CN111007591B - Optical fiber array with high reliability - Google Patents
Optical fiber array with high reliability Download PDFInfo
- Publication number
- CN111007591B CN111007591B CN201911350127.5A CN201911350127A CN111007591B CN 111007591 B CN111007591 B CN 111007591B CN 201911350127 A CN201911350127 A CN 201911350127A CN 111007591 B CN111007591 B CN 111007591B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- glue
- glue layer
- optical fiber
- substrate
- 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.)
- Active
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
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
- G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
- G02B6/08—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images with fibre bundle in form of plate
Abstract
The invention discloses an optical fiber array with high reliability, which comprises a cover plate, a substrate and a preset number of optical fibers, wherein both the lower surface of the cover plate and the upper surface of the substrate are frosted surfaces, and a first glue layer is filled between the frosted surface of the cover plate and the frosted surface of the substrate; the cover plate is provided with a plurality of first U-shaped grooves with preset quantity, the base plate is provided with a plurality of second U-shaped grooves matched with the first U-shaped grooves on the cover plate, and optical fibers with preset quantity are fixed through the first U-shaped grooves and the second U-shaped grooves matched with the first U-shaped grooves respectively. According to the invention, the cover plate and the fixing groove on the substrate are set to be of a U-shaped groove structure from the existing V-shaped groove, so that the strength and reliability of the optical fiber array are improved, and meanwhile, the lower surface of the cover plate and the upper surface of the substrate are both frosted surfaces, so that the adhesive force of the first glue layer on the frosted surface is stronger, the bonding strength of the thermosetting glue is improved, and the bonding reliability of the cover plate and the substrate is more stable.
Description
Technical Field
The invention relates to the technical field of optical fiber transmission, in particular to an optical fiber array with high reliability.
Background
At present, with the rapid development of communication technology and the rapid increase of practical application, the research of large-capacity optical fiber communication systems has great application value. As the demand for long distance information transmission becomes greater, the use of optical fibers becomes more and more widespread, and the use demand of optical fiber arrays also becomes greater. The optical splitter chips and the optical fiber arrays of different channels are used, so that the corresponding 1: 4. 1: 8. 1: 16. 1: 32, etc. with different branch ratios. For Optical transport network devices, the use of a Reconfigurable Optical Add/Drop Multiplexer (ROADM) among others can flexibly expand the network capacity and reduce the operation cost. WSS is a technology of choice for current RODAM. For a 1 × N WSS, 1 refers to a Common (COM) port and N represents a branch port. The WSS operates when a set of Wavelength Division Multiplexing (WDM) signals enters from a COM port, the set of WDM signals are separated by optical Wavelength and then each Wavelength is routed to one of N branch ports according to system requirements. Conversely, optical signals can be received as inputs from the N branch ports and transmitted as outputs from the COM port.
At present, optical fibers in an optical fiber array are fixed through a cover plate and a basic V-shaped groove, although the V-shaped groove is simple, economical and convenient in the production and processing (mainly mold opening) processes, the V-shaped groove has weak positioning and fixing effects on the optical fibers, and particularly under the condition that glue bubbles do not completely penetrate the V-shaped groove, an optical fiber ribbon is easy to separate under the condition of strong pulling; the existing cover plate and the existing base plate are adhered by epoxy resin or acrylic resin glue, and the volume of the cover plate and the base plate is reduced by 5% -20% after being cured compared with that before being cured, so that the adhesive strength is reduced, and the reliability is reduced.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme:
an optical fiber array with high reliability comprises a cover plate, a base plate and a preset number of optical fibers, wherein both the lower surface of the cover plate and the upper surface of the base plate are frosted surfaces, and a first glue layer is filled between the frosted surfaces of the cover plate and the base plate; the cover plate is provided with a plurality of first U-shaped grooves with preset quantity, the base plate is provided with a plurality of second U-shaped grooves matched with the first U-shaped grooves on the cover plate, and optical fibers with preset quantity are fixed through the first U-shaped grooves and the second U-shaped grooves matched with the first U-shaped grooves respectively.
Preferably, the cover plate and the substrate are made of kovar alloy, and the coefficient of thermal expansion of the kovar alloy is 48 × 10-7～50×10-7。
Preferably, the optical fiber section inside each first U-shaped groove and the matching second U-shaped groove is a fiber section with a coating removed.
Preferably, in the embodiment of the present invention, the inner surfaces of the first U-shaped groove and the second U-shaped groove matched therewith are provided with frosted surfaces, and a second glue layer is filled in a gap between the first U-shaped groove and the second U-shaped groove matched therewith.
Preferably, the first glue layer and the second glue layer are thermosetting glue, the viscosity of the thermosetting glue at 25 ℃ is 1500-2000 cps, and the hardness of the cured glue is 82 Shore D.
Preferably, the substrate includes a connection step and an arc-shaped substrate disposed at a front end of the connection step, and the connection step is coated with a third glue layer.
Preferably, the third glue layer is ultraviolet curing glue, the viscosity of the ultraviolet curing glue at 25 ℃ is 4800-5300 cps, and the hardness after curing is Shore 50D.
Preferably, the arc-shaped substrate is coated with a fourth glue layer, the fourth glue layer is silica gel glue, the viscosity of the silica gel glue at 25 ℃ is 45000cps, and the hardness of the silica gel glue after curing is 27 Shore A.
The invention has the following beneficial effects:
(1) according to the optical fiber array with high reliability, the fixing grooves in the cover plate and the base plate are set to be of the U-shaped groove structure from the existing V-shaped grooves, so that the strength and the stability of optical fibers (optical fiber ribbons) in the optical fiber array are improved by 20-25%, and meanwhile, the strength can be further improved by 5-8% under the condition that glue bubbles do not completely penetrate into the U-shaped groove.
(2) According to the optical fiber array with high reliability, the upper surface of the cover plate and the lower surface of the substrate are frosted surfaces, so that the adhesive force of the first glue layer on the frosted surface is stronger, the bonding strength of the thermosetting glue is improved, and the bonding reliability of the cover plate and the substrate is more stable.
(3) According to the optical fiber array with high reliability, the inner surfaces of the U-shaped grooves (the first U-shaped groove and the second U-shaped groove) are set to be frosted surfaces, so that the fixing effect of the thermosetting glue in the U-shaped grooves is further enhanced.
(4) According to the optical fiber array with high reliability, the base plate 1 and the cover plate 3 are made of the kovar alloy to position and fix the optical fiber 3, so that the optical fiber array cannot be broken or broken in the production process, and meanwhile, the thermal expansion of the kovar alloy is relatively small.
(5) According to the optical fiber array with high reliability, the third glue layer is coated on the connecting step, when the temperature change speed of the optical fiber array in the use process is high, the third glue layer can prevent the first glue layer and the second glue layer from expanding and flowing on the pasting surface, and the base plate and the cover plate can be effectively prevented from being peeled off due to the reduction of the viscosity of the first glue layer and the second glue layer.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an optical fiber array with high reliability according to the present invention;
FIG. 2 is a left side view of a fiber array with high reliability according to the present invention;
fig. 3 is a front view of an optical fiber array having high reliability according to the present invention.
The reference numerals shown in the figures are as follows:
1. a cover plate; 2. a substrate; 2.1, connecting steps; 2.2, arc-shaped substrates; 3. an optical fiber; 4. a first U-shaped groove; 5. a second U-shaped groove; 6. sanding surface; 7. a first glue layer; 8. a second glue layer; 9. a third glue layer, 10, a fourth glue layer.
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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, an optical fiber array with high reliability according to an embodiment of the present invention specifically includes a cover plate 1, a substrate 2, and a predetermined number of optical fibers 3, where the cover plate 1 is provided with a predetermined number of first U-shaped grooves 4, the substrate 2 is provided with a second U-shaped groove 5 matched with the first U-shaped grooves 4 on the cover plate 1, and each predetermined optical fiber 3 is fixed by the first U-shaped groove 4 on the cover plate 1 and the second U-shaped groove 5 matched with the first U-shaped groove 4 on the substrate 2, respectively. The strength and stability of optical fibers (optical fiber ribbons) in the optical fiber array are improved by 20-25% through the design of the U-shaped grooves (the first U-shaped groove 4 and the second U-shaped groove 5), and meanwhile, the strength can be further improved by 5-8% under the condition that glue bubbles do not completely penetrate through the U-shaped grooves (the first U-shaped groove 4 and the second U-shaped groove 5). Specifically, the two-point fixing mode is adopted by the V-shaped groove to position and fix the cover plate 1 and the optical fiber 3 in the substrate 2, and the three-point fixing mode is adopted by the U-shaped groove to position and fix the optical fiber 3, so that the strength and reliability of three-point positioning are better than those of two-point positioning obviously.
In this embodiment, the cover plate 1 and the substrate 2 are made of kovar alloy, wherein the thermal expansion coefficient of the kovar alloy is 48 × 10-7～50×10-7And the optical fiber section without the coating layer is made of quartz glass. Because the production processes of the optical fiber array or the product using the optical fiber array are multiple, the glass (in the traditional optical fiber array, the cover plate 1 and the substrate 2 adopt quartz glass to position the optical fiber 3) which is easy to position in the production process is damaged, broken and even broken, in the embodiment, the cover plate 1 and the substrate 2 are made of kovar alloy to position the optical fiber 3, so that the optical fiber array cannot be broken and broken in the production process, and meanwhile, the thermal expansion of the kovar alloy is relatively small.
Referring to fig. 1 to 2, the lower surface of the cover plate 1 and the upper surface of the base plate 2 are frosted surfaces 6, a first glue layer is filled between the frosted surfaces of the cover plate 2 and the base plate, and through the frosted surfaces 6, the adhesive force of the first glue layer 7 on the frosted surfaces 6 is stronger, and the bonding strength is improved, and the reliability of bonding the cover plate 1 and the base plate 2 is more stable. In this embodiment, the first glue layer 7 and the second glue layer 8 are both thermosetting glue, the viscosity of the thermosetting glue at 25 ℃ is 1500-2000 cps, and the hardness of the cured glue is shore 82D, so that the thermosetting glue has good fluidity and can be cured at the same time to achieve a strong curing effect. Further optimizing this embodiment, the surface of first U type groove 4 and the second U type groove 5 that matches with it is dull polish face, and the adhesion force of the second glue layer 8 in the reinforcing U type groove (first U type groove 4 and first U type groove 4) is stronger, and is better to the solidification effect of optic fibre 3, especially has the effect when thermosetting glue has the bubble in the curing process under the condition.
Referring to fig. 1 to 3, in the present embodiment, the substrate 2 includes a connection step 2.1 and an arc-shaped substrate 2.2 disposed at a front end of the connection step 2.1, a third glue layer 9 is coated on the connection step 2.1, and a fourth glue layer 10 is coated on the arc-shaped substrate 2.2. Through evenly coating on the edge of connecting step 2.1 has third glue layer 9, when the change rate of optical fiber array temperature in the use is very fast, because third glue layer 9 can prevent first glue layer 7 and second glue layer 8 from expanding and flowing on base plate 1, can effectually prevent to cause base plate 2 and apron 1 to peel off because the viscosity of first glue layer 7 and second glue layer 8 descends.
In this embodiment, the third glue layer 9 is an ultraviolet curing glue, the viscosity of the ultraviolet curing glue at 25 ℃ is 4800-5300 cps, and the hardness after curing is 50 shore D. The fourth glue layer 10 is silica gel glue, the viscosity of the silica gel glue is 45000cps at 25 ℃, and the hardness after curing is shore 27A. It can be found that the viscosity of the third glue layer 9 is much higher than that of the first glue layer 7 and the second glue layer 8, which can effectively prevent the first glue layer 7 and the second glue layer 8 from flowing, the hardness of the third glue layer 9 after being cured is lower than that of the first glue layer 7 and the second glue layer 8, which can ensure the flexibility of the connection step 2.1, the fourth glue layer 10 adopts silica gel glue, which can be well matched with the flexibility of the third glue layer 9, and the light transmission is good.
In this embodiment, after the apron 1, the base plate 2, 3 equipment of optic fibre are accomplished, earlier coating third glue layer 9, and solidify with the ultraviolet curing lamp, pour into the gap between apron 1 and base plate 2 and in the U type groove (first U type groove 4 and second U type groove 5) respectively with first glue layer 7 and second glue layer 8 again, when first glue layer 7 and second glue layer 8 filled up the gap between base plate 2 and the apron 1 and U type groove clearance, solidify through heating equipment, at last again with fourth glue layer 10 full arc base plate 2.2, after placing more than 30 minutes at normal temperature, can accomplish the packing and the coating of glue.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An optical fiber array with high reliability, comprising a cover plate (1), a substrate (2) and a preset number of optical fibers (3), characterized in that: both the lower surface of the cover plate (1) and the upper surface of the base plate (2) are frosted surfaces (6), and a first glue layer (7) is filled between the frosted surfaces of the cover plate (1) and the base plate (2); a plurality of first U-shaped grooves (4) with preset number are formed in the cover plate (1), a plurality of second U-shaped grooves (5) matched with the first U-shaped grooves (4) in the cover plate (1) are formed in the base plate (2), and optical fibers (3) with preset number are fixed through the first U-shaped grooves (4) and the second U-shaped grooves (5) matched with the first U-shaped grooves; a second glue layer (8) is filled in a gap between the first U-shaped groove (4) and the second U-shaped groove (5) matched with the first U-shaped groove;
the first glue layer (7) and the second glue layer (8) are thermosetting glue, the viscosity of the thermosetting glue at 25 ℃ is 1500-2000 cps, and the hardness of the cured glue is Shore 82D;
the substrate (2) comprises a connecting step (2.1) and an arc-shaped substrate (2.2) arranged at the front end of the connecting step (2.1), and a third glue layer (9) is coated on the connecting step (2.1);
the third glue layer (9) is ultraviolet curing glue, the viscosity of the ultraviolet curing glue at 25 ℃ is 4800-5300 cps, and the hardness after curing is Shore 50D;
a fourth glue layer (10) is coated on the arc-shaped substrate (2.2); the fourth glue layer (10) is silica gel glue, the viscosity of the silica gel glue at 25 ℃ is 45000cps, and the hardness after curing is Shore 27A.
2. The optical fiber array with high reliability according to claim 1, wherein: the cover plate (1) and the base plate (2) are both made of kovar alloy, and the coefficient of thermal expansion of the kovar alloy is 48 multiplied by 10-7～50×10-7。
3. The optical fiber array with high reliability according to claim 1 or 2, wherein: and the optical fiber section in each first U-shaped groove (4) and the matched second U-shaped groove (5) is a fiber section with a coating removed.
4. The optical fiber array with high reliability according to claim 1, wherein: the inner surfaces of the first U-shaped groove (4) and the second U-shaped groove (5) matched with the first U-shaped groove are provided with frosted surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350127.5A CN111007591B (en) | 2019-12-24 | 2019-12-24 | Optical fiber array with high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350127.5A CN111007591B (en) | 2019-12-24 | 2019-12-24 | Optical fiber array with high reliability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111007591A CN111007591A (en) | 2020-04-14 |
| CN111007591B true CN111007591B (en) | 2021-12-03 |
Family
ID=70117693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911350127.5A Active CN111007591B (en) | 2019-12-24 | 2019-12-24 | Optical fiber array with high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111007591B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099150A (en) * | 2020-09-28 | 2020-12-18 | 武汉驿路通科技股份有限公司 | Optical fiber array and manufacturing method thereof |
| CN113376774A (en) * | 2021-07-16 | 2021-09-10 | 亨通洛克利科技有限公司 | Optical fiber array and coupling structure for silicon optical module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005010200A (en) * | 2003-06-16 | 2005-01-13 | Ricoh Opt Ind Co Ltd | Optical component, product, manufacturing method of optical component, and adhesive material |
| CN103869433A (en) * | 2013-02-22 | 2014-06-18 | 浙江吉利汽车有限公司 | Fiber optic sheath |
| CN208110092U (en) * | 2018-05-18 | 2018-11-16 | 深圳鑫振华光电科技有限公司 | A kind of no cover board optical fiber U slot and fiber array |
| CN209044122U (en) * | 2018-11-22 | 2019-06-28 | 广东中德电缆有限公司 | A kind of optical cable that anti-torsion performance is good |
| CN209070142U (en) * | 2018-12-28 | 2019-07-05 | 山东锐峰光电科技有限公司 | A kind of fiber coupling chipware of disconnecting preventing adhesive process |
| CN209311733U (en) * | 2018-11-22 | 2019-08-27 | 中山市美速光电技术有限公司 | A kind of high-temperature resistant optical fiber array |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885118B (en) * | 2012-12-19 | 2017-03-29 | 四川飞阳科技有限公司 | Two dimension is without V-groove fiber array device and preparation method thereof |
| CN206741023U (en) * | 2017-03-20 | 2017-12-12 | 烽火通信科技股份有限公司 | A kind of fiber array for optoelectronic transceiver |
-
2019
- 2019-12-24 CN CN201911350127.5A patent/CN111007591B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005010200A (en) * | 2003-06-16 | 2005-01-13 | Ricoh Opt Ind Co Ltd | Optical component, product, manufacturing method of optical component, and adhesive material |
| CN103869433A (en) * | 2013-02-22 | 2014-06-18 | 浙江吉利汽车有限公司 | Fiber optic sheath |
| CN208110092U (en) * | 2018-05-18 | 2018-11-16 | 深圳鑫振华光电科技有限公司 | A kind of no cover board optical fiber U slot and fiber array |
| CN209044122U (en) * | 2018-11-22 | 2019-06-28 | 广东中德电缆有限公司 | A kind of optical cable that anti-torsion performance is good |
| CN209311733U (en) * | 2018-11-22 | 2019-08-27 | 中山市美速光电技术有限公司 | A kind of high-temperature resistant optical fiber array |
| CN209070142U (en) * | 2018-12-28 | 2019-07-05 | 山东锐峰光电科技有限公司 | A kind of fiber coupling chipware of disconnecting preventing adhesive process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111007591A (en) | 2020-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111007591B (en) | Optical fiber array with high reliability | |
| US10012796B2 (en) | MUX/DEMUX comprising capillary filter block and methods of producing the same | |
| US20190243071A1 (en) | An Optical Fiber Array with High Reliability | |
| CN206489297U (en) | 1 × 8 microminiature wavelength division multiplexer | |
| CN210109386U (en) | Optical fiber array for enhancing curing effect | |
| JP3031385B2 (en) | Flexible optical waveguide substrate and method of manufacturing the same | |
| US11385405B2 (en) | Fiber array for vertical coupling | |
| CN101639550A (en) | Method for manufacturing array optical fiber and device | |
| CN210109385U (en) | Reinforced optical fiber array | |
| CN104459884A (en) | Method for manufacturing wavelength division multiplexing and demultiplexing device | |
| CN210109378U (en) | Novel optical fiber array | |
| CN114200588B (en) | Optical demultiplexing component structure and packaging method | |
| CN206178195U (en) | 8 fiber array that bending resistance is rolled over | |
| CN108873179A (en) | A kind of adjustment method of silicon substrate coarse wavelength division multiplexing device assembly | |
| CN104049304A (en) | Multi-channel bidirectional reversible wavelength division multiplexer | |
| CN108549131A (en) | Optical fibre device with ceramic insertion core and its assemble method | |
| JP4947916B2 (en) | Optical waveguide circuit device | |
| CN208569098U (en) | A kind of silicon substrate coarse wavelength division multiplexing device assembly and its debugging apparatus | |
| CN206270545U (en) | 1 × 4 wavelength division multiplexer | |
| CN211454037U (en) | Connecting equipment with tail fibers for photoelectric transceiving | |
| CN111367023A (en) | Optical fiber backboard, optical fiber backboard tail fiber ribbon combining method and ribbon combining tool | |
| CN202075453U (en) | Wavelength division multiplexer | |
| CN212808695U (en) | C-Lens wave division multiplexer | |
| CN203930121U (en) | Multichannel bidirectional reversible wave division multiplexer | |
| CN210534377U (en) | Small-size optical fiber array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |