CN106199832A - Light guiding plate and optical fiber are of coupled connections method, light guiding plate and telecommunication transmission system - Google Patents
Light guiding plate and optical fiber are of coupled connections method, light guiding plate and telecommunication transmission system Download PDFInfo
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- CN106199832A CN106199832A CN201510233217.1A CN201510233217A CN106199832A CN 106199832 A CN106199832 A CN 106199832A CN 201510233217 A CN201510233217 A CN 201510233217A CN 106199832 A CN106199832 A CN 106199832A
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- optical fiber
- sandwich layer
- light guiding
- connecting groove
- guiding plate
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
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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
- G02B6/26—Optical coupling means
- G02B6/30—Optical coupling means for use between fibre and thin-film device
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Light guiding plate and the optical fiber that the present invention provides is of coupled connections method, light guiding plate and telecommunication transmission system, belongs to communication system.Being processed to form connecting groove on light guiding plate, bottom portion of groove comprises the sandwich layer of optical guided wave, optical fiber joint end embeds connecting groove and makes the sandwich layer of optical fiber dock with the sandwich layer of fiber waveguide.Compared with prior art, the groove carrying out inserting optical guided wave plate sandwich layer both sides not by guide pin carries out docking of the sandwich layer of optical fiber and the sandwich layer of fiber waveguide, but on light guiding plate, it is processed to form connecting groove, the direct up-winding fiber of this groove connects end, the sandwich layer of optical fiber is allowed directly to dock with the sandwich layer of optical guided wave plate, can be directed at accurately and be attached, it is not susceptible to the impact of the external force of environment such as vibrations, collision, the sandwich layer of optical fiber and the alignment precision of optical guided wave plate sandwich layer can be improved, and then improve transmission stability when communicating transmission.And, it is not necessary to band optical fiber joint end is with guide pin, it is possible to makes optical fiber joint end processing simple, improves the core competitiveness of product.
Description
Technical field
The present invention relates to the communications field, be of coupled connections method, light wave particularly to a kind of light guiding plate and optical fiber
Guide plate and telecommunication transmission system.
Background technology
The fast development of broadband connections, supercomputer and large data center constantly promotes information transmission bandwidth
Rapid growth, traditional electrical interconnection technology is more and more prominent in the limitation of the aspects such as bandwidth, distance, energy consumption
Going out, transmission bandwidth is the information transmission that the electrical interconnection technology of 10Gbps probably can only realize 0.3m～1m distance,
And it is the most helpless for the interconnection at a high speed such as 25Gbps, 40Gbps.In recent years, light based on Light Wave Guide Theory
Printing backboard interconnection technique progressively develops, and day by day obtains the most widely studied, is expected to obtain in the coming years
Application all sidedly.Relative to electrical interconnection technology, light printing backboard interconnection technique is in data transmission, green
The aspect such as energy-conservation, manufacturing cost and interconnection density thereof has outstanding advantage, between daughter board and backboard, at a high speed
Application great potential between chip, between high-speed chip and mass storage, will promote " three nets effectively
Merge ", " mobile Internet ", " Internet of Things " and " Technique Popularizing of the emerging fields such as cloud computing.At present,
The study hotspot of light network technology, one is, optical plate prepares the raising of transmission performance, and two are, fiber waveguide-light
The fine technology that is of coupled connections.
In light printing backboard transmission system, transmission system is stablized by the performance that is of coupled connections of fiber waveguide-optical fiber
Running and play the most crucial effect, affecting the be of coupled connections factor of performance of fiber waveguide-optical fiber mainly has, optical fiber,
The smooth degree of fiber waveguide end face, the longitudinal bias of fiber waveguide-fiber alignment coupling, axial deviation and the most inclined
Difference, system long-play optical fiber, fiber waveguide end face vulnerable to pollution, system is due to environment such as vibrations, collisions
The fiber waveguide that external force is caused-optical fiber connects deviation of the alignment etc., and these factors all can increase light to a certain extent
The loss of waveguide, thus reduce the stability of transmission system to a certain extent.
At present, coupling technique applied research is more.Coupling technique is typically by means of technical field of communication very
Ripe fiber optic connection technology realizes, and is usually used in fiber waveguide-optical fiber and connects the optical patchcord of coupling usually
With MPO interface and MT-RJ interface.The step of its encapsulation that is of coupled connections generally, first, utilizes and swashs
Light device is at the both sides of one group of 12 passage of fiber waveguide backboard of encapsulation etching square groove, and the spacing of square groove is the most permissible
Put the guide pin being inserted on optical patchcord union joint into, adjust frame by 6 dimensions and accurately regulate optical fiber and fiber waveguide pair
Quasi-precision, the guide pin in recycling ultraviolet glue solidification groove, also need to colloid solidification adapter, in order to light simultaneously
Fine union joint connects and fixes with this.Owing to being to use guide pin process to fix, it is easier by vibrations, collision etc.
The impact of external force of environment, is likely to result in the deviation of the alignment of fiber waveguide-optical fiber, and then affects optical backplane transmission
The stable operation of system.
Summary of the invention
The main technical problem to be solved in the present invention be to provide a kind of light guiding plate and optical fiber be of coupled connections method,
It is poor with optical fiber align that light guiding plate and telecommunication transmission system solve light guiding plate in prior art, so cause into
The problem of transmission stability difference during row communications.
For solving the problems referred to above, the present invention provides a kind of light guiding plate and optical fiber to be of coupled connections method, including:
Being processed to form connecting groove on light guiding plate, described bottom portion of groove comprises the sandwich layer of described optical guided wave；
Optical fiber joint end is embedded described connecting groove and makes the sandwich layer of described optical fiber and the sandwich layer pair of described fiber waveguide
Connect.
In an embodiment of the present invention, the described connecting groove that is processed to form on light guiding plate includes:
Determine on light guiding plate that machining area, described machining area include the sandwich layer of described optical guided wave；And determine in institute
State the groove parameters of machining area formation to be processed connecting groove；Described groove parameters includes groove shapes；Root
It is processed to form corresponding connecting groove at described machining area according to the groove parameters of the connecting groove determined.
In an embodiment of the present invention, the described groove parameters according to the connecting groove determined adds described
Territory, work area is processed to form the connecting groove of correspondence and includes: first laser beam is incided quartz lens, saturating through quartz
Mirror obtains the hot spot that shape is mated with the groove shapes of described connecting groove, then obtains shape with described through diaphragm
The etching hot spot that the groove shapes of connecting groove is consistent, is etched at described machining area by described etching hot spot
Form corresponding connecting groove.
In an embodiment of the present invention, after light guiding plate is processed to form connecting groove, by optical fiber even
Before connecing the end described connecting groove of embedding, also include: by laser beam, the bottom surface of the connecting groove of formation is carried out
Sweep erosion to process.
In an embodiment of the present invention, described optical fiber joint end is embedded described connecting groove make described light
Fine sandwich layer docks with the sandwich layer of described fiber waveguide and includes: vertical after being processed to form connecting groove on light guiding plate
The described connecting groove of optical fiber joint end embedding will make the sandwich layer of described optical fiber and the sandwich layer pair of described fiber waveguide
Connect.
In an embodiment of the present invention, described optical fiber is made optical fiber joint end being embedded described connecting groove
Sandwich layer dock with the sandwich layer of described fiber waveguide after, also include: dropping sandwich layer glue is to the sandwich layer of described fiber waveguide
With the sandwich layer butt-joint clearance of described optical fiber, carry out heat cure.
In an embodiment of the present invention, in dropping sandwich layer glue to described fiber waveguide and described optical fiber gap,
Also include after carrying out heat cure: dropping covering glue covers described connecting groove, carries out heat cure.
For solving the problems referred to above, the present invention also provides for a kind of light guiding plate, including:
On described light guiding plate, there is connecting groove, bottom described connecting groove, comprise described light guiding plate
Sandwich layer, described connecting groove is used for housing described optical fiber joint end.
For solving the problems referred to above, the present invention also provides for a kind of telecommunication transmission system, including light guiding plate and optical fiber:
Having connecting groove on described light guiding plate, described bottom portion of groove comprises the sandwich layer of described optical guided wave；
Described connecting groove houses the sandwich layer of described optical fiber joint end, the sandwich layer of described optical fiber and described fiber waveguide
Docking.
In an embodiment of the present invention, also include: the sandwich layer of described fiber waveguide and the sandwich layer of described optical fiber
Butt-joint clearance has solidification sandwich layer glue, the sandwich layer contiguity of sandwich layer with described optical fiber for making described fiber waveguide.
In an embodiment of the present invention, also include: also include in described groove cavity solidifying covering glue, use
In fixing described optical fiber and described fiber waveguide.
The invention has the beneficial effects as follows:
Be of coupled connections method, light guiding plate and telecommunication transmission system of light guiding plate and the optical fiber that the present invention provides exists
Being processed to form connecting groove on light guiding plate, bottom portion of groove comprises the sandwich layer of optical guided wave, and optical fiber joint end is embedding
Entering connecting groove makes the sandwich layer of optical fiber dock with the sandwich layer of fiber waveguide.Compared with prior art, not by leading
Pin carries out inserting the groove on optical guided wave plate sandwich layer both sides and carries out docking of the sandwich layer of optical fiber and the sandwich layer of fiber waveguide,
But on light guiding plate, it being processed to form connecting groove, the direct up-winding fiber of this groove connects end, allows optical fiber
Sandwich layer directly docks with the sandwich layer of optical guided wave plate, it is possible to accurate alignment is attached, it is not easy to shaken,
The impact of the external force of environment such as collision, it is possible to increase the sandwich layer of optical fiber and the alignment precision of optical guided wave plate sandwich layer, enters
And improve transmission stability when communicating transmission.And, it is not necessary to band optical fiber joint end is with guide pin, energy
Enough make optical fiber joint end processing simple, reduce cost, improve the core competitiveness of product.
Accompanying drawing explanation
The light guiding plate that Fig. 1 provides for the embodiment of the present invention one and optical fiber are of coupled connections method flow schematic diagram；
The light guiding plate that Fig. 2 provides for the embodiment of the present invention two and optical fiber are of coupled connections method flow schematic diagram；
The light guiding plate that Fig. 3 provides for the embodiment of the present invention three and optical fiber are of coupled connections method flow schematic diagram；
Fig. 3-1 is the printed circuit board containing fiber waveguide transport layer prepared that the embodiment of the present invention three provides
Schematic diagram；
Fig. 3-2 is that the excimer laser that the embodiment of the present invention three provides shows at fiber waveguide end face processing square groove
It is intended to；
Fig. 3-3 is the transforming laser device schematic diagram that the embodiment of the present invention three provides；
Fig. 3-4 be the embodiment of the present invention three provide the square groove processed is processed schematic diagram further；
Fig. 3-5 is that the employing 6 dimension adjustment frame that the embodiment of the present invention three provides makes light guiding plate optical fiber accurately be directed at
Operating diagram；
Fig. 3-6 be the embodiment of the present invention three provide to the light guiding plate fiber end face gap accurately harmonized
The schematic diagram of dropping sandwich layer glue；
Fig. 3-7 is that the employing capillary needle tubing square shaped groove dropping covering glue that the embodiment of the present invention three provides carries out solid
Change the schematic diagram of encapsulation；
Fig. 3-8 is that the connecting groove that the embodiment of the present invention three provides is shown in the structure of the plate inner region of light guiding plate
It is intended to；
Fig. 3-9 is the connecting groove that provides of the embodiment of the present invention three the connecting of plate inner region at light guiding plate
After structural representation；
The light guiding plate structural representation that Fig. 4 provides for the embodiment of the present invention three；
The telecommunication transmission system structural representation that Fig. 5 provides for the embodiment of the present invention three.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings and specifically
The present invention is described in further detail by embodiment.
Embodiment one
The light guiding plate of the present embodiment and optical fiber are of coupled connections method, as it is shown in figure 1, comprise the following steps:
Step S101: be processed to form connecting groove on light guiding plate, bottom portion of groove comprises the sandwich layer of optical guided wave；
In this step, light guiding plate refers to the printed circuit board of also fiber waveguide transport layer, it is thus understood that existing
The various circuit boards comprising fiber waveguide transport layer be included.Existing light guiding plate is processed,
I.e. sandwich layer and core layer process at light guiding plate is processed to form connecting groove, and the bottom of this connecting groove is wanted
Comprise the sandwich layer of optical guided wave, it is simple to the sandwich layer of optical fiber and the sandwich layer pair of fiber waveguide when optical fiber embeds this connecting groove
Connect.Further, the precision docked with the sandwich layer of fiber waveguide for the ease of the sandwich layer of optical fiber, it is preferred that should
Connecting groove is bigger than the connection end of optical fiber, it is simple to the precision carrying out docking adjusts.
Step S102: optical fiber joint end is embedded connecting groove and makes the sandwich layer of optical fiber dock with the sandwich layer of fiber waveguide.
In this step, owing to comprising the sandwich layer of fiber waveguide bottom connecting groove, then when optical fiber is embedded,
The connection end that should allow optical fiber docks with bottom connecting groove, and then can allow the sandwich layer of optical fiber and fiber waveguide
Sandwich layer docks.In order to the sandwich layer of more preferable optical fiber docks with the sandwich layer of fiber waveguide, further can be to optical fiber
Connecting portion is adjusted, and makes the sandwich layer of optical fiber dock precisely with the sandwich layer of fiber waveguide.Due to not by guide pin
Two ends are fixed, and directly the union joint of optical fiber are embedded connecting groove, and such motility is strong, it is simple to adjust, make
It is high that the sandwich layer of optical fiber docks precision with the sandwich layer of fiber waveguide.
Concrete, in above-mentioned steps S101, being processed to form connecting groove on light guiding plate can be at light
Determining machining area on waveguide plate, machining area includes the sandwich layer of optical guided wave；And determine at machining area to be added
Work forms the groove parameters of connecting groove；Groove parameters includes groove shapes；According to the connecting groove determined
Groove parameters is processed to form the connecting groove of correspondence at machining area.Merit attention is that groove parameters here is
Refer to specifically how to be processed into the relevant parameter of connecting groove.The shape of such as groove, concrete, this groove type
Shape wants the connection end of energy up-winding fiber, it is preferred that this groove is formed consistent, the most greatly with the connection end of optical fiber
Point.Certainly, this groove parameters can also comprise the thickness etc. of concrete groove.
Concrete, in order to obtain the connecting groove wanted, with specific reference to the groove parameters of the connecting groove determined
Laser beam first can be incided quartz lens, through quartz by the connecting groove being processed to form correspondence at machining area
Lens obtain the hot spot that mates with the groove shapes of connecting groove of shape, then through diaphragm acquisition shape be connected recessed
The etching hot spot that the groove shapes of groove is consistent, forms corresponding connection by etching hot spot in machining area etching
Groove.It should be noted that the side obtaining the etching hot spot consistent with the groove shapes of connecting groove here
Method is only a kind of specific embodiment, it is understood that if the existing groove that can obtain with connecting groove
The etching light spot method that shape is consistent is included in the present invention.
In the light guiding plate connection procedure with optical fiber, the smooth degree of docking end face is to the coupling after connecting below
Conjunction loss has a great impact, in order to further reduce the coupling loss after connection below, in fiber waveguide
After being processed to form connecting groove on plate, before optical fiber joint end is embedded connecting groove, also include: pass through laser
Restraint the bottom surface to the connecting groove formed and sweep erosion process.After so processing, it is possible to increase connecting groove
The smooth degree of bottom surface, i.e. can improve the smooth degree in sandwich layer face bottom connecting groove, reduces after docking
Coupling loss.Yes meriting attention, the method only one processed by sweeping erosion here is embodied as
Example, it is understood that as long as the existing sandwich layer end face that can make connecting groove bottom surface becomes smooth method all
It is included in the present invention.
If the end face of the sandwich layer end face of the i.e. connecting groove of union joint and optical fiber exposes in atmosphere, long-time after
Optical fiber and fiber waveguide end face are vulnerable to the pollution of dust in air, are further exacerbated by scattering loss, finally affect
The stable operation of optical backplane transmission system, then in order to avoid this situation occurs, it is preferred that by optical fiber
Connect end to embed connecting groove and make the sandwich layer of optical fiber dock with the sandwich layer of fiber waveguide to include: add on light guiding plate
Optical fiber joint end is embedded connecting groove after forming connecting groove and makes the sandwich layer of optical fiber and the core of fiber waveguide by work immediately
Layer docking.Yes merit attention, here after being processed to form connecting groove, be only attached method immediately
It is a kind of specific embodiment, it is understood that if the existing sandwich layer end face that can make groove floor and optical fiber
The end face connecting end avoids the method polluted by extraneous factors such as air to be included in the present invention.
The compactness docked with the sandwich layer of fiber waveguide due to the sandwich layer of optical fiber is very big on coupling loss impact, in order to
Improve the sandwich layer of optical fiber tight with docking of the sandwich layer of fiber waveguide, can optical fiber joint end embedding connected recessed
After groove makes the sandwich layer of optical fiber dock with the sandwich layer of fiber waveguide, the sandwich layer of dropping sandwich layer glue to fiber waveguide and optical fiber
In sandwich layer butt-joint clearance, carry out heat cure.As such, it is possible to improve the sandwich layer of optical fiber and the sandwich layer of fiber waveguide
Docking closely, and then reduces coupling loss, can improve the stability followed by transmission.Merit attention and be
, here be only a kind of specific embodiment by dropping sandwich layer gluing method, it is understood that existing
As long as the sandwich layer of optical fiber can be improved be included in the present invention with the close method of docking of the sandwich layer of fiber waveguide
In.
Further, in order to avoid being affected by external force of environment such as vibrations, collisions after docking precisely, it is likely to result in
Fiber waveguide and the sandwich layer deviation of the alignment of optical fiber, and avoid using other colloids to encapsulate the caused change of connecting groove
Learn the drawback of reaction (packaging plastic and covering glue, sandwich layer glue it may happen that chemical reaction), at dropping sandwich layer glue
To fiber waveguide with optical fiber gap, also include after carrying out heat cure: dropping covering glue covers connecting groove, enters
Row heat cure.Yes merit attention, here by dropping covering gluing method only one be embodied as
Example, it is understood that as long as the existing method that can realize the effect above is included in the present invention.
Embodiment two
The light guiding plate of the present embodiment of the present embodiment and optical fiber are of coupled connections method, the method tool in this example
Body is as in figure 2 it is shown, comprise the following steps:
Step S201: the preparation printed circuit board i.e. light guiding plate containing fiber waveguide transport layer；
In this step, the light guiding plate prepared in this step, sandwich layer a size of 50 μm x50 μm, on
Covering and under-clad layer thickness are 50 μm, or on the sandwich layer of fiber waveguide, top covering and under-clad layer size be not limited to
State size.
Step S202: use laser instrument to inscribe rectangular recess at the light guiding plate end face prepared；
In this step, concrete can arrange on the working software of laser instrument exposure energy, get ready frequency,
The parameters such as stepping rate, then carry out laser ablation；Being construed as must be in advance when above-mentioned laser instrument is inscribed
Determine laser energy, live some process time and stepping rate thereof.Merit attention and be, rectangular recess here
The one of connecting groove, shape design of concrete connecting groove etc. according to specific circumstances depending on.
Step S203: to process further for processing intact rectangular recess；
In this step, carry out processing mainly to reduce light guiding plate surface roughness.Can take to move back
The method of fire processes, but annealing temperature and annealing time accurately to determine；CO2 laser can also be utilized
Heat effect processes, and specific practice is accurately to control CO2 laser to carry out flyback erosion groove, reduces groove with this thick
Rugosity；Etc..
Step S204: accurately regulation 6 dimension adjusts frame, makes optical fiber be embedded in rectangular channel, and makes optical fiber and light
Waveguide is accurately directed at；
In this step, when adjustment 6 dimension adjustment framves make fiber waveguide-plate be connected with optical fiber align, need to be by means of biography
Communication system (being made up of light source, light back board sample, energy meter and connection optical fiber thereof) shows that its return loss is come
Carry out in real time, when its return loss minimizes big, illustrate that light guiding plate is connected alignment with optical fiber and reaches
Excellent.
Step S205: under the microscope, uses capillary needle tubing dropping sandwich layer glue to light guiding plate and optical fiber gap
In, carry out heat cure, reach well to touch；
Step S206: use capillary needle tubing dropping covering glue to cover whole rectangular channel, carry out heat cure, complete
The whole flow process of union joint cure package.
Merit attention and be, in step S205 and S206, dropping sandwich layer glue and during covering glue, need by
Microscope, in order to accurate flow control and some glue position thereof.
Compared with existing parallel coupling technology, the invention have the advantages that and feature: the present embodiment
Method, union joint makes simple, and preparation efficiency is high, can be mass；Micro-processing technology dexterously
It is applied to, in the middle of light guiding plate and optical fiber parallel coupling technology, overcome due to external force of environment such as vibrations, collisions
The deviation of the alignment that caused fiber waveguide-optical fiber connects, and avoid union joint and expose its end in atmosphere for a long time
The undesirable element that face is easily polluted by dust, finally realizes the light network transmission long reliable and stable operation of system；
And the package curing of union joint covering glue, it is to avoid may bring with other colloid package curings and change
Learn the drawback of reaction, protect union joint further, use other colloids to encapsulate, due to the physical chemistry of material
Characteristic is different, this it appears that the groove marking under microscope, and package curing described herein, then without obvious
The groove marking；Preparation method due to simple, efficiency is high, reduces production cost generally.
Yes meriting attention, it is parallel with light guiding plate that the method application of the present embodiment is not limited solely to optical fiber
Coupling, also can be implemented in the vertical coupled of optical fiber and light guiding plate.Such as, fiber perpendicular inserts in groove,
But fiber end face to be processed into the inclined-plane of 45 degree, and inclined-plane plating highly reflecting films, with when fiber waveguide is vertical coupled,
Inclined-plane is towards the outer direction of fiber waveguide end face, and flashlight can be carried out in vertical reflection entrance fiber waveguide through inclined-plane
Transmission；Or, fiber waveguide needs vertical region to prepare grating coupler, the positive upper end of grating coupler upper
Covering inscribes groove, and the thickness of groove not can exceed that the thickness of top covering, and fiber perpendicular is inserted into groove to be carried out
Solidification, the flashlight of fiber-optic transfer enters to be transmitted in fiber waveguide through grating coupler is vertical coupled.
Embodiment three
The light guiding plate of the present embodiment of the present embodiment and optical fiber are of coupled connections method, mainly by laser instrument
At the fiber waveguide end face etching rectangular recess prepared, this rectangular recess is the one of connecting groove, concrete
Shape can as the case may be depending on, then optical fiber be embedded in rectangular recess go the coupling that achieves a butt joint,
After utilize waveguide glue to carry out cure package, realize the parallel coupling of fiber waveguide-optical fiber with this.The method is dexterously
Micro-processing technology is applied in the middle of light guiding plate and optical fiber parallel coupling technology, overcomes due to vibrations, touch
The deviation of the alignment that the caused fiber waveguide of external force of environment-optical fiber connects such as hit, and avoid union joint and expose for a long time
The undesirable element that its end face is easily polluted by dust in atmosphere, finally realizes light network transmission system long
Reliable and stable operation.
Method in the present embodiment, as a example by certain optical waveguide material, fiber waveguide characteristic size is
5050 μm x50 μm, optical wavelength transmission is 850nm, and the method in this example is concrete as it is shown on figure 3, include
Following steps:
Step S301: see Fig. 3-1, the printed circuit board containing fiber waveguide transport layer prepared i.e. fiber waveguide
Plate, its top covering 1 and under-clad layer 3 thickness are 50 μm, and sandwich layer 2 is rectangular shape, a size of
50μmx50μm；
Step S302: see Fig. 3-2, the laser beam 4 that CO2 laser instrument sends obtains expection through converting means
The hot spot of shape, first, CO2 laser beam incides quartz lens 5, through quartz lens obtain size dimension with
The hot spot of the rectangular recess size coupling etched, then obtain size and rectangular recess consistent size through diaphragm 6
Rectangular light spot 7；
Step S303: see Fig. 3-3, laser instrument etches rectangular recess 8 at fiber waveguide end face, arranges laser instrument
The parameters such as the energy of working software, frequency, stepping rate, it is possible to obtain the light required for etching rectangular recess
Spot size；
Step S304: see Fig. 3-4, processes further to the rectangular recess processed, and its specific practice can
To be the end face 8 using laser beam to carry out flyback erosion rectangular recess for more than 9 time.
Step S305: see Fig. 3-5, accurately adjusts 6 dimensions and adjusts frame 11, make optical fiber 10 be embedded into rectangle recessed
In groove, and the sandwich layer of optical fiber and fiber waveguide is made accurately to be directed at.
Step S306: see Fig. 3-6, under the microscope, uses capillary needle tubing 12 to drip sandwich layer glue 13 and arrives
In light guiding plate and optical fiber gap, then carry out heat cure, make light guiding plate and optical fiber reach well and touch.Aobvious
The effect of micro mirror can control the degree of accuracy of operating point, and the effect of capillary needle tubing is then can accurately to control core
The consumption of layer glue, reaches good intensive effect.
Step S307: see Fig. 3-7, under the microscope, uses capillary needle tubing 12 to drip covering glue 14 and covers
Cover whole rectangular recess, then carry out heat cure, complete the whole flow process of union joint cure package.
So far, optical fiber is embedded into fiber waveguide facing groove complete to the flow process realizing the process of parallel coupling
Finish.
In the present embodiment, under-clad layer, sandwich layer, top covering thickness by optical waveguide material used and to be passed
Defeated optical wavelength determines.
In the present embodiment, the preparation technology of the printed circuit board containing fiber waveguide transport layer can use existing skill
Art makes, such as doctor blade method, hot-die stamped method, etc..
Further, the present invention can also have the groove of other application scenarios, such as fiber waveguide not to be to place
At end face, but the region in plate, see Fig. 3-8, the printed circuit containing fiber waveguide transport layer prepared
Plate, its top covering 1 and under-clad layer 3 thickness are 50 μm, and sandwich layer 2 is rectangular shape, a size of
50μmx50μm.Groove 4 is the groove using CO2 laser fabrication, groove size and optical fiber 10 phase
Joining, groove 4 is swept erosion through laser and is processed.Accurately adjust 6 dimensions and adjust frame 11, make optical fiber 10 be embedded into rectangle
In groove, and make the sandwich layer of optical fiber and fiber waveguide accurately be directed at, under the microscope, use capillary needle tubing 12
Add sandwich layer glue 13 in fiber waveguide-optical fiber gap, then carry out heat cure, make fiber waveguide-optical fiber reach the closeest
Connect.Seeing Fig. 3-9, under the microscope, using capillary needle tubing 12 to drip covering glue 14, to cover whole rectangle recessed
Groove, then carry out heat cure, complete the whole flow process of union joint cure package, at this moment in product appearance, optical fiber will
To fly the form of tail from plate out.
It should be noted that in the present embodiment, be as a example by an optical fiber, it is also possible to have many light simultaneously
Fine and optical waveguide coupled, form multichannel light path and connect.For improving positioning precision, location can be increased and lead
The design of pin, such as, increase by two location guide pinholes, but this depend on supporting at the two ends of row's fiber waveguide
The specification of optical fiber.Using light guiding plate in the present embodiment and optical fiber to be of coupled connections method, its method and thought is
Micro-processing technology technique and adapter are prepared ingenious combination, it is characterised in that utilize laser instrument to be digitized
Process simple, high efficient and reliable, production cost can be reduced generally with Mass production.Propose adopts
It is characterized in that by the method for capillary needle tubing dropping sandwich layer glue and covering glue, preparation technology is simple, and efficiency is higher,
Only need the most accurately to control capillary needle tubing and the Aligning degree of square groove and glue consumption thereof.Adjusted
The light guiding plate being directed at and fiber connector, its gap sandwich layer glue touches, and can reduce scattering loss；
Whole union joint covering adhesive curing encapsulates, and maximum advantage is solid and reliable, overcomes because of vibrations, collision
The deviation of the alignment produced Deng external force of environment, it also avoid koniology and pollutes union joint end face unfavorable factor
Impact, and make the long reliability service of transmission system, meanwhile, the use of covering glue also can be avoided using it
(packaging plastic and covering glue, sandwich layer glue are it may happen that chemistry is anti-for his colloid encapsulation the caused chemical reaction of rectangular channel
Should) drawback, protect union joint further.Other colloids are used to encapsulate, due to the physical chemistry of material
Characteristic is different, this it appears that the groove marking under microscope, and package curing described herein, then without obvious
The groove marking.
Embodiment four
A kind of light guiding plate 400 of the present embodiment offer, as shown in Figure 4, including: the tool on described light guiding plate
Having connecting groove 401, comprise the sandwich layer of described light guiding plate bottom described connecting groove, described connecting groove is used
In housing described optical fiber joint end.
The present embodiment also provides for a kind of telecommunication transmission system, as it is shown in figure 5, include light guiding plate 400 and light
Fine 500: having connecting groove on described light guiding plate, described bottom portion of groove comprises the sandwich layer of described optical guided wave；
Described connecting groove houses described optical fiber joint end, and the sandwich layer of described optical fiber docks with the sandwich layer of described fiber waveguide.
Further, also include: the sandwich layer of described fiber waveguide has solidification core in the sandwich layer butt-joint clearance of described optical fiber
Layer glue, the sandwich layer contiguity of sandwich layer with described optical fiber for making described fiber waveguide.Further comprise: described
Also include in groove cavity solidifying covering glue, be used for fixing described optical fiber and described fiber waveguide.
One of ordinary skill in the art will appreciate that all or part of step in said method can be come by program
Instruction related hardware completes, and said procedure can be stored in computer-readable recording medium, such as read-only storage
Device, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or
Multiple integrated circuits realize.Correspondingly, each module/unit in above-described embodiment can use the shape of hardware
Formula realizes, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to any particular form
The combination of hardware and software.
Above example is only in order to illustrate technical scheme and unrestricted, reference only to preferred embodiment
The present invention has been described in detail.It will be understood by those within the art that, can be to the present invention's
Technical scheme is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention, all
Should contain in the middle of scope of the presently claimed invention.
Claims (11)
1. a light guiding plate and optical fiber are of coupled connections method, it is characterised in that including:
Being processed to form connecting groove on light guiding plate, described bottom portion of groove comprises the sandwich layer of described optical guided wave；
Optical fiber joint end is embedded described connecting groove and makes the sandwich layer of described optical fiber and the sandwich layer pair of described fiber waveguide
Connect.
2. light guiding plate as claimed in claim 1 and optical fiber are of coupled connections method, it is characterised in that
The described connecting groove that is processed to form on light guiding plate includes: determine machining area on light guiding plate, described
Machining area includes the sandwich layer of described optical guided wave；And determine in described machining area formation to be processed connecting groove
Groove parameters；Described groove parameters includes groove shapes；Groove parameters according to the connecting groove determined exists
Described machining area is processed to form the connecting groove of correspondence.
3. light guiding plate as claimed in claim 2 and optical fiber are of coupled connections method, it is characterised in that
The described groove parameters according to the connecting groove determined is processed to form the connecting groove of correspondence at described machining area
Including: first laser beam is incided quartz lens, obtain the recessed of shape and described connecting groove through quartz lens
The hot spot of groove shape coupling, then obtain, through diaphragm, the etching that shape is consistent with the groove shapes of described connecting groove
Hot spot, forms corresponding connecting groove by described etching hot spot in described machining area etching.
4. light guiding plate as claimed in claim 3 and optical fiber are of coupled connections method, it is characterised in that
After light guiding plate is processed to form connecting groove, before optical fiber joint end is embedded described connecting groove, also wrap
Include: by laser beam, erosion is swept in the bottom surface of the connecting groove of formation and process.
5. the light guiding plate as described in claim 1-4 and optical fiber are of coupled connections method, it is characterised in that
Described optical fiber joint end is embedded described connecting groove make the sandwich layer of described optical fiber and the sandwich layer pair of described fiber waveguide
Connect and include: immediately optical fiber joint end is embedded described connection recessed after being processed to form connecting groove on light guiding plate
Groove makes the sandwich layer of described optical fiber dock with the sandwich layer of described fiber waveguide.
6. the light guiding plate as described in any one of claim 1-4 and optical fiber are of coupled connections method, and it is special
Levying and be, making the sandwich layer of described optical fiber and described fiber waveguide optical fiber joint end being embedded described connecting groove
After sandwich layer docking, also include: dropping sandwich layer glue docks to the sandwich layer of described fiber waveguide and the sandwich layer of described optical fiber
In gap, carry out heat cure.
7. light guiding plate as claimed in claim 6 and optical fiber are of coupled connections method, it is characterised in that
At dropping sandwich layer glue to described fiber waveguide with described optical fiber gap, also include after carrying out heat cure: dropping bag
Layer glue covers described connecting groove, carries out heat cure.
8. a light guiding plate, it is characterised in that including:
On described light guiding plate, there is connecting groove, bottom described connecting groove, comprise described light guiding plate
Sandwich layer, described connecting groove is used for housing described optical fiber joint end.
9. a telecommunication transmission system, it is characterised in that include light guiding plate and optical fiber:
Having connecting groove on described light guiding plate, described bottom portion of groove comprises the sandwich layer of described optical guided wave；
Described connecting groove houses the sandwich layer of described optical fiber joint end, the sandwich layer of described optical fiber and described fiber waveguide
Docking.
10. telecommunication transmission system as claimed in claim 9, it is characterised in that also include: described light
The sandwich layer of waveguide and the sandwich layer butt-joint clearance of described optical fiber have solidification sandwich layer glue, is used for making described fiber waveguide
The sandwich layer contiguity of sandwich layer and described optical fiber.
11. telecommunication transmission systems as claimed in claim 8 or 9, it is characterised in that also include: institute
Also include solidifying covering glue in stating groove cavity, be used for fixing described optical fiber and described fiber waveguide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233217.1A CN106199832B (en) | 2015-05-08 | 2015-05-08 | Optical waveguide plate and optical fiber coupling connection method, optical waveguide plate and communication transmission system |
| PCT/CN2016/074707 WO2016180071A1 (en) | 2015-05-08 | 2016-02-26 | Coupled connecting method for optical wave guide plate and optical fibers， optical wave guide plate and telecommunication transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233217.1A CN106199832B (en) | 2015-05-08 | 2015-05-08 | Optical waveguide plate and optical fiber coupling connection method, optical waveguide plate and communication transmission system |
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| CN106199832A true CN106199832A (en) | 2016-12-07 |
| CN106199832B CN106199832B (en) | 2020-02-07 |
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| CN201510233217.1A Active CN106199832B (en) | 2015-05-08 | 2015-05-08 | Optical waveguide plate and optical fiber coupling connection method, optical waveguide plate and communication transmission system |
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| CN (1) | CN106199832B (en) |
| WO (1) | WO2016180071A1 (en) |
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| WO2017118387A1 (en) * | 2016-01-06 | 2017-07-13 | 中兴通讯股份有限公司 | Optical waveguide assembly |
| CN107942451A (en) * | 2017-12-14 | 2018-04-20 | 武汉电信器件有限公司 | A kind of coupling process and coupled structure of silicon optical chip |
| CN108303767A (en) * | 2018-02-09 | 2018-07-20 | 苏州德睿电力科技有限公司 | A method of preparing concave mirror in optical waveguide |
| CN109100833A (en) * | 2018-06-06 | 2018-12-28 | 苏州席正通信科技有限公司 | Opto-electronic integrated circuit board connector of parallel coupling and preparation method thereof |
| CN111367017A (en) * | 2020-03-20 | 2020-07-03 | 中航光电科技股份有限公司 | Waveguide-optical fiber vertical coupling structure on board |
| CN111580203A (en) * | 2020-04-07 | 2020-08-25 | 江苏大学 | Device and method for preparing rectangular-structure grating by ultrafast laser direct writing |
| CN112327420A (en) * | 2020-11-03 | 2021-02-05 | 中航光电科技股份有限公司 | Waveguide through optical fiber alignment coupling transmission structure and production process |
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| WO2017118387A1 (en) * | 2016-01-06 | 2017-07-13 | 中兴通讯股份有限公司 | Optical waveguide assembly |
| CN107942451A (en) * | 2017-12-14 | 2018-04-20 | 武汉电信器件有限公司 | A kind of coupling process and coupled structure of silicon optical chip |
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| CN111367017B (en) * | 2020-03-20 | 2022-05-20 | 中航光电科技股份有限公司 | Waveguide-optical fiber vertical coupling structure on board |
| CN111580203A (en) * | 2020-04-07 | 2020-08-25 | 江苏大学 | Device and method for preparing rectangular-structure grating by ultrafast laser direct writing |
| CN112327420A (en) * | 2020-11-03 | 2021-02-05 | 中航光电科技股份有限公司 | Waveguide through optical fiber alignment coupling transmission structure and production process |
Also Published As
| Publication number | Publication date |
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| CN106199832B (en) | 2020-02-07 |
| WO2016180071A1 (en) | 2016-11-17 |
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