣瀬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP2023500515A priority Critical patent/JPWO2022176235A1/ja
Priority to CN202180062644.1A priority patent/CN116648648A/zh
Priority to US18/250,750 priority patent/US20230384530A1/en
Publication of WO2022176235A1 publication Critical patent/WO2022176235A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • 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
    • G02B6/3854—Ferrules characterised by materials
    • 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
    • G02B6/3858—Clamping, i.e. with only elastic deformation
    • 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
    • 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

Definitions

  • the present invention relates to a ferrule for an optical connector and a method for manufacturing an optical connector.
  • Patent Document 1 discloses inserting an optical fiber into a fiber hole having an inner diameter substantially the same as the outer diameter of the optical fiber by heating the ferrule.
  • the inner diameter of the fiber hole is the same as the outer diameter of the optical fiber, a gap may occur between the fiber hole and the optical fiber due to manufacturing variations.
  • the inventors of the present application conducted extensive studies and found that by making the inner diameter of the fiber hole smaller than the outer diameter of the optical fiber, it is possible to more reliably suppress the displacement of the optical fiber. However, if the inner diameter of the fiber hole is simply made smaller than the outer diameter of the optical fiber, the optical fiber cannot be passed through the fiber hole.
  • the present invention has been made in consideration of such circumstances, and manufactures a ferrule for an optical connector and an optical connector that allows an optical fiber to be inserted through a fiber hole and that can more reliably suppress misalignment of the optical fiber.
  • the purpose is to provide a method.
  • an optical connector ferrule has a main body portion in which a fiber hole for inserting an optical fiber is formed, and the main body portion has a coefficient of linear expansion of 1.7. ⁇ 10 ⁇ 5 to 3.0 ⁇ 10 ⁇ 5 , and the ratio of the inner diameter dh of the fiber hole to the outer diameter df of the clad of the optical fiber is 99.632[%] ⁇ dh/df ⁇ 99.880 It is within the [%] range.
  • the inner diameter dh of the fiber hole is smaller than the outer diameter df of the clad of the optical fiber. Therefore, it is possible to more reliably prevent a gap from being formed between the optical fiber and the fiber hole after the optical connector is assembled. Therefore, positional deviation of the optical fiber can be suppressed, and the central axis of the fiber hole and the central axis of the optical fiber can be aligned with high accuracy.
  • the coefficient of linear expansion of the material of the main body is within the range of 1.7 ⁇ 10 ⁇ 5 to 3.0 ⁇ 10 ⁇ 5 and satisfies 99.632[%] ⁇ dh/df ⁇ 99.880[%].
  • the inner diameter of the fiber hole can be made larger than the outer diameter of the clad by heating to a predetermined temperature (for example, 100° C. to 150° C.). That is, in the optical connector ferrule of the aspect described above, the optical fiber can be inserted into the fiber hole by heating to a predetermined temperature.
  • a predetermined temperature for example, 100° C. to 150° C.
  • the main body is made of a material having a coefficient of linear expansion within the range of 1.7 ⁇ 10 ⁇ 5 to 2.1 ⁇ 10 ⁇ 5 , and the ratio of the inner diameter dh of the fiber hole to the outer diameter df of the clad is It may be within the range of 99.744 ⁇ dh/df ⁇ 99.880[%].
  • the material of the main body may be PEEK, and the ratio of the inner diameter dh of the fiber hole to the outer diameter df of the clad may be within the range of 99.776[%] ⁇ dh/df ⁇ 99.864[%]. .
  • a method for manufacturing an optical connector includes a preparing step of preparing an optical fiber and a ferrule for an optical connector having a main body portion in which a fiber hole is formed; an inserting step of inserting the optical fiber into the fiber hole in a state of being heated to , and a cooling step of fixing the optical fiber to the fiber hole by cooling the main body, and a state before heating , the ratio of the inner diameter dh of the fiber hole to the outer diameter df of the clad of the optical fiber is within the range of 99.632[%] ⁇ dh/df ⁇ 99.880[%].
  • the inner diameter dh of the fiber hole is smaller than the outer diameter df of the clad of the optical fiber before heating. Therefore, it is possible to more reliably prevent a gap from being formed between the optical fiber and the fiber hole after the optical connector is assembled. Therefore, positional deviation of the optical fiber can be suppressed, and the center axes of the fiber hole and the optical fiber can be aligned with high accuracy.
  • the coefficient of linear expansion of the material of the main body is within the range of 1.7 ⁇ 10 -5 to 3.0 ⁇ 10 -5 and satisfies 99.632 [%] ⁇ dh/df ⁇ 99.880 [%], and in the insertion process Heat above 100°C.
  • the inner diameter of the fiber hole to be larger than the outer diameter of the clad. Therefore, an optical fiber can be inserted through the fiber hole. Furthermore, by performing the cooling process after the insertion process, the optical fiber can be fixed in the fiber hole by the thermal contraction force acting on the ferrule.
  • FIG. 1 is a perspective view of an optical connector according to this embodiment
  • FIG. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1; It is a figure explaining the relationship between the dimension of a fiber hole, and the dimension of an optical fiber in the state before heating. It is a figure explaining the relationship between the dimension of a fiber hole, and the dimension of an optical fiber in the state after a heating.
  • the optical connector 1A includes a plurality of optical fibers 2, a ferrule 10 (ferrule for optical connector), two guide pins 20, and a boot 30.
  • the ferrule 10 has a body portion 11 formed with a plurality of fiber holes 13 through which the optical fibers 2 are inserted.
  • Two guide holes 12 are formed in the body portion 11 .
  • the body portion 11 has a connection end face 11a through which the fiber hole 13 and the guide hole 12 are opened.
  • a filling hole 14 is formed in the upper surface of the body portion 11 . The filling hole 14 communicates with the internal space of the body portion 11 .
  • a guide pin 20 is inserted through each guide hole 12 .
  • the optical connector 1A shown in FIG. 1 is a male side and has a guide pin 20, but the female side optical connector does not have the guide pin 20.
  • FIG. By inserting the guide pin 20 of the male optical connector 1A into the guide hole 12 of the female optical connector, the ferrules 10 of the two optical connectors are aligned.
  • the shape of the ferrule 10 may be the same on the male side and the female side.
  • the optical fiber 2 has a core 2a, a clad 2b, and a coating layer 2c.
  • the clad 2b covers the core 2a
  • the coating layer 2c covers the clad 2b.
  • the core 2a and clad 2b are made of glass.
  • the refractive index of the clad 2b is lower than that of the core 2a. Therefore, light can be confined within the core 2a.
  • the coating layer 2c is made of resin or the like.
  • the coating layer 2c is removed to expose the clad 2b.
  • the end of the optical fiber 2 where the clad 2b is exposed is inserted into the fiber hole 13. As shown in FIG.
  • PEEK polyetheretherketone
  • LCP liquid crystal polymer
  • PEI polyetherimide
  • PPS polyphenylene sulfide
  • a filler such as glass fiber may be added to the above material.
  • resins other than those described above may be employed.
  • FIG. 3A shows the optical fiber 2 and the fiber hole 13 at room temperature (25° C.) before the optical fiber 2 is inserted into the fiber hole 13 .
  • the inner diameter of the fiber hole 13 and the outer diameter of the clad 2b at room temperature are represented by dh and df, respectively.
  • dh is smaller than df. That is, the inner diameter of the fiber hole 13 is smaller than the outer diameter of the clad 2b.
  • the heater H is used to heat the ferrule 10 .
  • the optical fiber 2 may be heated when the ferrule 10 is heated. Alternatively, only the ferrule 10 may be heated without heating the optical fiber 2 .
  • the temperature of the ferrule 10 during heating can be appropriately set, and is, for example, 100° C. or higher.
  • the inner diameter of the fiber hole 13 and the outer diameter of the clad 2b when heated to a predetermined temperature are represented by dh' and df', respectively.
  • dh' When heated to a predetermined temperature, dh' is greater than df'.
  • dh' When heated to a predetermined temperature, dh' is greater than df'.
  • the coefficient of linear expansion of the ferrule 10 is larger than that of the glass (core 2a and clad 2b). That is, due to the difference in coefficient of linear expansion between the ferrule 10 and the glass, the size relationship between the fiber hole 13 and the clad 2b is reversed with heating.
  • the optical fiber 2 can be inserted into the fiber hole 13 during heating because the inner diameter of the fiber hole 13 is larger than the outer diameter of the clad 2b. Then, the light emitting end (tip) of the optical fiber 2 is inserted to the position of the connection end surface 11a (insertion step).
  • the ferrule 10 After inserting the optical fiber 2 into the fiber hole 13, the ferrule 10 is cooled to normal temperature (cooling process). At this time, the fiber hole 13 tries to thermally shrink to a dimension smaller than the outer diameter of the clad 2b. This shrinkage force can fix the clad 2b in the fiber hole 13.
  • FIG. As a result, the positional relationship between the optical fiber 2 and the body portion 11 of the ferrule 10 is configured as shown in FIG. As described above, the optical fiber 2 can be fixed to the ferrule 10 .
  • the fiber hole 13 tends to thermally shrink to a dimension smaller than the outer diameter of the clad 2b, a gap is less likely to occur between the fiber hole 13 and the clad 2b. Therefore, the optical fiber 2 can be positioned with higher accuracy.
  • an adhesive or the like may be injected into the body portion 11 through the filling hole 14 after the cooling process.
  • the optical fiber 2 can be fixed to the ferrule 10 more firmly.
  • injecting the adhesive through the filling hole 14 is not essential.
  • the filling hole 14 may not be formed in the body portion 11 .
  • the protruding portion of the optical fiber 2 may be polished together with the connection end surface 11a. Thereby, the position of the end surface of the optical fiber 2 can be matched with the position of the connection end surface 11a.
  • linear expansion coefficient difference the difference in linear expansion coefficient (hereinafter simply referred to as "linear expansion coefficient difference") between the main body 11 of the ferrule 10 and the glass (core 2a and clad 2b) is used.
  • the value of dh'-df' is large.
  • the linear expansion coefficient difference increases, the value of dh'-df' can be increased during heating while maintaining dh ⁇ df at room temperature.
  • the inner diameter of the fiber hole 13 and the outer diameter of the clad 2b are equal at room temperature, the inner diameter of the fiber hole 13 becomes 0.15 ⁇ m larger than the outer diameter of the clad 2b when heated to 100°C.
  • the optical fiber 2 can be inserted into the fiber hole 13 by heating the ferrule 10 to 100° C. or higher in the insertion process.
  • the numerical value of "dh'-df'" can be calculated from the linear expansion coefficient difference and the dimensions of dh and df at room temperature.
  • Material B has a larger coefficient of linear expansion than Material A. Therefore, the inner diameter of the fiber hole 13 becomes larger with heating. Therefore, material B is larger than material A when the value of "dh'-df'" is compared. Similarly, for other materials, the larger the coefficient of linear expansion, the larger the value of "dh'-df'".
  • the dh/df value for each material is 99.880% or less.
  • the inner diameter dh of the fiber hole 13 at room temperature should be 99.88% or higher of the outer diameter df of the clad 2b.
  • the optical fiber 2 can be inserted into the fiber hole 13 during heating.
  • the linear expansion coefficients of the materials shown in Materials A to E are within the range of 1.7 ⁇ 10 ⁇ 5 to 3.0 ⁇ 10 ⁇ 5 .
  • the lower limit of dh/df is 99.632%. That is, when the material of the ferrule 10 is PPS (GF 60%), the inner diameter dh of the fiber hole 13 at room temperature is set to 99.632% or more of the outer diameter df of the clad 2b, and the heating temperature is set to 150° C. or higher. Thereby, the optical fiber 2 can be inserted into the fiber hole 13 .
  • the main body 11 of the ferrule 10 is formed of a material having a coefficient of linear expansion within the range of 1.7 ⁇ 10 ⁇ 5 to 3.0 ⁇ 10 ⁇ 5
  • the optical fiber 2 at room temperature is It is proposed that the ratio of the inner diameter dh of the fiber hole 13 to the outer diameter df of the clad 2b be within the range of 99.632[%] ⁇ dh/df ⁇ 99.880[%]. According to such a configuration, the inner diameter dh of the fiber hole 13 at room temperature is smaller than the outer diameter df of the clad 2b.
  • the optical fiber 2 can be inserted through the fiber hole 13 .
  • this specification proposes the following as a method for manufacturing the optical connector 1A. That is, a preparation step of preparing the optical fiber 2 and the ferrule 10 having the body portion 11 in which the fiber hole 13 is formed; and a cooling step of fixing the optical fiber 2 in the fiber hole 13 by cooling the main body 11, wherein the fiber
  • the ratio of the inner diameter dh of the hole 13 is within the range of 99.632 [%] ⁇ dh/df ⁇ 99.880 [%]. According to such a manufacturing method, it is possible to provide the optical connector 1 ⁇ /b>A that suppresses the displacement of the optical fiber 2 with respect to the fiber hole 13 .
  • the materials A, C, D, and E have coefficients of linear expansion within the range of 1.7 ⁇ 10 ⁇ 5 to 2.1 ⁇ 10 ⁇ 5 .
  • the lower limit of dh/df is 99.744%. That is, when the material of the ferrule 10 is LCP (GF 50%), the inner diameter dh of the fiber hole 13 at room temperature should be 99.744% or more of the outer diameter df of the clad 2b, and the heating temperature should be 150° C. or higher.
  • the optical fiber 2 can be inserted into the fiber hole 13 .
  • the body portion 11 of the ferrule 10 is formed of a material having a linear expansion coefficient within the range of 1.7 ⁇ 10 ⁇ 5 to 2.1 ⁇ 10 ⁇ 5 so that the clad 2b of the optical fiber 2 is It is proposed that the ratio of the inner diameter dh of the fiber hole 13 to the outer diameter df be within the range of 99.744[%] ⁇ dh/df ⁇ 99.880[%]. With such a configuration, the shape of the ferrule 10 after heating and cooling is more stable, and the optical fiber 2 can be positioned with higher accuracy.
  • PEEK has the advantage of being excellent in heat resistance.
  • the lower limit of dh/df is 99.776%.
  • the inner diameter dh of the fiber hole 13 at room temperature should be 99.776% or more of the outer diameter df of the clad 2b, and the heating temperature should be 150° C. or higher.
  • the optical fiber 2 can be inserted into the fiber hole 13 . If the dh/df value at room temperature is 99.848%, the heating temperature should be 100° C. or higher.
  • PEEK is used as the material of the main body 11, and the ratio of the inner diameter dh of the fiber hole 13 to the outer diameter df of the clad 2b of the optical fiber 2 at room temperature is 99.776[%] ⁇ dh/df ⁇ 99.8848. It is suggested to be within the [%] range. With such a configuration, it is possible to provide the ferrule 10 capable of positioning the optical fiber 2 with high accuracy and having heat resistance.
  • the embodiment described a ferrule 10 having a plurality of fiber holes 13 .
  • the ferrule 10 may have one fiber hole 13 .
  • the shape of the ferrule 10 can be changed as appropriate, and may be cylindrical, for example.
  • optical connector 2 optical fiber 2b
  • clad 10 optical fiber 11

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
PCT/JP2021/029892 2021-02-17 2021-08-16 光コネクタ用フェルールおよび光コネクタの製造方法 Ceased WO2022176235A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2023500515A JPWO2022176235A1 (https=) 2021-02-17 2021-08-16
CN202180062644.1A CN116648648A (zh) 2021-02-17 2021-08-16 光连接器用插芯以及光连接器的制造方法
US18/250,750 US20230384530A1 (en) 2021-02-17 2021-08-16 Ferrule for optical connector and method of manufacturing optical connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021023527 2021-02-17
JP2021-023527 2021-02-17

Publications (1)

Publication Number Publication Date
WO2022176235A1 true WO2022176235A1 (ja) 2022-08-25

Family

ID=82931303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/029892 Ceased WO2022176235A1 (ja) 2021-02-17 2021-08-16 光コネクタ用フェルールおよび光コネクタの製造方法

Country Status (4)

Country Link
US (1) US20230384530A1 (https=)
JP (1) JPWO2022176235A1 (https=)
CN (1) CN116648648A (https=)
WO (1) WO2022176235A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024024348A1 (ja) * 2022-07-28 2024-02-01 古河電気工業株式会社 フェルール、フェルールの製造方法、フェルール付きファイバリボン及びフェルール付きファイバリボンの製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12436343B2 (en) * 2022-02-16 2025-10-07 Corning Research & Development Corporation Multi-fiber ferrule end face features and corresponding methods thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141241A (en) * 1976-05-19 1977-11-25 Fujitsu Ltd Fixing method of light transmitting body terminal
JPS61285282A (ja) * 1985-06-12 1986-12-16 Polyplastics Co 光伝送路接続端子組成物
WO1995025770A1 (en) * 1994-03-18 1995-09-28 Mitsubishi Denki Kabushiki Kaisha Resin composition for molding precision parts, and sleeve and ferrule produced therefrom
JP2000098187A (ja) * 1998-09-17 2000-04-07 Furukawa Electric Co Ltd:The 光フェルールおよび光フェルールへの光ファイバ固定方法
JP2012198537A (ja) * 2011-03-10 2012-10-18 Ntn Corp 光コネクタ部材およびその製造方法
US20150219860A1 (en) * 2012-10-22 2015-08-06 Corning Optical Communications LLC Methods of securing one or more optical fibers to a ferrule
JP2020160351A (ja) * 2019-03-27 2020-10-01 住友電気工業株式会社 レンズ部品の製造方法、及びレンズ部品
WO2021024932A1 (ja) * 2019-08-07 2021-02-11 株式会社フジクラ 光通信部品用樹脂組成物及びこれを用いた光通信部品

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141241A (en) * 1976-05-19 1977-11-25 Fujitsu Ltd Fixing method of light transmitting body terminal
JPS61285282A (ja) * 1985-06-12 1986-12-16 Polyplastics Co 光伝送路接続端子組成物
WO1995025770A1 (en) * 1994-03-18 1995-09-28 Mitsubishi Denki Kabushiki Kaisha Resin composition for molding precision parts, and sleeve and ferrule produced therefrom
JP2000098187A (ja) * 1998-09-17 2000-04-07 Furukawa Electric Co Ltd:The 光フェルールおよび光フェルールへの光ファイバ固定方法
JP2012198537A (ja) * 2011-03-10 2012-10-18 Ntn Corp 光コネクタ部材およびその製造方法
US20150219860A1 (en) * 2012-10-22 2015-08-06 Corning Optical Communications LLC Methods of securing one or more optical fibers to a ferrule
JP2020160351A (ja) * 2019-03-27 2020-10-01 住友電気工業株式会社 レンズ部品の製造方法、及びレンズ部品
WO2021024932A1 (ja) * 2019-08-07 2021-02-11 株式会社フジクラ 光通信部品用樹脂組成物及びこれを用いた光通信部品

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024024348A1 (ja) * 2022-07-28 2024-02-01 古河電気工業株式会社 フェルール、フェルールの製造方法、フェルール付きファイバリボン及びフェルール付きファイバリボンの製造方法
JP2024017752A (ja) * 2022-07-28 2024-02-08 古河電気工業株式会社 フェルール、フェルールの製造方法、フェルール付きファイバリボン及びフェルール付きファイバリボンの製造方法
JP7687998B2 (ja) 2022-07-28 2025-06-03 古河電気工業株式会社 フェルール、フェルールの製造方法、フェルール付きファイバリボン及びフェルール付きファイバリボンの製造方法

Also Published As

Publication number Publication date
CN116648648A (zh) 2023-08-25
JPWO2022176235A1 (https=) 2022-08-25
US20230384530A1 (en) 2023-11-30

Similar Documents

Publication Publication Date Title
JP7559766B2 (ja) 光ファイバ接続部品及び光ファイバ接続構造
US11054586B2 (en) Optical connector and optical connection structure
CN104412143B (zh) 具有弯曲外部对准表面的光纤连接器套箍
US7556441B2 (en) Optical connector and process for connecting optical fibers
WO2022176235A1 (ja) 光コネクタ用フェルールおよび光コネクタの製造方法
WO2012011950A1 (en) Fiber optic connector and alignment mechanism for single lens multi-fiber connector
JPS61502496A (ja) 光ファイバ用コネクタおよびこのコネクタにより構成された成品
US11543599B2 (en) Ferrules including keying features and fiber optic junctions including the same
WO2024024348A1 (ja) フェルール、フェルールの製造方法、フェルール付きファイバリボン及びフェルール付きファイバリボンの製造方法
JP7828489B2 (ja) フェルール、光コネクタおよび光コネクタの製造方法
WO2020145010A1 (ja) 光コネクタの製造方法
WO2023199632A1 (ja) 光ファイバ保持部品、光ファイバ結合構造体、光コネクタ、及び光結合構造
CN106707421A (zh) 光纤插芯组件及其制造方法、光纤连接器
JP7388368B2 (ja) フェルール及び光コネクタ
TWI890959B (zh) 多芯光套管、多芯光連接器及多芯光套管的製造方法
JP2018151416A (ja) 光コネクタ
WO2024142472A1 (ja) 光ファイバ保持部品およびフェルールアセンブリ
JP2005309367A (ja) 光ファイバ接続器と光ファイバ接続体及び光ファイバの接続方法
JP3405969B2 (ja) 変換コネクタ用プラスチック割りスリーブ
JP7724941B1 (ja) 光コネクタ、および光接続構造
JP4140276B2 (ja) 光コネクタの製造方法
WO2023149012A1 (ja) バンドルファイバコネクタ及びファイバコネクタの製造方法
WO2024262254A1 (ja) 光ファイバ保持部品、光ファイバ結合構造体、光コネクタ、光結合構造、および光ファイバ結合構造体の製造方法
JP3218262B2 (ja) 光導波路部品
JP2000199834A (ja) 光ファイバケーブルの多心コネクタ製造用樹脂組成物及びこれを用いて形成した光ファイバケーブル用多心コネクタ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21926664

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023500515

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202180062644.1

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 18250750

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21926664

Country of ref document: EP

Kind code of ref document: A1