CN108459377B - Optical waveguide assembly - Google Patents
Optical waveguide assembly Download PDFInfo
- Publication number
- CN108459377B CN108459377B CN201710090801.5A CN201710090801A CN108459377B CN 108459377 B CN108459377 B CN 108459377B CN 201710090801 A CN201710090801 A CN 201710090801A CN 108459377 B CN108459377 B CN 108459377B
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- Prior art keywords
- optical waveguide
- component
- assembling
- optical fiber
- transmission layer
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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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides an optical waveguide component, which comprises an optical waveguide printed board, a first assembling component and a second assembling component, wherein the optical waveguide printed board comprises a substrate layer and an optical waveguide transmission layer embedded in the substrate layer, and one end of the optical waveguide transmission layer extends outwards from the substrate layer and is fixedly connected with the first assembling component; the first surface of the second assembling component is inwards sunken to form a first accommodating groove for accommodating the first assembling component; an elastic component is arranged in the first accommodating groove and used for elastically abutting against the first assembling component, so that when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is attached to the optical fiber end face of the optical fiber component. Because the elastic component is arranged to elastically abut against the first assembling component, when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is closely attached to the optical fiber end face of the optical fiber component, and therefore the butt joint difficulty of the embedded optical waveguide and the optical fiber is reduced.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to an optical waveguide component.
Background
At present, the continuous increase of the demand for high interconnection bandwidth in the field of communication systems has led to the continuous development of optical interconnection technology. With the continuous improvement of data flow, the data processing capacity of the equipment is larger and larger, and the single line rate is continuously improved. With the decreasing cost of optical interconnects, optical interconnects are gradually evolving from rack-to-rack interconnects to single-board-to-single-board interconnect structures, even applied to chip-to-chip interconnects.
In recent years, the technology of embedded waveguide Printed Circuit Board (PCB) interconnection based on the optical waveguide theory has been developed gradually, and has been widely studied at home and abroad. Compared with the electrical interconnection technology, the embedded optical waveguide printed board has the advantages of supporting high-speed data transmission, being green and energy-saving, low in cost and high in density and the like. Currently, the hot research on the embedded waveguide printed board mainly focuses on the improvement of transmission performance and the connection technology of the embedded optical waveguide to the optical fiber. In the prior art, the butt joint technology of the embedded optical waveguide and the optical fiber is complex in structure and inconvenient to operate.
Disclosure of Invention
The embodiment of the invention provides an optical waveguide component, which aims to solve the problem that the butt joint difficulty of an embedded optical waveguide and an optical fiber is high.
In a first aspect, an embodiment of the present invention provides an optical waveguide assembly, characterized by including an optical waveguide printed board, a first mounting part, and a second mounting part, wherein,
the optical waveguide printed board comprises a substrate layer and an optical waveguide transmission layer embedded in the substrate layer, wherein one end of the optical waveguide transmission layer extends outwards from the substrate layer and is fixedly connected with the first assembling part;
the first surface of the second assembling component is inwards sunken to form a first accommodating groove for accommodating the first assembling component; an elastic component is arranged in the first accommodating groove and used for elastically abutting against the first assembling component, so that when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is attached to the optical fiber end face of the optical fiber component.
In this way, in the embodiment of the present invention, an optical waveguide component is provided, where the optical waveguide component includes an optical waveguide printed board, a first mounting component, and a second mounting component, where the optical waveguide printed board includes a substrate layer and an optical waveguide transmission layer embedded in the substrate layer, and one end of the optical waveguide transmission layer extends outward from the substrate layer and is fixedly connected to the first mounting component; the first surface of the second assembling component is inwards sunken to form a first accommodating groove for accommodating the first assembling component; an elastic component is arranged in the first accommodating groove and used for elastically abutting against the first assembling component, so that when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is attached to the optical fiber end face of the optical fiber component. Due to the fact that the elastic component is arranged to be elastically abutted against the first assembling component, when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is closely attached to the end face of the optical fiber component, and therefore the butt joint difficulty of the embedded optical waveguide and the optical fiber is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a structural view of an optical waveguide assembly provided in a first embodiment of the present invention;
fig. 2 is an exploded view of an optical waveguide assembly provided in a first embodiment of the present invention;
fig. 3 is a structural diagram of an optical waveguide assembly provided by a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides an optical waveguide assembly including an optical waveguide printed board 11, a first mounting part 12, and a second mounting part 13, wherein,
the optical waveguide printed board 11 comprises a substrate layer 111 and an optical waveguide transmission layer 112 embedded in the substrate layer 111, wherein one end of the optical waveguide transmission layer 112 extends outwards from the substrate layer 111 and is fixedly connected with the first assembling part 12;
the first surface 131 of the second fitting part 13 is recessed inwardly to form a first receiving groove 132 for receiving the first fitting part; an elastic component 133 is disposed in the first receiving groove 132, and the elastic component 133 is used for elastically abutting against the first assembling component 12, so that when the first assembling component 12 is attached to the optical fiber component 20, the end face of the optical waveguide transmission layer 112 is attached to the optical fiber end face of the optical fiber component 20.
In this embodiment, the substrate layer 111 may be a printed circuit board substrate (e.g., FR4), or may be a metal layer (e.g., copper, gold, etc.). The optical waveguide transmission layer is a laminated structure, and the optical waveguide transmission layer 112 includes a multi-layered laminated structure of a clad layer located at the outermost side, and a waveguide coating layer and a waveguide core layer located at the middle. The waveguide coating layer and the waveguide core layer are made of waveguide materials with different optical refractive indexes, so that optical signal energy is concentrated in the waveguide core layer to be transmitted, and transmission of communication optical signals is achieved. The clad layer may be made of a soft resin material or the like.
Specifically, in this embodiment, the substrate layer 111 may be an FR4 epoxy fiberglass cloth substrate, the cladding layer of the optical waveguide transmission layer 112 may be a flexible material such as PP, and the waveguide coating layer and the waveguide core layer are both made of a flexible polymer waveguide material, so that the optical waveguide transmission layer 112 can be bent after extending to the outer side of the substrate layer 111, for example, the bending diameter can be 6cm to 10 cm. Specifically, the extended portion of the optical waveguide transmission layer 112 may have a long bar shape.
The shapes of the first assembling member 12 and the second assembling member 13 may be set according to actual needs, for example, in the present embodiment, they may be set to be rectangular structures. The first assembling member 12 is disposed in the first receiving groove 132 and can slide in the first receiving groove 132. Specifically, when the optical waveguide assembly is not mounted with the optical fiber component 20, the first fitting member 12 is in the first position; when the optical waveguide component is not mounted on the optical fiber component 20, the optical fiber component 20 will be attached to the first mounting component 12, and the first mounting component 12 is driven to move into the first receiving groove 132 to the second position, at this time, the elastic component will elastically deform, and under the restoring force of the elastic deformation, the first mounting component 12 will be pushed to be closely attached to the optical fiber component 20, so that the end surface of the optical waveguide transmission layer 112 is closely attached to the optical fiber end surface of the optical fiber component 20, and the embedded optical waveguide is butted to the optical fiber.
In this embodiment, the end face of the optical waveguide transmission layer 112 is substantially flush with the end face of the first mounting component 12, and the end face of the optical fiber component 20 is substantially flush with the end face of the optical fiber component 20, so that the end face of the optical waveguide transmission layer 112 can be closely attached to the end face of the optical fiber component 20 when the first mounting component 12 is attached to the optical fiber component 20.
Thus, in the embodiment of the present invention, an optical waveguide component is provided, which includes an optical waveguide printed board 11, a first mounting component 12, and a second mounting component 13, where the optical waveguide printed board 11 includes a substrate layer 111 and an optical waveguide transmission layer 112 embedded in the substrate layer 111, and one end of the optical waveguide transmission layer 112 extends outward from the substrate layer 111 and is fixedly connected to the first mounting component 12; the first surface 131 of the second fitting part 13 is recessed inwardly to form a first receiving groove 132 for receiving the first fitting part 12; an elastic component 133 is disposed in the first receiving groove 132, and the elastic component 133 is used for elastically abutting against the first assembling component 12, so that when the first assembling component 12 is attached to the optical fiber component 20, the end face of the optical waveguide transmission layer 112 is attached to the optical fiber end face of the optical fiber component 20. Because the elastic component 133 is elastically abutted against the first assembling component 12, when the first assembling component 12 is attached to the optical fiber component 20, the end face of the optical waveguide transmission layer 112 is closely attached to the optical fiber end face of the optical fiber component 20, and therefore the difficulty in butt joint of the embedded optical waveguide and the optical fiber is reduced.
Optionally, a second receiving groove 134 is formed on a first inner wall of the first receiving groove 132 away from the first surface 131, through which the optical waveguide transmission layer 112 passes through the second assembling member 13.
In this embodiment, the second receiving groove 134 is communicated with the first receiving groove 132, and the second receiving groove 134 extends to a second surface of the second assembling member 13 opposite to the first surface 131.
Specifically, the elastic member 133 may be installed according to actual needs, for example, in an embodiment, one end of the elastic member 133 may be directly and fixedly connected to the second assembling member 13, and the other end of the elastic member may be directly and fixedly connected to the first assembling member 12, in this embodiment, the first inner wall is provided with a receiving hole 135 for receiving the elastic member 133, and the receiving hole is a blind hole. One end of the elastic member 133 may be received in the receiving hole 135, and the other end may abut against the first fitting member 12.
Optionally, in this embodiment, the elastic component 133 is a spring, and in other embodiments, an elastic sheet may be further provided. The number of the springs can be set according to actual needs, for example, the springs can be set to be two and symmetrically arranged by taking the middle point of the first inner wall as a center.
Further, in order to improve the stability of the first assembling member 12 sliding in the first receiving groove 132, in this embodiment, a limiting portion 136 is disposed on a second inner wall of the first receiving groove 132 adjacent to the first surface 131, a matching portion (not shown) adapted to the limiting portion 136 is disposed on the first assembling member 12, and the limiting portion 136 and the matching portion are matched with each other to limit the sliding direction of the first assembling member 12 relative to the second assembling member 13.
The structure of the limiting portion 136 may be set according to actual needs, and the adapting portion corresponds to the structure of the limiting portion 136, for example, the limiting portion 136 is a sliding block, and the adapting portion is a sliding groove; or, the limiting part 136 is a sliding groove, and the adapting part is a sliding block.
In this embodiment, when the position-limiting portion 136 is a sliding slot, a gap is formed between the sliding slot and the first surface; when the adapting part is a sliding groove, a gap is formed between the sliding groove and the end face, far away from the first surface, of the first assembling component.
By providing the slide groove in this manner, the first fitting part 12 can be prevented from being separated from the first receiving groove 132, thereby improving the stability of the product.
Specifically, the assembly manner of the optical waveguide transmission layer 112, the first assembling component 12 and the second assembling component 13 may be set according to actual needs, for example, the first assembling component 12 may be integrally formed, and a receiving cavity is formed in the middle portion for receiving the optical waveguide transmission layer 112. Here, the optical waveguide transmission layer 112 may be inserted into the first fitting member 12 such that the end face of the optical waveguide transmission layer 112 is aligned with one end face of the first fitting member 12, and then subjected to a curing process by ultraviolet glue.
The second assembling member 13 may include an upper half member and a lower half member which are separately provided, the above-mentioned limiting portion 136 may be provided on the lower half member, and the rest portions may be symmetrically provided. When mounting, the spring is first installed in the housing hole 135, then the first mounting member 12 with the optical waveguide transmission layer 112 installed is installed in the first housing groove 132, the optical waveguide transmission layer 112 is installed in the second housing groove 134, the optical waveguide transmission layer 112 can slide freely in the second housing groove 134, and finally, the upper half part and the lower half part are aligned and ultraviolet glue dispensing and curing treatment is performed.
It should be understood that, in the present embodiment, in order to improve the adhesion between the optical waveguide transmission layer 112 and the optical fiber component 20, when the first assembling member 12 is not adhered to the optical fiber component 20, the first assembling member 12 may be disposed to protrude from the second assembling member 13.
Further, in order to improve the alignment accuracy between the end face of the optical waveguide transmission layer 112 and the end face of the optical fiber component 20, in this embodiment, the first mounting component 12 or the second mounting component 13 is provided with a first guide structure 30, and the first guide structure 30 is adapted to the second guide structure 21 provided on the optical fiber component 20.
In this embodiment, the first guiding structure 30 may be disposed on the first assembling component 12 or on the second assembling component 13, wherein the first guiding structure 30 may be disposed as a guiding column or a guiding hole, and correspondingly, the second guiding structure 21 is a guiding hole or a guiding column. The guide post can be a metal cylinder, and the guide hole can be a blind hole with an inner diameter slightly larger than the outer diameter of the guide cylinder.
The number of the first guiding structures 30 may be set according to actual needs, for example, two or more. In this embodiment, the first guide structure 30 and the second guide structure 21 are matched with each other, so that the installation of the optical waveguide transmission layer 112 and the optical fiber component 20 can be pre-positioned, the butt joint of the optical waveguide transmission layer 112 and the optical fiber component 20 can be facilitated, and the alignment accuracy of the butt joint of the optical waveguide transmission layer 112 and the optical fiber component 20 is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An optical waveguide module comprising an optical waveguide printed board, a first mounting member and a second mounting member, wherein,
the optical waveguide printed board comprises a substrate layer and an optical waveguide transmission layer embedded in the substrate layer, wherein one end of the optical waveguide transmission layer extends outwards from the substrate layer and is fixedly connected with the first assembling part;
the first surface of the second assembling component is inwards sunken to form a first accommodating groove for accommodating the first assembling component; an elastic component is arranged in the first accommodating groove and used for elastically abutting against the first assembling component, so that when the first assembling component is attached to the optical fiber component, the end face of the optical waveguide transmission layer is attached to the optical fiber end face of the optical fiber component;
the first fitting member is slidably disposed in the first receiving groove.
2. The optical waveguide assembly of claim 1, wherein a first inner wall of the first receiving cavity away from the first surface is formed with a second receiving cavity for the optical waveguide transmission layer to pass through the second mounting member.
3. The optical waveguide assembly of claim 2, wherein the first inner wall has a receiving hole for receiving the elastic member, and the receiving hole is a blind hole.
4. The optical waveguide assembly of claim 1, wherein a position-limiting portion is disposed on a second inner wall of the first receiving groove adjacent to the first surface, a mating portion adapted to the position-limiting portion is disposed on the first assembling member, and the position-limiting portion and the mating portion are mated with each other to limit a sliding direction of the first assembling member relative to the second assembling member.
5. The optical waveguide assembly of claim 4, wherein the retaining portion is a slider and the mating portion is a runner; or, the limiting part is a sliding groove, and the adapting part is a sliding block.
6. The optical waveguide assembly of claim 5, wherein when the position-limiting portion is a sliding groove, a gap is formed between the sliding groove and the first surface; when the adapting part is a sliding groove, a gap is formed between the sliding groove and the end face, far away from the first surface, of the first assembling component.
7. The optical waveguide assembly of claim 1, wherein the first fitting component is disposed to protrude from the second fitting component when the first fitting component is not attached to the optical fiber component.
8. The optical waveguide assembly of claim 1, wherein the first or second mounting component has a first guide structure thereon that mates with a second guide structure provided on the fiber optic component.
9. The optical waveguide assembly of claim 8, wherein the first guiding structure is a guiding post or a guiding hole.
10. The optical waveguide assembly of claim 1, wherein the resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090801.5A CN108459377B (en) | 2017-02-20 | 2017-02-20 | Optical waveguide assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090801.5A CN108459377B (en) | 2017-02-20 | 2017-02-20 | Optical waveguide assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108459377A CN108459377A (en) | 2018-08-28 |
| CN108459377B true CN108459377B (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710090801.5A Active CN108459377B (en) | 2017-02-20 | 2017-02-20 | Optical waveguide assembly |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH692827A5 (en) * | 1998-02-17 | 2002-11-15 | Reichle & De Massari Fa | Kontaktsteckeranordung for optical waveguides. |
| WO2000048030A1 (en) * | 1999-02-12 | 2000-08-17 | Huber & Suhner Ag | Optical connector |
| CN201637891U (en) * | 2010-02-04 | 2010-11-17 | 富士康(昆山)电脑接插件有限公司 | Optical circuit board |
| CN101950054B (en) * | 2010-09-10 | 2012-02-29 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN103185928B (en) * | 2011-12-29 | 2016-04-20 | 鸿富锦精密工业（深圳）有限公司 | Optical-fiber coupling connector and public connector thereof and female connectors |
| CN103424814B (en) * | 2012-05-17 | 2016-07-06 | 鸿富锦精密工业（深圳）有限公司 | Fiber optic connector assembly |
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2017
- 2017-02-20 CN CN201710090801.5A patent/CN108459377B/en active Active
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| CN108459377A (en) | 2018-08-28 |
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