CN107632340A - A kind of lightguide cross unit - Google Patents
A kind of lightguide cross unit Download PDFInfo
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- CN107632340A CN107632340A CN201610573030.0A CN201610573030A CN107632340A CN 107632340 A CN107632340 A CN 107632340A CN 201610573030 A CN201610573030 A CN 201610573030A CN 107632340 A CN107632340 A CN 107632340A
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- layer
- cross unit
- lightguide
- integument
- light waveguide
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Abstract
The present invention discloses a kind of lightguide cross unit, the lightguide cross unit is formed by upper metal level, prepreg, upper integument, light waveguide-layer, lower integument, lower metal layer pressing successively from top to bottom, wherein, the upper metal level is made up of several sheet metals or metal wire for being separated by distance to a declared goal, the lower metal layer is made up of several sheet metals or metal wire for being separated by distance to a declared goal, and the light waveguide-layer includes several cross one another fiber waveguides at grade.Light network density can be substantially improved in the present invention, increase transmission line, while realize the miniaturization of device and equipment.
Description
Technical field
The present invention relates to optical waveguide interconnection design field, more particularly to a kind of lightguide cross unit.
Background technology
With the continuous lifting of computer system, communication system data transmission rate, frequency, tradition, which is electrically interconnected, faces its hair
Bottleneck is opened up, subject matter has：(1) scatter, reflect, decay and signal intensity with frequency fluctuation, can make high speed signal distortion,
Cause Bandwidth-Constrained；(2) as wiring density increases, line signal is highly susceptible to the electromagnetic interference from veneer and machine frame
(Electromagnetic Interference, EMI).
Optical waveguide interconnection is to realize the optimal solution that Tbit/s magnitudes interconnect at a high speed, and its technology realizes to be typically by light
Waveguide is integrated into PCB (Printed Circuit Board, printed circuit board) and photoelectricity printed board (Optical- is made
Electronic Printed Circuit Board, OE-PCB).Optical waveguide interconnection substitution is electrically interconnected, and has obvious advantage,
It can easily realize and keep good signal integrity.The advantages of optical waveguide interconnection, includes：(1) photon neutral, it is not present
Coulomb force effect between electronics, has good space compatible, therefore significantly subtract without electromagnetic interference problem in signalling channel
Small-signal crosstalk, higher in parallel density is realized, reduce the size of device and equipment；(2) the system speed of response is fast, single-pass
Road transmission rate is up to Tbps magnitudes, and the unit storage density of photon is high, and its memory capacity is in magnitude.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
The content of the invention
The present invention provides a kind of lightguide cross unit, it is intended to solve above mentioned problem present in traditional electrical interconnection mode,
To improve interconnection density, increase transmission channel, reduce the physical dimension of device and equipment.
To achieve the above object, the present invention provides a kind of lightguide cross unit, and the lightguide cross unit is from up to
Under successively by upper metal level, prepreg, upper integument, light waveguide-layer, lower integument, lower metal layer pressing form, wherein, institute
State metal level to be made up of several sheet metals or metal wire for being separated by distance to a declared goal, the lower metal layer is by being separated by distance to a declared goal
Several sheet metals or metal wire form, the light waveguide-layer includes several cross one another light waves at grade
Lead.
Preferably, the angle in the light waveguide-layer between cross one another fiber waveguide is more than or equal to 70 degree and is less than
Or equal to 180 degree.
Preferably, the upper metal level and sheet metal in the lower metal layer or the material of metal wire are copper foil.
Preferably, in the light waveguide-layer, lightguide cross cabling is formed by etching.
Preferably, the prepreg is FR-4 prepregs.
Preferably, the upper integument, the lower integument, the light waveguide-layer are formed by polymerizable material, described
The refractive index of upper integument is identical with the refractive index of the lower integument, and the refractive index of the light waveguide-layer is more than the upper parcel
The refractive index of layer.
Preferably, the lightguide cross unit is that photoelectricity prints harden structure.
Lightguide cross unit proposed by the present invention, cross wiring will not be produced and interfered with each other in same light waveguide-layer,
Also short circuit, and photon neutral will not be produced, the effect of the Coulomb force between electronics is also just not present, there is good space
Compatibility, the problem of in signalling channel without electromagnetic interference, light network density can be substantially improved, increase transmission line, simultaneously
Realize the miniaturization of device and equipment.
Brief description of the drawings
Fig. 1 is the part section structural representation of lightguide cross unit first embodiment of the present invention；
Fig. 2 is enlarged partial top structural representation of being cut into slices in lightguide cross unit of the present invention；
Fig. 3 is global overlooking the structure diagram of being cut into slices in lightguide cross unit second embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of lightguide cross unit, as shown in figure 1, the lightguide cross unit is from top to bottom successively
Pressed and formed by upper metal level 1, prepreg 2, upper integument 3, light waveguide-layer 4, lower integument 5, lower metal layer 6, wherein, institute
Metal level 1 is stated to be made up of several sheet metals or metal wire for being separated by distance to a declared goal, the lower metal layer 6 by be separated by specify away from
From several sheet metals or metal wire form, the light waveguide-layer 4 includes several cross one another light at grade
Waveguide.Fiber waveguide in the present embodiment is made up of waveguide core 7.
Further, the upper metal level 1 and sheet metal in the lower metal layer 6 or the material of metal wire are copper foil.
The main function of the upper metal level 1 and the lower metal layer 6 is that power supply is through-flow and electric signal transmission for carrying.
Further, in the light waveguide-layer 4, lightguide cross cabling is formed by etching.
Further, the prepreg 2 is FR-4 prepregs.FR-4 prepregs are a kind of epoxy resin and glass
Fiber is by the processed grains prepreg 2 become after B states (semisolid) of A states (liquid).
Further, the upper integument 3, the lower integument 5, the light waveguide-layer 4 are formed by polymerizable material,
The refractive index of the upper integument 3 is identical with the refractive index of the lower integument 5, and the refractive index of the light waveguide-layer 4 is more than institute
State the refractive index of integument 3.Because the refractive index of the upper integument 3 is identical with the refractive index of the lower integument 5, and institute
The refractive index for stating light waveguide-layer 4 is more than the refractive index of the upper integument 3, thus, the refractive index of the light waveguide-layer 4 also greater than
The refractive index of the lower integument 5.
Further, the lightguide cross unit is that photoelectricity prints harden structure.Wherein, can be passed in light waveguide-layer 4
Defeated high rate optical signal, being capable of transmitting telecommunication number or Power Support in upper metal level 1 or lower metal layer 6.
Fiber waveguide in the light waveguide-layer 4, it can be represented with waveguide core 7, such as the waveguide core 9 and light wave in Fig. 2
Core 10 (waveguide core 9 and two examples that waveguide core 10 is waveguide core 7) is led, is intersected at grade without depositing
Disturbing, can solve the problem that the problem of veneer is highly dense.
Lightguide cross unit proposed by the present invention, cross wiring, which will not produce, in same light waveguide-layer 4 interferes with each other,
Also short circuit, and photon neutral will not be produced, the effect of the Coulomb force between electronics is also just not present, there is good space
Compatibility, the problem of in signalling channel without electromagnetic interference, light network density can be substantially improved, increase transmission line, simultaneously
Realize the miniaturization of device and equipment.
Further, lightguide cross unit second embodiment of the present invention is proposed based on above-mentioned first embodiment, in this reality
Apply in example, the angle in the light waveguide-layer 4 between cross one another fiber waveguide is more than or equal to 70 degree and is less than or equal to
180 degree.
In the light waveguide-layer 4, the angular range between cross one another fiber waveguide is 0-180 degree, but lightguide cross
Loss can be increased, the smaller then crossover loss of intersecting angle is bigger.Reference picture 2, waveguide core 9 and waveguide core 10 can be square
Structure, because waveguide core 9 with waveguide core 10 is intersected in same light waveguide-layer 4, i.e., two waveguide cores are same
In one plane, and the loss of the smaller lightguide cross of lightguide cross angle is bigger, and therefore, the present embodiment passes through many experiments
Analysis, choose lightguide cross angle and be more than or equal to 70 degree and be less than or equal to 180 degree, crossover loss control can be made to exist
Within 0.07dB/cross, so as to provide a kind of low-loss and the preferred scheme of light network density can be improved again.Such as Fig. 3 institutes
Show, Fig. 3 is the section overall situation overlooking structure figure for the lightguide cross unit for including multiple cross one another fiber waveguides.
Lightguide cross unit proposed by the present invention, the fiber waveguide in same light waveguide-layer 4, cross one another angle are
More than or equal to 70 degree and it is less than or equal to 180 degree, constitutes optimal optical signal intersecting angle, using the teaching of the invention it is possible to provide there is minimum damage
Consumption, highdensity fiber waveguide transmission channel.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (7)
- A kind of 1. lightguide cross unit, it is characterised in that the lightguide cross unit from top to bottom successively by upper metal level, Prepreg, upper integument, light waveguide-layer, lower integument, lower metal layer pressing form, wherein, the upper metal level is by being separated by Several sheet metals or metal wire of distance to a declared goal are formed, the lower metal layer by be separated by distance to a declared goal several sheet metals or Metal wire is formed, and the light waveguide-layer includes several cross one another fiber waveguides at grade.
- 2. lightguide cross unit as claimed in claim 1, it is characterised in that cross one another light wave in the light waveguide-layer Angle between leading is more than or equal to 70 degree and is less than or equal to 180 degree.
- 3. lightguide cross unit as claimed in claim 1 or 2, it is characterised in that the upper metal level and the lower metal The material of sheet metal or metal wire in layer is copper foil.
- 4. lightguide cross unit as claimed in claim 1 or 2, it is characterised in that in the light waveguide-layer, lightguide cross Cabling is formed by etching.
- 5. lightguide cross unit as claimed in claim 1 or 2, it is characterised in that the prepreg is FR-4 semi-solid preparations Piece.
- 6. lightguide cross unit as claimed in claim 1 or 2, it is characterised in that the upper integument, the lower parcel Layer, the light waveguide-layer are formed by polymerizable material, the refractive index of the upper integument and the refractive index of the lower integument Identical, the refractive index of the light waveguide-layer is more than the refractive index of the upper integument.
- 7. lightguide cross unit as claimed in claim 1 or 2, it is characterised in that the lightguide cross unit is photoelectricity Print harden structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573030.0A CN107632340A (en) | 2016-07-19 | 2016-07-19 | A kind of lightguide cross unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573030.0A CN107632340A (en) | 2016-07-19 | 2016-07-19 | A kind of lightguide cross unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107632340A true CN107632340A (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610573030.0A Pending CN107632340A (en) | 2016-07-19 | 2016-07-19 | A kind of lightguide cross unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134301A1 (en) * | 2018-12-27 | 2020-07-02 | 中兴通讯股份有限公司 | Circuit board, manufacturing method and electronic device |
| CN112241042A (en) * | 2020-11-10 | 2021-01-19 | 桂林电子科技大学 | Low-crosstalk intersected polymer micro-nano optical fiber |
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| CN1534320A (en) * | 2003-03-27 | 2004-10-06 | Ѷ���Ƽ���˾ | Cross loss reduced light guide device |
| CN1656401A (en) * | 2002-05-28 | 2005-08-17 | 松下电工株式会社 | Material for substrate mounting optical circuit-electric circuit mixedly and substrate mounting optical circuit-electric circuit mixedly |
| CN101287330A (en) * | 2006-12-31 | 2008-10-15 | 罗门哈斯电子材料有限公司 | Methods of forming printed circuit boards having embedded optical waveguides |
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| CN102144179A (en) * | 2008-09-04 | 2011-08-03 | 惠普开发有限公司 | Dielectric waveguide intersection with reduced losses |
| CN102918437A (en) * | 2010-06-30 | 2013-02-06 | 国际商业机器公司 | Design for achieving low loss in intersecting region of optical waveguide |
| CN104391353A (en) * | 2014-11-21 | 2015-03-04 | 广西智通节能环保科技有限公司 | Novel optical switch device |
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| CN1656401A (en) * | 2002-05-28 | 2005-08-17 | 松下电工株式会社 | Material for substrate mounting optical circuit-electric circuit mixedly and substrate mounting optical circuit-electric circuit mixedly |
| CN1534320A (en) * | 2003-03-27 | 2004-10-06 | Ѷ���Ƽ���˾ | Cross loss reduced light guide device |
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| CN102144179A (en) * | 2008-09-04 | 2011-08-03 | 惠普开发有限公司 | Dielectric waveguide intersection with reduced losses |
| CN101808470A (en) * | 2010-03-02 | 2010-08-18 | 上海美维科技有限公司 | Method for manufacturing printed circuit board with optical function |
| CN102918437A (en) * | 2010-06-30 | 2013-02-06 | 国际商业机器公司 | Design for achieving low loss in intersecting region of optical waveguide |
| CN104391353A (en) * | 2014-11-21 | 2015-03-04 | 广西智通节能环保科技有限公司 | Novel optical switch device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134301A1 (en) * | 2018-12-27 | 2020-07-02 | 中兴通讯股份有限公司 | Circuit board, manufacturing method and electronic device |
| CN112241042A (en) * | 2020-11-10 | 2021-01-19 | 桂林电子科技大学 | Low-crosstalk intersected polymer micro-nano optical fiber |
| CN112241042B (en) * | 2020-11-10 | 2023-08-15 | 桂林电子科技大学 | Low-crosstalk cross polymer micro-nano optical fiber |
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Application publication date: 20180126 |