CN106908915A - For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays - Google Patents
For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays Download PDFInfo
- Publication number
- CN106908915A CN106908915A CN201710084501.6A CN201710084501A CN106908915A CN 106908915 A CN106908915 A CN 106908915A CN 201710084501 A CN201710084501 A CN 201710084501A CN 106908915 A CN106908915 A CN 106908915A
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- China
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- substrate
- optical fiber
- condensing body
- hemisphere
- leading portion
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
Abstract
The invention discloses a kind of hemisphere GRIN Lens fiber array and its manufacture method for the coupling of VSCEL or PIN arrays, processed by substrate, condensing body welding, the step such as optical fiber assembling and condensing body grinding is produced including substrate, cover plate and multifiber, substrate includes substrate leading portion and base plate rear section, substrate leading portion upper surface is higher than base plate rear section upper surface, substrate leading portion upper surface is provided with the multiple and one-to-one V-shaped groove of multifiber, every optical fiber is arranged in corresponding V-shaped groove, and every optical fiber forward extends out welding on rear its end face and has one section of condensing body from substrate leading portion, cover plate is arranged on substrate leading portion, and cover plate encloses the accommodation space of fixed optical fiber with each V-shaped groove；Condensing body is included with substrate bottom surface in the optical flat of 30 ° to 60 ° angles and the hemisphere GRIN Lens fiber array of the arc sphere for being connected optical flat and condensing body bottom surface.Compared to prior art, it has, and coupling efficiency is high, low cost and other advantages.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of hemisphere autohemagglutination for the coupling of VSCEL or PIN arrays
Focus lens fiber array and its manufacture method.
Background technology
With the development of economy era, the communications field in the life of people in occupation of increasingly consequence, and
People have been no longer satisfied with the communications that transmission rate is low, transmittability is weak, and start to update Optical Fiber Transmission this
Transmission means, in the middle of this continuous improvement, the optical fiber technology of the communications field is more and more ripe.
The emergent light of VCSEL and PIN is perpendicular to the circuit board surface installed, and this is all little for the encapsulation and application of device
It is convenient.Simplest optical interface is that optical fiber is docked with VCSEL and PIN, and the emergent light of laser is directly entered optical fiber, without
Other intermediary elements, such coupled modes are referred to as vertical coupled.The vertical coupled reflection due to light causes speed too high,
Further, since being vertical coupled, optical fiber, into perpendicular shape, causes the volume of optical module to increase with PCB.Coupling side typically now
Formula is that fiber array is ground into 90 ° of corners that reflecting surface at 45 ° realizes optical signal, it is ensured that the efficiency of coupling package and product it is whole
Body structure is smaller, although 45 ° of reflectings surface can realize the total reflection of optical signal, but fiber array is believed with the light of VCSEL and PIN
Number coupling efficiency is not very high；Also have in the prior art and a piece of lens be respectively set in the light path both sides of 45 ° of reflectings surface, VCSEL and
The emergent light of PIN by being irradiated to 45 ° of reflectings surface after a face lens light gathering, by 45 ° of light of reflective surface again by one
Enter in optical fiber after the lens light gathering of face, such setting can greatly improve the coupling efficiency of optical signal, but such setting
Cost is too high, is unfavorable for producing in large quantity and uses.
The content of the invention
For weak point present in above-mentioned technology, a kind of low cost of present invention design, optical signal coupling efficiency are high, energy
The hemisphere GRIN Lens fiber array and its manufacture method for the coupling of VSCEL or PIN arrays for enough solving the above problems.
To achieve the above object, provided by the present invention for the hemisphere GRIN Lens optical fiber of VSCEL or PIN arrays coupling
Array, including substrate, cover plate and multifiber, the substrate include substrate leading portion and base plate rear section, the substrate leading portion upper table
Face is higher than the base plate rear section upper surface, and the substrate leading portion upper surface is provided with the multiple and one-to-one V-arrangement of multifiber
Groove, every optical fiber is arranged in corresponding V-shaped groove, and every optical fiber is forward extended out on rear its end face from substrate leading portion
Welding has one section of condensing body with self-focusing effect, and the cover plate is arranged on substrate leading portion, and cover plate is equal with each V-shaped groove
Enclose the accommodation space of fixed optical fiber；The condensing body includes the optical flat and rank in 30 ° to 60 ° angles with substrate bottom surface
Connect the arc sphere of optical flat and condensing body bottom surface；The radius of curvature of the arc sphere is 75-125um, external optical signal
Enter the inside of optical fibre after condensing body self-focusing, arc sphere optically focused and optical flat reflect.
Wherein, the tail glue for fixing and protecting optical fiber is coated with the optical fiber between the cover plate and base plate rear section, and
Height of the height of the tail glue less than or equal to cover plate.
Wherein, the length of the condensing body is 0.15mm to 0.25mm.
Wherein, the intersection of the substrate leading portion and base plate rear section is provided with excessive inclined-plane.
Wherein, upper level of the bottom surface of each V-shaped groove with base plate rear section is consistent.
To achieve these goals, present invention also offers a kind of hemisphere self-focusing for the coupling of VSCEL or PIN arrays
The manufacture method of lens fiber array, the manufacture method is comprised the following steps：
Step 1, substrate processing：A slope is processed on substrate, substrate is divided into substrate leading portion and base plate rear section by slope, then
Multiple V-shaped grooves being adapted with optical fiber shape size are opened up in the upper surface of substrate leading portion；
Step 2, condensing body welding：In one section of condensing body of the equal welding in one end of every optical fiber, every section of length and size of condensing body
It is consistent；
Step 3, condensing body are fused：Fuse to form sphere every one end of condensing body, and the sphere diameter and condensing body
Diameter it is identical；
Step 4, optical fiber assembling：The optical fiber of the good condensing body of every welding is placed in V-shaped groove corresponding on substrate, and will be molten
The one end for being connected to condensing body sphere forward extends out from substrate leading portion, and keeps the length that every optical fiber stretches out consistent, finally will lid
Plate is fixed on the upper surface of substrate leading portion to fix optical fiber, constitutes fiber array；
Step 5, condensing body grinding：One end that the condensing body that every assembles is machined with sphere is ground, by the upper of sphere
Hemisphere face grinds to form can be with the optical flat of reflected light signal.
Wherein, upper level of the bottom surface of each V-shaped groove with base plate rear section is consistent in step 1.
Wherein, a diameter of 0.15mm to 0.25mm of the sphere for coming is fused in step 2.
Wherein, step 3 is also coated including tail glue：It is coated with for fixing on every optical fiber between cover plate and base plate rear section
With the height that the height of the tail glue of protection optical fiber, and the tail glue is less than or equal to cover plate.
Wherein, optical flat and substrate bottom surface are in 30 ° to 60 ° of angle in step 4.
Advantage of the invention is that：
1st, the fiber array that the present invention is provided, has one section of optically focused with self-focusing function by one end welding of every optical fiber
Body, then optical flat and arc sphere are processed on the end face of condensing body, the cooperation of optical flat and arc sphere can be same
The advantage of Shi Shixian lens light gatherings and optical flat reflected light, while condensing body self-focusing effect in itself can also strengthen optical signal
Reception and ability of aggregation, substantially reduced compared to existing utilization separate lenses and optical flat work in combination its cost, separately
The outer tolerance that it is also added significantly to fiber array, its scope is bigger when coupling adjustment is carried out to optical fiber, so as to reduce
The difficulty of coupling and increased the efficiency of coupling；
2nd, one end of every light of the invention processes condensing body, and wherein condensing body optical flat is with the angle of substrate bottom surface
30 ° to 60 ° can realize well optical signal be irradiated on optical flat after total reflection, make optical flat in no plated film
In the case of, can well realize the total reflection of optical signal by the reflection of angle.
3rd, the condensing body and optical fiber in the present invention are integral type structure, and its optically focused angle etc. need not be adjusted additionally, can
It is high by property, it is mounted directly optical fiber and processes the i.e. achievable high-precision light path coupling of condensing body, improve coupling efficiency.
Brief description of the drawings
Fig. 1 is top view of the present invention for the hemisphere GRIN Lens fiber array of VSCEL or PIN arrays coupling；
Fig. 2 is front view of the present invention for the hemisphere GRIN Lens fiber array of VSCEL or PIN arrays coupling；
Fig. 3 is the partial enlarged drawing at A in Fig. 2；
Fig. 4 is flow of the present invention for the manufacture method of the hemisphere GRIN Lens fiber array of VSCEL or PIN arrays coupling
Figure.
Main element symbol description is as follows：
1st, substrate 2, cover plate
3rd, optical fiber 4, tail glue
11st, substrate leading portion 12, base plate rear section
13rd, excessive inclined-plane 31, condensing body
311st, optical flat 312, arc sphere.
Specific embodiment
In order to more clearly state the present invention, the present invention is further described below in conjunction with the accompanying drawings.
Fig. 1-3 are referred to, provided by the present invention for the hemisphere GRIN Lens optical fiber array of VSCEL or PIN arrays coupling
Row and its manufacture method, including substrate 1, cover plate 2 and multifiber 3, substrate 1 include substrate leading portion 11 and base plate rear section 12, base
The upper surface of plate leading portion 11 is higher than the upper surface of base plate rear section 12, and the upper surface of substrate leading portion 11 is provided with multiple and multifiber 3 one by one
Corresponding V-shaped groove, every optical fiber 3 is arranged in corresponding V-shaped groove, and every optical fiber 3 from substrate leading portion 11 forward
Welding has one section of condensing body 31 with self-focusing effect on its end face after stretching out, and cover plate 2 is arranged on substrate leading portion 11, and lid
Plate 2 encloses the accommodation space of fixed optical fiber with each V-shaped groove；Condensing body 31 is included with the bottom surface of substrate 1 in 30 ° to 60 ° folders
The optical flat 311 and linking optical flat 311 at angle and the arc sphere 312 of the bottom surface of condensing body 31；The curvature of arc sphere 312
Radius is 75-125um, and the self-focusing of external optical signal condensing body 31, the optically focused of arc sphere 312 and optical flat 311 reflect laggard
Enter inside optical fiber 3.
In the present embodiment, it is coated with for fixing and protecting optical fiber 3 on the optical fiber 3 between cover plate 2 and base plate rear section 12
Tail glue 4, and tail glue 4 height less than or equal to cover plate 2 height.The setting of tail glue 4 can play a fixation to optical fiber 3
Effect, when optical fiber 3 is subsequently ground and used, can combine guarantee optical fiber 3 position constant together with cover plate 2；Tail
The height of glue 4 is the stability for ensureing tail glue 4 less than or equal to the height of cover plate 2, if the height of tail glue 4 is higher than cover plate 2
Height, easily because scratching in using and processing causes tail glue 4 to come off, so as to greatly shorten the service life of tail glue 4.
In the present invention, it is not limited to aid in fixing optical fiber 3 using tail glue 4 herein, other fixed structures can also be used, as long as energy
Enough realize the good fixed of optical fiber 3.
In the present embodiment, the length of condensing body 31 is 0.15mm to 0.25mm.In the present invention, condensing body 31 is poly-
Optical flat 311 and the assembly of arc sphere 312 that the one end of body of light 31 processes, its length have for 0.15mm to 0.25mm
Processing and attrition process are fused to optical fiber 3 beneficial to processing equipment, while being easy to actually used.
In the present embodiment, the intersection of substrate leading portion 11 and base plate rear section 12 is provided with excessive inclined-plane 13.Excessive inclined-plane 13
Setting be able to ensure that the stress that optical fiber 3 is subject at excessive inclined-plane 13 is smaller, improve product reliability and be made it is qualified
Rate, in addition, in actual use, the setting on excessive inclined-plane 13 can also be easy to accommodate tail glue 4 or other fixing devices, make
Optical fiber 3 is using more stable with process.
In the present embodiment, upper level of the bottom surface of each V-shaped groove with base plate rear section 12 is consistent.Such setting
After ensure that optical fiber 3 is arranged on V-shaped groove, it is highly consistent substantially with base plate rear section 12, on the one hand can so prevent
The presence of the gradient damages optic fibre force, on the other hand can reduce the angle of the smooth curved way of optical fiber 3, the more conducively biography of optical signal
It is defeated.In the present invention, the floor height of V-shaped groove can also be slightly above the height or slightly below base plate rear section 12 of base plate rear section 12
Height.
Refer to Fig. 4, to achieve these goals, present invention also offers it is a kind of for VSCEL or PIN arrays coupling
The manufacture method of hemisphere GRIN Lens fiber array, the manufacture method is comprised the following steps：
Step S1, substrate processing：A slope is processed on substrate, substrate is divided into substrate leading portion and base plate rear section by slope,
Again multiple V-shaped grooves being adapted with optical fiber shape size are opened up in the upper surface of substrate leading portion；
Step S2, condensing body welding：In one section of condensing body of the equal welding in one end of every optical fiber, every section of length and size of condensing body
It is consistent；
Step S3, condensing body are fused：Fuse to form sphere every one end of condensing body, and the sphere diameter and condensing body
Diameter it is identical；
Step S4, optical fiber assembling：The optical fiber of the good condensing body of every welding is placed in V-shaped groove corresponding on substrate, and will
One end that welding has condensing body sphere forward extends out from substrate leading portion, and keeps the length that every optical fiber stretches out consistent, finally will
Cover plate is fixed on the upper surface of substrate leading portion to fix optical fiber, constitutes fiber array；
Step S5, condensing body grinding：One end that the condensing body that every assembles is machined with sphere is ground, by the upper of sphere
Hemisphere face grinds to form can be with the optical flat of reflected light signal.
In the present embodiment, upper level of the bottom surface of each V-shaped groove with base plate rear section is consistent in step sl.
In the present embodiment, a diameter of 0.15mm to 0.25mm of the sphere for coming is fused in step S2.
In the present embodiment, step S3 is also coated including tail glue：Covered on every optical fiber between cover plate and base plate rear section
Have the tail glue for fixing and protecting optical fiber, and tail glue height of the height less than or equal to cover plate.
In the present embodiment, optical flat and substrate bottom surface are in 30 ° to 60 ° of angle in step S4.
Advantage of the invention is that：
1st, the fiber array that the present invention is provided, has one section of optically focused with self-focusing function by one end welding of every optical fiber
Body, then optical flat and arc sphere are processed on the end face of condensing body, the cooperation of optical flat and arc sphere can be same
The advantage of Shi Shixian lens light gatherings and optical flat reflected light, while condensing body self-focusing effect in itself can also strengthen optical signal
Reception and ability of aggregation, substantially reduced compared to existing utilization separate lenses and optical flat work in combination its cost, separately
The outer tolerance that it is also added significantly to fiber array, its scope is bigger when coupling adjustment is carried out to optical fiber, so as to reduce
The difficulty of coupling and increased the efficiency of coupling；
2nd, one end of every light of the invention processes condensing body, and wherein condensing body optical flat is with the angle of substrate bottom surface
30 ° to 60 ° can realize well optical signal be irradiated on optical flat after total reflection, make optical flat in no plated film
In the case of, can well realize the total reflection of optical signal by the reflection of angle.
3rd, the condensing body and optical fiber in the present invention are integral type structure, and its optically focused angle etc. need not be adjusted additionally, can
It is high by property, it is mounted directly optical fiber and processes the i.e. achievable high-precision light path coupling of condensing body, improve coupling efficiency.
Disclosed above is only several specific embodiments of the invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection scope of the present invention.
Claims (10)
1. it is a kind of for VSCEL or PIN arrays coupling hemisphere GRIN Lens fiber array, it is characterised in that including substrate,
Cover plate and plurality of optical fibers, the substrate include substrate leading portion and base plate rear section, and the substrate leading portion upper surface is higher than the base
Plate back segment upper surface, the substrate leading portion upper surface be provided with the one-to-one V-shaped groove of optical fiber, every optical fiber be arranged at
In its corresponding V-shaped groove, and every optical fiber forward extends out welding on rear its end face and has one section with self-focusing from substrate leading portion
The condensing body of effect, the cover plate is arranged on substrate leading portion, and cover plate encloses the accommodating of fixed optical fiber with each V-shaped groove
Space；The condensing body includes with substrate bottom surface in the optical flat of 30-60 ° of angle and is connected optical flat and condensing body bottom surface
Arc sphere；The radius of curvature of the arc sphere is 75-125um, and external optical signal passes through condensing body self-focusing, curve
Enter the inside of optical fibre after face optically focused and optical flat reflection.
2. the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 1, it is special
Levy and be, the tail glue for fixing and protecting optical fiber, and the tail are coated with the optical fiber between the cover plate and base plate rear section
Height of the height of glue less than or equal to cover plate.
3. the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 1, it is special
Levy and be, the length of the condensing body is 0.15mm to 0.25mm.
4. the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 1, it is special
Levy and be, the intersection of the substrate leading portion and base plate rear section is provided with excessive inclined-plane.
5. the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 1, it is special
Levy and be, the upper level of the bottom surface of each V-shaped groove with base plate rear section is consistent.
6. the manufacture method of the hemisphere GRIN Lens fiber array of VSCEL or PIN arrays coupling is used for, it is characterised in that bag
Include following steps：
Step 1, substrate processing：A slope is processed on substrate, substrate is divided into substrate leading portion and base plate rear section by slope, then
Multiple V-shaped grooves being adapted with optical fiber shape size are opened up in the upper surface of substrate leading portion；
Step 2, condensing body welding：In one section of condensing body of the equal welding in one end of every optical fiber, every section of length and size of condensing body
It is consistent；
Step 3, condensing body are fused：Fuse to form sphere every one end of condensing body, and the sphere diameter and condensing body
Diameter it is identical；
Step 4, optical fiber assembling：The optical fiber of the good condensing body of every welding is placed in V-shaped groove corresponding on substrate, and will be molten
The one end for being connected to condensing body sphere forward extends out from substrate leading portion, and keeps the length that every optical fiber stretches out consistent, finally will lid
Plate is fixed on the upper surface of substrate leading portion to fix optical fiber, constitutes fiber array；
Step 5, condensing body grinding：One end that the condensing body that every assembles is machined with sphere is ground, by the upper of sphere
Hemisphere face grinds to form can be with the optical flat of reflected light signal.
7. the manufacture of the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 6
Method, it is characterised in that upper level of the bottom surface of each V-shaped groove with base plate rear section is consistent in step 1.
8. the manufacture of the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 6
Method, it is characterised in that a diameter of 0.15mm to 0.25mm of the sphere for coming is fused in step 2.
9. the manufacture of the hemisphere GRIN Lens fiber array for the coupling of VSCEL or PIN arrays according to claim 6
Method, it is characterised in that step 3 is also coated including tail glue：Be coated with every optical fiber between cover plate and base plate rear section for
Fixed and protection optical fiber tail glue, and the tail glue height of the height less than or equal to cover plate.
10. it is according to claim 6 for VSCEL or PIN arrays coupling hemisphere GRIN Lens fiber array system
Make method, it is characterised in that optical flat and substrate bottom surface are in 30 ° to 60 ° of angle in step 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084501.6A CN106908915A (en) | 2017-02-16 | 2017-02-16 | For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays |
| PCT/CN2017/089071 WO2018149069A1 (en) | 2017-02-16 | 2017-06-19 | Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084501.6A CN106908915A (en) | 2017-02-16 | 2017-02-16 | For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908915A true CN106908915A (en) | 2017-06-30 |
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ID=59208457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710084501.6A Pending CN106908915A (en) | 2017-02-16 | 2017-02-16 | For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106908915A (en) |
| WO (1) | WO2018149069A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060067620A1 (en) * | 2004-09-29 | 2006-03-30 | The General Hospital Corporation | System and method for optical coherence imaging |
| CN205404901U (en) * | 2016-03-07 | 2016-07-27 | 深圳市鹏大光电技术有限公司 | A fiber array that be used for with VSCEL or coupling of PIN array |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100906287B1 (en) * | 2007-08-22 | 2009-07-06 | 광주과학기술원 | Optical Fiber Probe for Side Imaging and Method of Manufacturing the same |
| CN101520530B (en) * | 2009-03-26 | 2012-07-18 | 武汉电信器件有限公司 | Novel sideward coupling optical fiber component and processing method thereof |
| US9435959B2 (en) * | 2012-04-26 | 2016-09-06 | Acacia Communications, Inc. | Coupling of fiber optics to planar grating couplers |
| CN204028413U (en) * | 2014-09-05 | 2014-12-17 | 曾振林 | A kind of novel optical fiber side coupled fiber array |
| CN105372770A (en) * | 2015-12-14 | 2016-03-02 | 华中科技大学 | Optical fiber coupling module |
-
2017
- 2017-02-16 CN CN201710084501.6A patent/CN106908915A/en active Pending
- 2017-06-19 WO PCT/CN2017/089071 patent/WO2018149069A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060067620A1 (en) * | 2004-09-29 | 2006-03-30 | The General Hospital Corporation | System and method for optical coherence imaging |
| CN205404901U (en) * | 2016-03-07 | 2016-07-27 | 深圳市鹏大光电技术有限公司 | A fiber array that be used for with VSCEL or coupling of PIN array |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018149069A1 (en) | 2018-08-23 |
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Application publication date: 20170630 |