WO2022138587A1 - 光接続構造 - Google Patents
光接続構造 Download PDFInfo
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- WO2022138587A1 WO2022138587A1 PCT/JP2021/047080 JP2021047080W WO2022138587A1 WO 2022138587 A1 WO2022138587 A1 WO 2022138587A1 JP 2021047080 W JP2021047080 W JP 2021047080W WO 2022138587 A1 WO2022138587 A1 WO 2022138587A1
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- Prior art keywords
- optical
- connection structure
- functional component
- suppressing member
- strain suppressing
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Images
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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/424—Mounting of the optical light guide
- G02B6/4243—Mounting of the optical light guide into a groove
-
- 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
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
- G02B6/3644—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the coupling means being through-holes or wall apertures
-
- 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
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
- G02B6/3652—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers
-
- 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
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3664—2D cross sectional arrangements of the fibres
- G02B6/3672—2D cross sectional arrangements of the fibres with fibres arranged in a regular matrix array
-
- 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
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4239—Adhesive bonding; Encapsulation with polymer material
-
- 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
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
-
- 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
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
-
- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
-
- 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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- 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
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
Definitions
- Patent Document 1 discloses a collimation array in which an optical fiber array and a lens array are arranged at intervals.
- the optical connection structure of the present disclosure includes a plurality of optical fibers, an optical functional component, a holding member, and a strain suppressing member.
- the plurality of optical fibers are arranged so that the end faces of the plurality of optical fibers are aligned in at least the first direction, and each extends along a second direction intersecting the first direction.
- the optical functional component has a first surface facing the end faces of the plurality of optical fibers, and is optically coupled to the end faces of the plurality of optical fibers on the first surface.
- the holding member is a second surface facing the first surface and directly or indirectly fixed to the first surface, a third surface facing opposite to the second surface, and a third surface to the third surface.
- the strain suppressing member has a fourth surface that faces the third surface and is directly or indirectly fixed to the third surface. In the second direction, the holding member is sandwiched between the optical functional component and the strain suppressing member.
- the coefficient of thermal expansion of the optical functional component and the strain suppressing member is larger than the coefficient of thermal expansion of the holding member.
- the coefficient of thermal expansion of the optical functional component and the strain suppressing member is smaller than the coefficient of thermal expansion of the holding member.
- FIG. 1 is a cross-sectional view of an optical connection structure according to an embodiment of the present disclosure.
- FIG. 2 is a perspective view of the optical connection structure.
- FIG. 3 is a cross-sectional view showing a configuration when the optical functional component includes only a lens array.
- FIG. 4 is a perspective view of the optical connection structure shown in FIG.
- FIG. 5 is a cross-sectional view showing the configuration of the optical connection structure 1 when the optical functional component includes a lens array and an optical element.
- FIG. 6 is a cross-sectional view showing the configuration of an optical connection structure when the optical functional component includes a lens array, an optical element, and a lens array.
- FIG. 1 is a cross-sectional view of an optical connection structure according to an embodiment of the present disclosure.
- FIG. 2 is a perspective view of the optical connection structure.
- FIG. 3 is a cross-sectional view showing a configuration when the optical functional component includes only a lens array.
- FIG. 4 is a perspective view of the optical connection
- FIG. 7 is a schematic view showing an optical functional component and a holding member when a strain suppressing member is not provided as a comparative example.
- FIG. 8 is a diagram showing how the holding member is distorted in the comparative example.
- FIG. 9 is a schematic view showing an optical functional component, a holding member, and a strain suppressing member according to an embodiment.
- FIG. 10 is a graph showing the results of simulating the degree of distortion of the holding member when the ambient temperature of the optical connection structure shown in FIG. 5 is raised from 25 ° C. to 110 ° C.
- FIG. 11 is a graph showing a simulation result when the strain suppressing member is not provided in the optical connection structure shown in FIG. 5 as a comparative example.
- FIG. 10 is a graph showing the results of simulating the degree of distortion of the holding member when the ambient temperature of the optical connection structure shown in FIG. 5 is raised from 25 ° C. to 110 ° C.
- FIG. 11 is a graph showing a simulation result when the strain suppressing
- FIG. 12 is a perspective view showing a model used in another simulation, and shows a model in the case where the strain suppressing member is not provided.
- FIG. 13 is a perspective view showing a model used in another simulation, showing a model in which a strain suppressing member is provided.
- FIG. 14 shows Young's modulus, coefficient of thermal expansion, and Poisson's ratio of the optical element (rotator), lens array, holding member, strain suppressing member, and adhesive of the model used in the simulation.
- FIG. 15 is a graph showing the relationship between the thickness of the strain suppressing member and the amount of warpage (maximum strain amount) as a result of the simulation.
- the holding member holding the end of the optical fiber in the optical fiber array and the optical functional component are adhered to each other. It is conceivable that they will be fixed to each other.
- the holding member has, for example, a plurality of holes each accommodating a plurality of optical fibers.
- the coefficient of thermal expansion of the holding member may be significantly different from the coefficient of thermal expansion of the optical functional component. In that case, bending strain occurs in the holding member due to the change in ambient temperature, and the direction of the optical axis of the plurality of optical fibers fluctuates.
- the optical coupling efficiency between the optical functional component fixed to the plurality of optical fibers and the plurality of optical fibers, or the optical coupling efficiency between the optical functional components coupled to the plurality of optical fibers via the space and the plurality of optical fibers Decreases.
- the optical connection structure includes a plurality of optical fibers, optical functional components, a holding member, and a strain suppressing member.
- the plurality of optical fibers are arranged so that the end faces of the plurality of optical fibers are aligned in at least the first direction, and each extends along a second direction intersecting the first direction.
- the optical functional component has a first surface facing the end faces of the plurality of optical fibers, and is optically coupled to the end faces of the plurality of optical fibers on the first surface.
- the holding member is a second surface facing the first surface and directly or indirectly fixed to the first surface, a third surface facing away from the second surface, and a third surface to the third surface. It has a plurality of fiber holding holes extending toward the second surface and accommodating a plurality of optical fibers, respectively.
- the strain suppressing member has a fourth surface that faces the third surface and is directly or indirectly fixed to the third surface. In the second direction, the holding member is sandwiched between the optical functional component and the strain suppressing member.
- the coefficient of thermal expansion of the optical functional component and the strain suppressing member is larger than the coefficient of thermal expansion of the holding member.
- the coefficient of thermal expansion of the optical functional component and the strain suppressing member is smaller than the coefficient of thermal expansion of the holding member.
- the strain suppressing member may hold a plurality of optical fibers. In this case, a plurality of optical fibers can be held more firmly.
- the strain suppressing member 30 is a substantially rectangular parallelepiped member for canceling the bending stress applied to the holding member 20.
- the strain suppressing member 30 of the present embodiment further has a function of holding N optical fiber ribbons 40 and N ⁇ M optical fibers 41.
- the holding member 20 is sandwiched between the optical functional component 10 and the strain suppressing member 30 in the direction D3.
- the strain suppressing member 30 has a surface 31 extending along the direction D1 and the direction D2 and intersecting the direction D3, and a surface 32 facing in the direction D3 opposite to the surface 31. In one example, the surface 31 is flat.
- the thickness of the strain suppressing member 30 in the direction D3, that is, the distance between the surfaces 31 and 32 is in the range of, for example, 1 mm to 5 mm.
- FIG. 5 is a cross-sectional view showing the configuration of the optical connection structure 1 when the optical functional component 10 includes the lens array 12 and the optical element 14.
- the lens array 12 is sandwiched between the holding member 20 and the optical element 14 in the direction D3.
- the optical element 14 is directly or indirectly fixed to the lens array 12.
- the optical element 14 has a surface 15 facing the surface 13 of the lens array 12 and a surface 16 facing the opposite surface 15.
- the surface 15 extends along directions D1 and D2 and intersects direction D3.
- the surface 15 is flat.
- the normal direction of the surface 15 may coincide with the direction D3 or may be slightly inclined with respect to the direction D3.
- FIG. 12 and 13 are perspective views showing a model used in another simulation.
- FIG. 12 shows a model when the strain suppressing member 30 is not provided
- FIG. 13 shows a model when the strain suppressing member 30 is provided.
- each cross section of the lens array 12, the optical element 14 (rotator), the holding member 20, and the strain suppressing member 30 of the optical connection structure 1 shown in FIG. 5 is formed into a 6 mm ⁇ 6 mm square in the direction D3. did.
- the thickness Z of the lens array 12, the optical element 14 (rotator), and the holding member 20 in the direction D3 is set to 1 mm, 6 mm, and 1 mm, respectively.
- the thickness of the strain suppressing member 30 in the direction D3 was changed within the range of 0.0 mm to 5.0 mm.
- the optical functional component 10 is indirectly fixed to the holding member 20 via the adhesive 51. Not limited to this form, the optical functional component 10 may be directly fixed to the holding member 20. Examples of the method of direct fixing include laser welding. Similarly, in the above embodiment, the holding member 20 is indirectly fixed to the strain suppressing member 30 via the adhesive 52. Not limited to this form, the holding member 20 may be directly fixed to the strain suppressing member 30. Examples of the method of direct fixing include laser welding.
- Optical connection structure 10 ... Optical functional component 11 ... First surface 12 ... Lens array 13, 15, 16, 18, 19, 31, 32 ... Surface 14 ... Optical element 17 ... Lens array 20 ... Holding member 21 ... First 2nd surface 22 ... 3rd surface 23, 33 ... Fiber holding hole 30 ... Strain suppressing member 34 ... Ribbon holding hole 35 ... Recess 40 ... Optical fiber ribbon 41 ... Optical fiber 42 ... End faces 51, 52, 53, 54 ... Adhesion Agents 131, 181 ... Lenses A1 to A5 ... Lines B1 to B6 ... Region D1 ... First direction D2 ... Direction D3 ... Second direction L ... Light
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Abstract
Description
複数の光ファイバを含む光ファイバアレイとレンズアレイ等の光機能部品とを光学的に結合する際には、光ファイバアレイにおいて光ファイバの端部を保持する保持部材と光機能部品とを、接着により相互に固着させることが考えられる。保持部材は、例えば、複数の光ファイバをそれぞれ収容する複数の孔を有する。しかしながら、保持部材の熱膨張係数が光機能部品の熱膨張係数と大きく異なる場合がある。その場合、周囲温度の変化によって保持部材に曲げ歪が生じ、複数の光ファイバの光軸の方向に変動が生じる。これにより、複数の光ファイバと固着した光機能部品と複数の光ファイバとの光結合効率、または、複数の光ファイバと空間を介して結合する光機能部品と複数の光ファイバとの光結合効率が低下する。
本開示の光接続構造によれば、温度変化による光ファイバと光機能部品との光結合効率の低下度合いを低減することができる。
最初に、本開示の実施形態を列記して説明する。一実施形態に係る光接続構造は、複数の光ファイバと、光機能部品と、保持部材と、歪抑制部材と、を備える。複数の光ファイバは、複数の光ファイバの端面が少なくとも第1の方向に並ぶように配置され、第1の方向と交差する第2の方向に沿ってそれぞれ延びる。光機能部品は、複数の光ファイバの端面と対向する第1の面を有し、第1の面において複数の光ファイバの端面と光学的に結合される。保持部材は、第1の面と対向し第1の面と直接又は間接的に固着する第2の面、第2の面とは反対を向く第3の面、及び、第3の面から第2の面に向けて延在し複数の光ファイバをそれぞれ収容する複数のファイバ保持孔を有する。歪抑制部材は、第3の面と対向し第3の面と直接又は間接的に固着する第4の面を有する。第2の方向において、保持部材は光機能部品と歪抑制部材との間に挟まれる。光機能部品及び歪抑制部材の熱膨張係数は、保持部材の熱膨張係数よりも大きい。又は、光機能部品及び歪抑制部材の熱膨張係数は、保持部材の熱膨張係数よりも小さい。
[本開示の実施形態の詳細]
[実施例]
10…光機能部品
11…第1の面
12…レンズアレイ
13,15,16,18,19,31,32…面
14…光学素子
17…レンズアレイ
20…保持部材
21…第2の面
22…第3の面
23,33…ファイバ保持孔
30…歪抑制部材
34…リボン保持孔
35…凹部
40…光ファイバリボン
41…光ファイバ
42…端面
51,52,53,54…接着剤
131,181…レンズ
A1~A5…線
B1~B6…領域
D1…第1の方向
D2…方向
D3…第2の方向
L…光
Claims (12)
- 端面が少なくとも第1の方向に並ぶように配置され、前記第1の方向と交差する第2の方向に沿ってそれぞれ延びる複数の光ファイバと、
前記複数の光ファイバの端面と対向する第1の面を有し、前記第1の面において前記複数の光ファイバの端面と光学的に結合される光機能部品と、
前記第1の面と対向し前記第1の面と直接又は間接的に固着する第2の面、前記第2の面とは反対を向く第3の面、及び、前記第3の面から前記第2の面に向けて延在し前記複数の光ファイバをそれぞれ収容する複数のファイバ保持孔を有する保持部材と、
前記第3の面と対向し前記第3の面と直接又は間接的に固着する第4の面を有し、前記第2の方向において前記光機能部品との間に前記保持部材を挟む歪抑制部材と、
を備え、
前記光機能部品及び前記歪抑制部材の熱膨張係数が前記保持部材の熱膨張係数よりも大きいか、又は、前記光機能部品及び前記歪抑制部材の熱膨張係数が前記保持部材の熱膨張係数よりも小さい、光接続構造。 - 前記第2の方向における前記歪抑制部材の厚さは1mm以上である、請求項1に記載の光接続構造。
- 前記歪抑制部材のヤング率Ebと前記光機能部品のヤング率Eaとの比(Eb/Ea)は0.192以上である、請求項2に記載の光接続構造。
- 前記歪抑制部材は前記複数の光ファイバを保持する、請求項1に記載の光接続構造。
- 前記複数の光ファイバが樹脂被覆により一括して保護されて成る光ファイバリボンを備え、
前記歪抑制部材は、前記複数の光ファイバをそれぞれ収容する複数のファイバ保持孔と、前記光ファイバリボンを収容するリボン保持孔とを有する、請求項4に記載の光接続構造。 - 前記歪抑制部材は、前記第2の方向において前記第4の面とは反対を向く第5の面を更に有し、
前記リボン保持孔は、前記第5の面に形成された凹部の底面から前記第2の方向に沿って前記第4の面に向けて延びており、
前記複数のファイバ保持孔は、前記リボン保持孔から前記第2の方向に沿って延在し、前記第4の面に達する、請求項5に記載の光接続構造。 - 前記光機能部品はレンズアレイを含み、前記レンズアレイは前記第1の面を含む、請求項1から請求項6のいずれか1項に記載の光接続構造。
- 前記レンズアレイはシリコンを主な構成材料とし、前記保持部材はガラスを主な構成材料とし、前記歪抑制部材は樹脂を主な構成材料とする、請求項7に記載の光接続構造。
- 前記光機能部品は前記レンズアレイとは別の光学素子を更に含み、
前記レンズアレイは、前記第2の方向において前記保持部材と前記光学素子との間に挟まれ、前記光学素子は前記レンズアレイと直接又は間接的に固着する、
請求項7または請求項8に記載の光接続構造。 - 前記光学素子は、ローテータ、光学フィルタ、光アイソレータ、及び光路変換部品のうち少なくとも1つである、請求項9に記載の光接続構造。
- 前記第2の面は、接着剤によって前記第1の面に接着されている、請求項1から請求項10のいずれか1項に記載の光接続構造。
- 前記第4の面は、接着剤によって前記第3の面に接着されている、請求項1から請求項11のいずれか1項に記載の光接続構造。
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JPH09152522A (ja) * | 1995-11-30 | 1997-06-10 | Sumitomo Electric Ind Ltd | 光ファイバ整列部品と光導波路基板との接続構造 |
JP2003232963A (ja) * | 2002-02-07 | 2003-08-22 | Furukawa Electric Co Ltd:The | レンズ交換型コリメータを備えた機能性光結合モジュール |
JP2004102108A (ja) * | 2002-09-12 | 2004-04-02 | Fujitsu Ltd | コリメータアレイ及び該コリメータアレイを備えた光デバイス |
US20040184729A1 (en) * | 2003-03-19 | 2004-09-23 | Chromux Technologies, Inc. | Multiple channel optical assembly and method of manufacture |
JP2017072653A (ja) * | 2015-10-05 | 2017-04-13 | 住友電気工業株式会社 | 光接続部品、光処理装置、光接続部品を作製する方法、ガイド部材生産物を作製する方法 |
JP2019144434A (ja) * | 2018-02-21 | 2019-08-29 | 富士通株式会社 | 保持部材および光モジュール |
JP2019533836A (ja) * | 2016-11-08 | 2019-11-21 | モレックス エルエルシー | レンズ素子を有するマルチファイバフェルール |
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- 2021-12-20 DE DE112021006590.4T patent/DE112021006590T5/de active Pending
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JPH0990333A (ja) * | 1995-09-26 | 1997-04-04 | Fuji Photo Film Co Ltd | 液晶表示装置 |
JPH09152522A (ja) * | 1995-11-30 | 1997-06-10 | Sumitomo Electric Ind Ltd | 光ファイバ整列部品と光導波路基板との接続構造 |
JP2003232963A (ja) * | 2002-02-07 | 2003-08-22 | Furukawa Electric Co Ltd:The | レンズ交換型コリメータを備えた機能性光結合モジュール |
JP2004102108A (ja) * | 2002-09-12 | 2004-04-02 | Fujitsu Ltd | コリメータアレイ及び該コリメータアレイを備えた光デバイス |
US20040184729A1 (en) * | 2003-03-19 | 2004-09-23 | Chromux Technologies, Inc. | Multiple channel optical assembly and method of manufacture |
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JP2019533836A (ja) * | 2016-11-08 | 2019-11-21 | モレックス エルエルシー | レンズ素子を有するマルチファイバフェルール |
JP2019144434A (ja) * | 2018-02-21 | 2019-08-29 | 富士通株式会社 | 保持部材および光モジュール |
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CN116529646A (zh) | 2023-08-01 |
DE112021006590T5 (de) | 2023-10-05 |
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