WO2001035140A1 - Connecteur optique et emetteur-recepteur optique - Google Patents

Connecteur optique et emetteur-recepteur optique Download PDF

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Publication number
WO2001035140A1
WO2001035140A1 PCT/JP2000/007825 JP0007825W WO0135140A1 WO 2001035140 A1 WO2001035140 A1 WO 2001035140A1 JP 0007825 W JP0007825 W JP 0007825W WO 0135140 A1 WO0135140 A1 WO 0135140A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
optical fiber
light
face
connector
Prior art date
Application number
PCT/JP2000/007825
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Ota
Original Assignee
Photonixnet Kabushiki Kaisha
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 Photonixnet Kabushiki Kaisha filed Critical Photonixnet Kabushiki Kaisha
Priority to AU13015/01A priority Critical patent/AU1301501A/en
Publication of WO2001035140A1 publication Critical patent/WO2001035140A1/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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • 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
    • G02B6/3813—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for transmission of high energy beam
    • 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
    • G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
    • G02B2006/4297—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources having protection means, e.g. protecting humans against accidental exposure to harmful laser radiation
    • 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
    • G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/3822—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with beveled 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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features

Definitions

  • the present invention relates to an optical connector used in an optical signal transmission system using an optical fiber, and in particular, when the optical connector is opened, light transmitted through the optical fiber is inadvertently released into free space and the human And an eye-safe type optical connector for preventing health damage to the eyes.
  • the present invention also relates to an optical transceiver having a function of transmitting and receiving an optical signal in an optical signal transmission system using an optical fiber, and in particular, when the optical fiber cable is disconnected from the optical transceiver, light is not required from the optical transceiver.
  • the present invention relates to an optical transceiver provided with an eye-safe structure for preventing inadvertent release into the air and causing health damage to human eyes. Background art
  • FIG. 1 This structure is an optical fiber that propagates through the core 23a of the optical fiber 22a.
  • the purpose is to reduce the reflected return light by excluding the reflected light 25 at the joint surface 21 between 22a and 22b out of the wave condition of the optical fiber 22a. / 1] had been done. Most of the light is in the core 2 of the optical fiber 22 b as indicated by reference numeral 26.
  • the angle ⁇ between the normal line of the bonding surface 21 and the optical axis has been set to a value between 0 ° and 10 °.
  • an optical signal when an optical connector is opened, an optical signal is emitted to a free sky and careless It is intended to prevent serious disabilities, especially health hazards to the human eye.
  • an optical connector provided with an optical fiber whose end face is obliquely cut there is another danger of health damage that the tip of the optical fiber is sharp and may be stuck in a hand or the like.
  • the present invention is aimed at preventing such health damage.
  • Another object of the present invention is to provide an optical transceiver as well as an optical transceiver with an eye-safe structure.
  • the optical connector of the present invention when the optical connector is open, the angle of inclination of the end surface of the optical fiber satisfies the condition of total reflection with respect to light propagating in the fiber. It is characterized by the following. Further, the optical connector according to the present invention is characterized in that, when the optical connector is not open, the joint surfaces of the two optical fibers are connected with an optical matching oil therebetween. Further, a light-shielding plate for blocking light is provided at the back of the tip of the end face of the optical fiber. In the optical connector of the present invention, when the optical connector is open, total reflection occurs at the end face of the optical fiber, so that the optical signal propagating through the optical fiber is prevented from being released to free space. Can be. Further, when the optical connector is not released, the two optical fibers can be optically coupled because the condition of total reflection disappears. Further, it is possible to block the scattered light emitted from the end face of the optical fiber.
  • the present invention can be applied not only to an optical connector but also to an optical transceiver, and achieves the same effect.
  • FIG. 1 is a configuration perspective view showing an optical connector according to a first embodiment of the present invention.
  • FIGS. 2A and 2B are diagrams showing the operation of the optical connector according to the first embodiment of the present invention.
  • FIG. 3 is a view for explaining the cover of the optical connector according to the first embodiment of the present invention.
  • FIG. 4 is a view showing a light shielding operation of the optical connector according to the first embodiment of the present invention.
  • FIG. 5 is a configuration perspective view showing an optical connector according to a second embodiment of the present invention.
  • 6A and 6B are diagrams showing the operation of the optical connector according to the second embodiment of the present invention.
  • FIG. 7 is a structural perspective view showing an optical transceiver according to a third embodiment of the present invention.
  • FIG. 8 is a diagram showing the operation of the optical transceiver according to the third embodiment of the present invention.
  • FIG. 9 is a configuration perspective view showing an optical transceiver according to a fourth embodiment of the present invention.
  • FIG. 10 is a diagram showing the operation of the optical transceiver according to the fourth embodiment of the present invention.
  • FIGS. 11A and 11B are end views illustrating an optical transceiver according to a fourth embodiment of the present invention.
  • FIG. 12 is an end view illustrating an optical connector according to a fifth embodiment of the present invention.
  • FIG. 13 is a diagram showing a conventional optical connector. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 shows a first embodiment of the present invention.
  • the optical connector 10 is attached to a cable of an optical fiber 2 and has an optical fiber end face 1.
  • the optical fiber terminal 1 is not perpendicular to the optical fiber optical axis but inclined.
  • the optical connector 10 includes a cover 30 having a structure that is obliquely pressed.
  • the end of the optical fiber 2 is partially cut by the cover 30.
  • the light-shielding part 31 forming a part of the cover 30 extends beyond the protruding end of the optical fiber end face 1.
  • the light-shielding portion 31 has a plate shape orthogonal to the major axis of the elliptical shape of the optical fiber end face 1 and a plane passing through the optical fiber optical axis.
  • the light-shielding portion 31 only needs to extend beyond the protruding end of the optical fiber end face 1 and may have a curved plate shape such as a tubular shape.
  • the optical fiber 2 is inserted and fixed to a ferrule (not shown) at the optical connector 10.
  • the end face of the ferrule is also polished obliquely like the optical fiber.
  • the cable portion of the optical cable 2 connected to the optical connector 10 is indicated by a thick black line in FIG. 1 for convenience, but is the same as the optical fiber 2 covered with a ferrule in the optical connector 10. Having a diameter of
  • FIG. 2A and 2B are diagrams showing the operation of the optical connector of FIG. Hikari Huai
  • the angle 0 of the normal 80 of the end face 1a to the optical axis of the optical fiber is set to, for example, 45 °.
  • FIG. 2A shows a state where the optical connector is open
  • FIG. 2B shows a state where the optical connector is not open.
  • the optical signal 4 propagating through the core 3a of the first optical fiber 2a is totally reflected at the optical fiber end face 1a, and becomes an optical signal 5 as the optical signal 2a. It dissipates to a state outside the waveguide condition.
  • the optical fibers 2a and 2b are inserted and fixed in a not-shown file.
  • the end face of the ferrule is also polished obliquely like the optical fiber.
  • FIG. 2B shows a state where the optical connector is properly connected. In this state, the end face 1a of the first optical fiber 2a and the end face 1b of the second optical fiber 2b are joined. In this state, the optical signal 4 transmits through the bonding surface 1 and propagates into the core 3b of the optical fiber 2b.
  • the optical connector 10 actually has the cover 30 as shown in FIG. 3A.
  • the angle of the oblique section 33 of 30 is such that the angle formed by the optical axis is smaller than the angle of the optical fiber end face 1a. be the angle theta 2, such the optical axis, the angle between the light off Aiba end face 1 a normal 8 0 and the optical axis of theta, yo Ri becomes rather large.
  • the light-shielding portion 31 is disposed at a position retracted from the front end of the light-shielding portion 31 and can easily block scattered light as described below with reference to FIG.
  • a pair of optical connectors 10a and 1Ob are connected.
  • the light-shielding part 31 of the cover 30 covers the rear part of the front end part 8 of the optical fiber end face 1, so that it is also possible to shield scattered light and further enhance safety.
  • the optical connector of this embodiment is different from a normal optical connector, and there is no distinction between female and female. Therefore, there is an advantage that the number of types of components can be reduced when constructing an optical fiber system, and production management and inventory management become easier.
  • ⁇ ⁇ is not limited to 45 °. It is sufficient that the inclined end faces 1a to 1b are totally reflected according to the refractive index of the optical fiber core and the numerical aperture of the optical fiber with respect to the optical signal propagating in the optical fiber. Further, the optical fiber end faces 1a and 1b are not limited to flat surfaces. Even if the end face 1a or 1b of the optical fiber is a curved surface, it suffices if the condition for total reflection is satisfied.
  • FIG. 5 shows an optical connector according to a second embodiment of the present invention.
  • This embodiment is characterized in that a cover 140 is provided to cover the entire optical fiber 2 having an inclined end face. If the optical fiber having the inclined end face is exposed, it is dangerous that the tip of the optical fiber gets stuck in the operator's hand.
  • the end face of the optical fiber is completely covered by the cover, so that the scattered light from the end of the optical fiber is shielded. In addition, it is possible to prevent the tip of the optical fiber from sticking into the operator's hand.
  • FIG. 6A and FIG. 6B are views showing a connection state of the optical connector of the second embodiment shown in FIG.
  • the optical connector 41 and the optical connector 42 have different cover dimensions, and are made such that the outer diameter of the optical connector 41 substantially matches the inner diameter of the optical connector 42 (see FIG. 6A).
  • Both optical connectors 41 and 42 have an external shape similar to a so-called receptacle (female connector).
  • Optical connector 41 is inserted inside optical connector 42 like a plug (female connector). (See Figure 6B).
  • FIG. 7 shows a third embodiment in which the present invention is applied to an optical transceiver.
  • FIG. 7 shows a bipolar optical connector 45 and a receive-type optical transformer 50.
  • the connector sections 46 and 47 of the dipole optical connector 45 are inserted into the receiving sections 51 and 52 of the optical transceiver, respectively.
  • FIG. 8 is an end view taken along the line X--X 'of FIG.
  • a semiconductor laser 55 mounted on a package with a lens is provided on an electronic circuit board 56. Light from the semiconductor laser is guided to an optical fiber 54 with a ferrule.
  • the optical fiber 54 with a ferrule has a normal flat end face on the semiconductor laser 55 side, and has an inclined end face on the optical connector 47 side.
  • the optical fiber 54 with a ferrule is closely connected to the optical fiber 49 with a ferrule provided on the optical connector 47 side.
  • the periphery of the optical fiber 54 with the beam of the light transformer 50 is covered by the cover 57, the light scattered from the inclined end face of the optical fiber 54 with the ferrule is provided.
  • the inclined end face of the optical fiber 54 with a ferrule can be prevented from being stuck in a human hand.
  • FIG. 9 shows a fourth embodiment of the present invention.
  • a prism 60 is used in place of the optical fiber 54 with a ferrule of the optical transceiver of the third embodiment shown in FIG.
  • the prism 60 has advantages in that it is easy to manufacture and inexpensive, and also easy to assemble.
  • Prism 6 ⁇ is the end on the optical connector 4 7 side The surface is inclined, and the semiconductor laser 55 side is flat. Since the prism 60 has no function of guiding light, unlike the optical fiber 54 with a ferrule, it is necessary to devise an optical design.
  • FIG. 10 shows a main part of the optical design of this embodiment.
  • the semiconductor laser package 62 includes a semiconductor laser 62 and a lens 63.
  • the light of the semiconductor laser 62 is optically arranged so as to focus on the junction between the prism 60 and the core of the optical fiber 49 with ferrule. In this way, even if the prism 60 having no waveguide function is used, the semiconductor laser and the optical fiber can be optically coupled while realizing the eye-safe function.
  • FIG. 11A and FIG. 11B show a fifth embodiment of the present invention.
  • Optical connectors 41a and 41b having the same external dimensions cannot be directly connected.
  • the connection can be made by using the adapter type optical connector 71 shown in FIG. 11A or the adapter type optical connector 72 shown in FIG. 11B.
  • the external dimensions of the adapter-type optical connector 71 shown in FIG. 11A are substantially the same as those of the optical connectors 41a and 41b.
  • the inner diameter of the adapter-type optical connector 72 shown in FIG. 11B roughly matches the outer dimensions of the optical connectors 41a to 41b.
  • the optical connectors 41a and 41b having the same external dimensions can be connected.
  • FIG. 12B shows a sixth embodiment of the present invention.
  • the inclination angle ⁇ of the optical fiber end face 1a is set to be larger than 45 °, and the inclination angle ⁇ of the optical fiber end face 1a is 45 If the angle is 0 °, as shown in FIG. 12A, the light 5a reflected on the end face of the optical fiber is reflected on the outer edge of the optical fiber, becomes light 4a, and is returned light.
  • the inclination angle ⁇ of the optical fiber end face la is set to be larger than 45 ° as shown in FIG. Can be prevented.
  • the angle of ⁇ may be greater than 45 °, but is preferably in the range of 48 ° to 60 °, and even 50. Between 55 ° and 55 ° is particularly desirable.
  • the present invention is not limited to the use of optical communication, and it goes without saying that the present invention can be applied to, for example, laser devices, laser devices for medical use, and the like.
  • the light traveling in the optical file is described by exemplifying the light traveling in parallel to the optical axis of the optical fiber.
  • it has a slight inclination.
  • the angle of the end face is set in consideration of such an inclination.
  • the end face should be tilted so that light propagating in the optical fiber is totally reflected at the end face.
  • the optical connector of the present invention when the optical connector is opened, total reflection occurs at the end face of the optical fiber, so that the optical signal propagating through the optical fiber is emitted into the space. Can be prevented. Further, when the optical connector is not open, the total reflection condition disappears, so that the two optical fibers can be optically coupled. Therefore, it is possible to prevent the laser light from being emitted into free space and causing damage to human eyes and the like when the optical connector is disconnected. In addition, scattered light emitted from the tip of the inclined end surface of the optical fiber can be blocked, and safety can be further improved. The same effect can be achieved by adopting the same configuration for the optical transceiver.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'angle υ entre la face terminale (1a) d'une fibre optique par rapport à l'axe optique est, par exemple, de 45°. Lorsqu'un connecteur optique est ouvert, un signal (4) optique propagé dans l'âme (3a) de la fibre (2a) optique est réfléchi en totalité depuis la face terminale (1a) et dispersé sous forme d'un signal (5) optique résultant des conditions de guide d'onde de la fibre (2a) optique. La lumière diffusée est interceptée par la partie (31) d'un boîtier (30) protégeant de la lumière. Le faisceau laser n'est pas émis vers l'espace libre lorsque le connecteur optique est déconnecté. Lorsque le connecteur optique est normalement connecté, la face terminale (1a) de la fibre (2b) optique est couplée à la face terminale (1b) d'une fibre (2b) optique et le signal (4) optique traverse la face (1) d'accouplement et se propage dans l'âme (3b) de la fibre (2b) optique.
PCT/JP2000/007825 1999-11-11 2000-11-08 Connecteur optique et emetteur-recepteur optique WO2001035140A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13015/01A AU1301501A (en) 1999-11-11 2000-11-08 Optical connector and optical transceiver

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP11/321495 1999-11-11
JP32149599 1999-11-11
JP2000-155738 2000-05-26
JP2000155738 2000-05-26

Publications (1)

Publication Number Publication Date
WO2001035140A1 true WO2001035140A1 (fr) 2001-05-17

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PCT/JP2000/007825 WO2001035140A1 (fr) 1999-11-11 2000-11-08 Connecteur optique et emetteur-recepteur optique

Country Status (3)

Country Link
CN (1) CN1390311A (fr)
AU (1) AU1301501A (fr)
WO (1) WO2001035140A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004008211A1 (fr) * 2002-07-16 2004-01-22 Tyco Electronics Raychem Nv Connecteur pour fibre optique
WO2004097486A1 (fr) * 2003-04-29 2004-11-11 Pirelli & C. S.P.A. Structure de couplage pour fibres optiques et procede d'elaboration
JP2007024944A (ja) * 2005-07-12 2007-02-01 Yonezawa Densen Kk 光ファイバ用レセプタクルおよびその組立方法
WO2010129536A2 (fr) * 2009-05-04 2010-11-11 University Of Delaware Système et procédé pour interconnexions optiques en espace libre
JP2016061847A (ja) * 2014-09-16 2016-04-25 住友電気工業株式会社 光コネクタフェルール
JP2016200765A (ja) * 2015-04-14 2016-12-01 矢崎総業株式会社 光コネクタの光結合構造
WO2018030246A1 (fr) * 2016-08-10 2018-02-15 ソニー株式会社 Connecteur optique, câble optique, et dispositif électronique
US10598866B2 (en) 2015-11-18 2020-03-24 Lumasense Technologies Holdings, Inc. Low reflection fiber-optic connector

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DE10335036A1 (de) * 2003-08-01 2005-03-03 Siemens Ag Modulares System
JP5109982B2 (ja) * 2008-10-09 2012-12-26 日立電線株式会社 ミラー付き光伝送体の製造方法
CN102928921B (zh) * 2012-10-16 2014-06-11 北京国科世纪激光技术有限公司 用于大功率耦合的光纤结构
US10326527B2 (en) * 2017-09-29 2019-06-18 Source Photonics (Chengdu) Co., Ltd. Methods of reducing or eliminating internal optical light reflections, increasing yield, reducing high-temperature transmission failures and/or improving OSA transmission performance and an improved optical transceiver implementing the same
CN114114562A (zh) * 2021-11-30 2022-03-01 广东安捷康光通科技有限公司 一种多模光纤阵列收光耦合装置及方法

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JPH0915453A (ja) * 1995-07-04 1997-01-17 Sumitomo Electric Ind Ltd 光コネクタ
JPH09145957A (ja) * 1995-11-20 1997-06-06 Fujitsu Ltd 光コネクタ
JPH10268164A (ja) * 1997-03-21 1998-10-09 Mitsubishi Electric Corp フォトダイオードモジュール
JPH10282341A (ja) * 1997-04-10 1998-10-23 Sumitomo Electric Ind Ltd 光ファイバ型固定減衰器

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Publication number Priority date Publication date Assignee Title
JPS619610A (ja) * 1984-06-25 1986-01-17 Nec Corp 光双方向通信用モジユ−ル
JPH0915453A (ja) * 1995-07-04 1997-01-17 Sumitomo Electric Ind Ltd 光コネクタ
JPH09145957A (ja) * 1995-11-20 1997-06-06 Fujitsu Ltd 光コネクタ
JPH10268164A (ja) * 1997-03-21 1998-10-09 Mitsubishi Electric Corp フォトダイオードモジュール
JPH10282341A (ja) * 1997-04-10 1998-10-23 Sumitomo Electric Ind Ltd 光ファイバ型固定減衰器

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004008211A1 (fr) * 2002-07-16 2004-01-22 Tyco Electronics Raychem Nv Connecteur pour fibre optique
WO2004097486A1 (fr) * 2003-04-29 2004-11-11 Pirelli & C. S.P.A. Structure de couplage pour fibres optiques et procede d'elaboration
US7645076B2 (en) 2003-04-29 2010-01-12 Pirelli & C. S.P.A. Coupling structure for optical fibres and process for making it
JP2007024944A (ja) * 2005-07-12 2007-02-01 Yonezawa Densen Kk 光ファイバ用レセプタクルおよびその組立方法
WO2010129536A2 (fr) * 2009-05-04 2010-11-11 University Of Delaware Système et procédé pour interconnexions optiques en espace libre
WO2010129536A3 (fr) * 2009-05-04 2011-02-24 University Of Delaware Système et procédé pour interconnexions optiques en espace libre
JP2016061847A (ja) * 2014-09-16 2016-04-25 住友電気工業株式会社 光コネクタフェルール
JP2016200765A (ja) * 2015-04-14 2016-12-01 矢崎総業株式会社 光コネクタの光結合構造
US10598866B2 (en) 2015-11-18 2020-03-24 Lumasense Technologies Holdings, Inc. Low reflection fiber-optic connector
WO2018030246A1 (fr) * 2016-08-10 2018-02-15 ソニー株式会社 Connecteur optique, câble optique, et dispositif électronique
JPWO2018030246A1 (ja) * 2016-08-10 2019-06-06 ソニー株式会社 光コネクタ、光ケーブルおよび電子機器
JP7070413B2 (ja) 2016-08-10 2022-05-18 ソニーグループ株式会社 光コネクタ、光ケーブルおよび電子機器

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CN1390311A (zh) 2003-01-08

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