CN105116499A - Parallel optical module based on multi-mode planar optical waveguide coupling - Google Patents
Parallel optical module based on multi-mode planar optical waveguide coupling Download PDFInfo
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- CN105116499A CN105116499A CN201510528260.0A CN201510528260A CN105116499A CN 105116499 A CN105116499 A CN 105116499A CN 201510528260 A CN201510528260 A CN 201510528260A CN 105116499 A CN105116499 A CN 105116499A
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- waveguide
- multimode
- array
- substrate
- multimode waveguide
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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
- G02B6/4201—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
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—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
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
Abstract
The invention discloses a parallel optical module based on multi-mode planar optical waveguide coupling. The parallel optical module comprises a coupling structure, the coupling structure comprises a substrate, a waveguide cover plate, a multi-mode optical fiber array, and an upper clamp and a lower clamp used for fixing the multi-mode optical fiber array, the substrate is provided with a multi-mode waveguide arranged at intervals, an inclination angle of 45 degrees is cut on a first end surface of the substrate, an end part of the multi-mode waveguide is processed at an angle of 45 degrees, and the waveguide cover plate covers the top surface of the multi-mode waveguide. According to the parallel optical module, the inclination angle of 45 degrees is cut on the substrate with the multi-mode waveguide, the end part of the multi-mode waveguide is processed at the angle of 45 degrees, the cutting technology of the substrate is mature so that large-scale production can be easily realized, and the technical problem of difficult control of the grinding quality and coupling efficiency of optical fibers by the adoption of direct coupling is solved.
Description
Technical field
The present invention relates to optoelectronic integrated technology field, particularly relate to a kind of parallel optical module based on the coupling of multimode planar optical waveguide.
Background technology
Along with the increase of message capacity, the interconnection between chip and chip becomes more and more important.Optical interconnection has large distance bandwidth product, low-loss, highdensity advantage, can meet the communication needs of large high speed, high power capacity.Based on the transmission system of multimode optical fiber, there is larger coupling tolerances, reduce encapsulation difficulty and cost, thus be widely used.The photonic device that current and multimode optical fiber is corresponding is VCSEL (VerticalCavitySurfaceEmittingLaser, vertical cavity surface emitting laser) and PIN array.Along with the development of technology, short wavelength is as more and more faster in VCSEL and the PIN type PD speed of 850nm, and long wavelength VCSEL performance is improved simultaneously.How to solve the coupling of photonic device and optical fiber or waveguide, become compact, highly reliable, one of the significant challenge of the optoelectronic package of low cost, based on the feature of VCSEL Vertical Launch, have much for multimode transmissions coupling scheme.
The first is: indirect coupling, adds optical element as lens between laser optical and optical fiber or waveguide, improves coupling efficiency.But, because VCSEL with PIN array adopts spun gold pressure welding to be connected with circuit, adopt lens to improve the coupling of VCSEL and PIN array and optical fiber or waveguide, but do not solve light path 90 ° of problems turned to, add packaging cost simultaneously.
The second is: direct-coupling, and laser optical is coupled directly into into optical fiber or waveguide, grinds reflection angle at 45 ° by fiber array, VCSEL and PIN array and fiber array coupling, the light path realizing 90 ° turns to output.But during optical fiber lapping, the Angle ambiguity between optical fiber and optical fiber, the glue amount of substrate bonding, the thickness decay etc. of optical fiber thin layer, determines the quality of optical fiber lapping and the efficiency of optically-coupled, and simultaneous grinding method is difficult to the efficiency improving large-scale production.
Summary of the invention
The application provides a kind of parallel optical module based on the coupling of multimode planar optical waveguide, solve in prior art and adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling.
The application provides a kind of parallel optical module based on the coupling of multimode planar optical waveguide, and described parallel optical module comprises:
Coupled structure, comprising: substrate, is manufactured with multimode waveguide, and described multimode waveguide interval is arranged, and the first end face of described substrate is cut with the inclination angle of 45 degree, makes the end of described multimode waveguide be processed into the reflection configuration of 45 degree; Waveguide cover plate, is covered on the end face of described multimode waveguide; Multimode fiber array; For upper fixture and the lower clamp of fixing described multimode fiber array;
Bracing or strutting arrangement, comprises back-up block, is fixed on described back-up block and spaced laser instrument bearing and circuit bearing;
Laser instrument, be arranged on described laser instrument bearing, described laser instrument is the paster of VCSEL array or PIN array;
Circuit, is arranged on described circuit bearing;
Welding wire, connects described laser instrument and described circuit;
Wherein, described waveguide cover plate is fixed on described back-up block, and the end face of the end of described multimode waveguide is aimed at the sensitive surface of the light-emitting area of VCSEL array or PIN array.
Preferably, described substrate is that a kind of material in glass, lithium niobate, plastics is made.
Preferably, the material of described cover plate is identical with the material of described substrate.
Preferably, the end face metal-plated membrane of the end of multimode waveguide strengthens reflection.
Preferably, described back-up block, described laser instrument bearing and described circuit bearing are made up of metal, glass, silicon, pottery a kind of material wherein.
The application's beneficial effect is as follows:
The inclination angle of the application by the substrate cutting or grinding with multimode waveguide there being 45 degree, the end of described multimode waveguide is made to be processed into 45 degree, because substrate cutting or grinding have certain advantage, technical maturity, therefore, it is possible to large-scale production, be easy to realize, solve in prior art and adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling.
In addition, by adopting the multimode waveguide with the end face of 45 degree, multiple parallel waveguide is integrated in substrate, with VCSEL array and PIN array couples easier, avoid VCSEL array and PIN array when being coupled with the end face parallel optical fibre with 45 °, the consistance impact of the distance between optical fiber and angle.The multimode waveguide adopted again, makes the distance of waveguide distance top covering very little, reduces the loss of coupling and waveguide covering.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the structural representation of a kind of parallel optical module based on the coupling of multimode planar optical waveguide of the application's better embodiment;
Fig. 2 is the structural representation of the coupled structure of parallel optical module in Fig. 1;
Fig. 3 is the structural representation of parallel optical module except coupled structure in Fig. 1.
Embodiment
The embodiment of the present application is by providing a kind of parallel optical module based on the coupling of multimode planar optical waveguide, solve in prior art and adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling.
Technical scheme in the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
A kind of parallel optical module based on the coupling of multimode planar optical waveguide, described parallel optical module comprises: coupled structure, comprise: substrate, be manufactured with multimode waveguide, described multimode waveguide interval is arranged, first end face of described substrate is cut with the inclination angle of 45 degree, makes the end of described multimode waveguide be processed into the reflection configuration of 45 degree; Waveguide cover plate, is covered on the end face of described multimode waveguide; Multimode fiber array; For upper fixture and the lower clamp of fixing described multimode fiber array; Bracing or strutting arrangement, comprises back-up block, is fixed on described back-up block and spaced laser instrument bearing and circuit bearing; Laser instrument, be arranged on described laser instrument bearing, described laser instrument is the paster of VCSEL array or PIN array; Circuit, is arranged on described circuit bearing; Welding wire, connects described laser instrument and described circuit; Wherein, described waveguide cover plate is fixed on described back-up block, and the end face of the end of described multimode waveguide is aimed at the sensitive surface of the light-emitting area of VCSEL array or PIN array.
The inclination angle of the application by the substrate cutting or grinding with multimode waveguide there being 45 degree, the end of described multimode waveguide is made to be processed into the reflection configuration of 45 degree, due to the technical maturity that substrate is cut or ground, therefore, it is possible to large-scale production, be easy to realize, solve in prior art and adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Embodiment one
Adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost to solve in prior art, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling, the application provides a kind of parallel optical module based on the coupling of multimode planar optical waveguide.As shown in Figure 1, described parallel optical module comprises coupled structure, bracing or strutting arrangement, laser instrument 240, circuit 250 and welding wire 260.
As shown in Figure 2, described coupled structure comprise substrate 120, waveguide cover plate 130, multimode fiber array 140, for the upper fixture 150 of fixing described multimode fiber array 140 and lower clamp 160, and the joint 170 of optical fiber.Described substrate 120 is that a kind of material in glass, lithium niobate, plastics is made.Described substrate 120 is manufactured with multimode waveguide 110, and described multimode waveguide 110 interval is arranged.The spacing that spacing between described multimode waveguide 110 and the spacing between VCSEL lightening hole and PIN receive between unthreaded hole is consistent.One end face of described substrate 120 is cut with the inclination angle of 45 degree, makes the end of described multimode waveguide 110 be processed into the reflection configuration of 45 degree.In addition, in order to strengthen reflection, reflection can be strengthened by the end face metal-plated membrane in the end of multimode waveguide 110.
Described waveguide cover plate 130 is covered on the end face of described multimode waveguide 110, to protect described multimode waveguide 110, reduces the loss of waveguide.The afterbody of described multimode fiber array 140 is provided with connector 170.
As shown in Figure 3, bracing or strutting arrangement comprises back-up block 210, is fixed on described back-up block 210 and spaced laser instrument bearing 220 and circuit bearing 230.Described back-up block 210, described laser instrument bearing 220 and described circuit bearing 230 can be made up of materials such as metal, glass, silicon, potteries.
Described laser instrument 240 is arranged on described laser instrument bearing 220, and described laser instrument 240 can be the paster of VCSEL array or PIN array.Described circuit 250 is arranged on described circuit bearing 230, and described circuit 250 can be the paster of driving circuit or receiving circuit.Described welding wire 260 can be formed by spun gold pressure welding.Described welding wire 260 connects described laser instrument 240 and described circuit 250.
Described waveguide cover plate 130 is fixed on described back-up block 210, and 45 degree of end faces of the end of described multimode waveguide 110 are aimed at the light-emitting area of VCSEL array or the sensitive surface of PIN array, the i.e. light of the light-emitting area outgoing of VCSEL array, run into 45 degree of end faces, maximum the reflecting into into waveguide of luminous energy, thus ensure that coupling efficiency is maximum.The light that the sensitive surface of same PIN array accepts, runs into 45 degree of end faces, and the maximum reflection of luminous energy enters PIN detector, thus ensures that coupling efficiency is maximum.Aligning needs adjustment multimode 45 degree reflection end face and XYZ relative position between VCSEL, PIN, after finding maximum coupling efficiency position, and the position of fixing multimode lightguide cover plate and multimode lightguide (Fig. 2 device).
The inclination angle of the application by the substrate with multimode waveguide 1 being cut with 45 degree, the end of described multimode waveguide 1 is made to be processed into 45 degree, due to the technical maturity that substrate is cut or ground, therefore, it is possible to large-scale production, be easy to realize, solve in prior art and adopt indirect coupling can not solve light path 90 ° to turn to, add packaging cost, adopt quality and the coupling efficiency technical matters very rambunctious of optical fiber lapping during direct-coupling.
Multimode fiber array one section is coupled with multimode lightguide, and the other end can with optical conenctor, such as MT or MPO head, supports the pluggable of optics.Also the Optical Device Coupling of the other end of the structure of invention similar therewith can be selected.
In addition, by adopting the multimode waveguide 110 with the end face of 45 degree by the substrate 120 integrated for multiple parallel waveguide, with VCSEL array and PIN array couples easier, avoid VCSEL array and PIN array when being coupled with the end face parallel optical fibre with 45 °, the consistance impact of the distance between optical fiber and angle.The multimode waveguide 110 adopted, makes the distance of waveguide distance top covering very little, reduces the loss of coupling and waveguide covering.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1., based on a parallel optical module for multimode planar optical waveguide coupling, it is characterized in that, described parallel optical module comprises:
Coupled structure, comprising:
Substrate, is manufactured with multimode waveguide, and described multimode waveguide interval arranges identical with photonic device light-emitting area or sensitive surface spacing, and the first end face of described substrate is cut with the inclination angle of 45 degree, makes the end of described multimode waveguide be processed into the reflection configuration of 45 degree;
Waveguide cover plate, is covered on the end face of described multimode waveguide;
Multimode fiber array;
For upper fixture and the lower clamp of fixing described multimode fiber array;
Bracing or strutting arrangement, comprises back-up block, is fixed on described back-up block and spaced laser instrument bearing and circuit bearing;
Laser instrument, be arranged on described laser instrument bearing, described laser instrument is the paster of VCSEL array or PIN array;
Circuit, is arranged on described circuit bearing;
Welding wire, connects described laser instrument and described circuit;
Wherein, described waveguide cover plate is fixed on described back-up block, and the end face of the end of described multimode waveguide is aimed at the sensitive surface of the light-emitting area of VCSEL array or PIN array.
2. multimode waveguide array couples structure as claimed in claim 1, it is characterized in that, described substrate is that a kind of material in glass, lithium niobate, plastics is made.
3. multimode waveguide array couples structure as claimed in claim 1, it is characterized in that, the material of described cover plate is identical with the material of described substrate.
4. multimode waveguide array couples structure as claimed in claim 1, is characterized in that, the end face metal-plated membrane of the end of multimode waveguide strengthens reflection.
5. the multimode waveguide array couples structure as described in claim arbitrary in claim 1-4, is characterized in that, described back-up block, described laser instrument bearing and described circuit bearing are made up of metal, glass, silicon, pottery a kind of material wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528260.0A CN105116499A (en) | 2015-08-26 | 2015-08-26 | Parallel optical module based on multi-mode planar optical waveguide coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528260.0A CN105116499A (en) | 2015-08-26 | 2015-08-26 | Parallel optical module based on multi-mode planar optical waveguide coupling |
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| CN105116499A true CN105116499A (en) | 2015-12-02 |
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| CN201510528260.0A Pending CN105116499A (en) | 2015-08-26 | 2015-08-26 | Parallel optical module based on multi-mode planar optical waveguide coupling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372770A (en) * | 2015-12-14 | 2016-03-02 | 华中科技大学 | Optical fiber coupling module |
| CN106199860A (en) * | 2016-10-09 | 2016-12-07 | 华进半导体封装先导技术研发中心有限公司 | Optical coupling integrated morphology for multimode parallel optical interconnecting |
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| JPH1054928A (en) * | 1996-04-23 | 1998-02-24 | Robert Bosch Gmbh | Device for coupling optical transmission element or optical receiving element to optical waveguide |
| US5999670A (en) * | 1996-07-31 | 1999-12-07 | Nippon Telegraph And Telephone Corporation | Optical deflector, process for producing the same, and blade for use in production of optical deflector |
| CN2625916Y (en) * | 2003-05-23 | 2004-07-14 | 华中科技大学 | Parallel optical fibre array coupling assembly |
| JP2006010891A (en) * | 2004-06-24 | 2006-01-12 | Sony Corp | Optical coupler and its mounting structure |
| US20070183724A1 (en) * | 2006-02-07 | 2007-08-09 | Fuji Xerox Co., Ltd. | Optical connector, multi-chip module and manufacturing method of optical connector |
| CN101784932A (en) * | 2008-01-15 | 2010-07-21 | 欧姆龙株式会社 | Optical transmission module, electronic device and method for manufacturing optical transmission module |
| CN103744147A (en) * | 2014-01-07 | 2014-04-23 | 西南科技大学 | Active optical cable optical coupling device with high coupling efficiency |
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2015
- 2015-08-26 CN CN201510528260.0A patent/CN105116499A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1054928A (en) * | 1996-04-23 | 1998-02-24 | Robert Bosch Gmbh | Device for coupling optical transmission element or optical receiving element to optical waveguide |
| US5999670A (en) * | 1996-07-31 | 1999-12-07 | Nippon Telegraph And Telephone Corporation | Optical deflector, process for producing the same, and blade for use in production of optical deflector |
| CN2625916Y (en) * | 2003-05-23 | 2004-07-14 | 华中科技大学 | Parallel optical fibre array coupling assembly |
| JP2006010891A (en) * | 2004-06-24 | 2006-01-12 | Sony Corp | Optical coupler and its mounting structure |
| US20070183724A1 (en) * | 2006-02-07 | 2007-08-09 | Fuji Xerox Co., Ltd. | Optical connector, multi-chip module and manufacturing method of optical connector |
| CN101784932A (en) * | 2008-01-15 | 2010-07-21 | 欧姆龙株式会社 | Optical transmission module, electronic device and method for manufacturing optical transmission module |
| CN103744147A (en) * | 2014-01-07 | 2014-04-23 | 西南科技大学 | Active optical cable optical coupling device with high coupling efficiency |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372770A (en) * | 2015-12-14 | 2016-03-02 | 华中科技大学 | Optical fiber coupling module |
| CN106199860A (en) * | 2016-10-09 | 2016-12-07 | 华进半导体封装先导技术研发中心有限公司 | Optical coupling integrated morphology for multimode parallel optical interconnecting |
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Application publication date: 20151202 |