CN104898215B - Simple coupled parallel light transmit-receive engine used for interconnection between boards - Google Patents
Simple coupled parallel light transmit-receive engine used for interconnection between boards Download PDFInfo
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- CN104898215B CN104898215B CN201510351132.3A CN201510351132A CN104898215B CN 104898215 B CN104898215 B CN 104898215B CN 201510351132 A CN201510351132 A CN 201510351132A CN 104898215 B CN104898215 B CN 104898215B
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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
-
- 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
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4228—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to a simple coupled parallel light transmit-receive engine used for interconnection between boards. The simple coupled parallel light transmit-receive engine comprises a circuit board, a driver chip arranged on the circuit board, a trans-impedance amplifier chip and a silicon platform. The silicon platform is provided with a lens array, an optical fiber array, a vertical cavity surface laser array and a photoelectric detector array. A bench surface of the silicon platform is provided with eight 45-degree reflection inclined surfaces. The 45-degree reflection inclined surfaces enable light emitted by the vertical cavity surface laser array and light received by the photoelectric detector array to deflect by 90 degrees. Two PIN needles are arranged between the lens array and the optical fiber array. The PIN needles align the lens array with the optical fiber array. The invention provides the simple coupled parallel light transmit-receive engine suitable for interconnection between boards, the transverse length of the light transmit-receive engine on the circuit board is reduced, the high density of the light transmit-receive engine is realized, the structure is further miniaturized, and a basis is provided for the application of interconnection between boards.
Description
Technical field
The invention belongs to optical communication field, and in particular to a kind of easy coupling parallel light transmitting-receiving for interconnecting between plate is drawn
Hold up.
Background technology
In the last few years, the extensive growth of data transfer caused the demand of transmission bandwidth and speed is become increasingly to compel
Cut.Light network with its transmission capacity it is big, speed is high, noiseless, low-power consumption the advantages of the increasing green grass or young crops for being subject to people narrow, gesture
Electric interconnection must be replaced, become the main interconnection mode in future communications.It is with the proposition of interconnection technique between plate, two-forty, highly dense
Between the plate of degree interconnect photo engine research and development increasingly receive publicity, in addition, in order to realize couple high efficiency, save the time into
This, it is desirable to the method for coupling is tried one's best easy.
Be present the difficult defect of alignment in existing frequently-used parallel light transmitting-receiving engine, and can not realize in the horizontal direction small-sized
Change, it is impossible to efficient coupling, lose time.
The content of the invention
For solving above-mentioned technical problem, the invention provides a kind of easy coupling parallel light for being applicable to interconnect between plate draws
Hold up structure.It not only overcomes the problem of difficult alignment, and more miniaturization in the horizontal direction, is to receive and dispatch in high-speed light from now on
Application in component provides condition.
For reaching above-mentioned purpose, technical scheme is as follows：
A kind of easy coupling parallel light transmitting-receiving engine for interconnecting between plate, which includes：Circuit board, it is arranged on the circuit
Driver chip, trans-impedance amplifier chip and silicon platform on plate, the silicon platform are provided with lens arra, fiber array, hang down
Straight Cavity surface laser array and photodetector array, the table top of the silicon platform is provided with eight 45 ° of reflecting slants, described
90 ° of deflections of light that the light and photodetector array that 45 ° of reflecting slants send planar laser with vertical cavity array is received；It is described
Two PIN needles are provided between lens array and fiber array, and lens arra is aligned by the PIN needle with fiber array.
In one preferred embodiment of the present invention, further include, the lens arra is by silicon cover plate one and silicon cover plate two
It is fixed, some V grooves one are equipped with the silicon cover plate one and silicon cover plate two, the V grooves one of two silicon cover plates can be accommodated and fixed
The lens of the lens arra, the silicon cover plate one, silicon cover plate two form one with lens arra and combine A.
In one preferred embodiment of the present invention, further include, the fiber array is fixed by two pieces of silicon cover plates four, institute
State silicon cover plate four and be provided with some V grooves that can be accommodated and fix fiber array, two pieces of silicon cover plates four form one with fiber array
Individual combination B.
In one preferred embodiment of the present invention, further include, the PIN needle is arranged on the combination A's and combination B
Fixation is pushed down by silicon cover plate three in top, the PIN needle, and the PIN needle is aligned the combination A and combination B's.
In one preferred embodiment of the present invention, further include, the silicon cover plate one, silicon cover plate three and silicon cover plate four
The V grooves two that can be accommodated and fix PIN needle are equipped with the face of upper contact PIN needle.
In one preferred embodiment of the present invention, further include, light emitting portion is planar laser with vertical cavity array, is swashed
Light device sends laser, through 45 ° of reflecting slant reflections, is incident to lens arra after 90 ° of deflections, man-to-man Jing after lens are converged
Into spread fiber；Light receiver is divided into the fiber array, and the fiber array sends light, converges through the lens arra
Poly-, the lens arra is man-to-man through 45 ° of reflecting slants, and light reflexes to the photoelectricity by 45 ° of reflecting slants
The receipts unthreaded hole of detector array, the receipts unthreaded hole of the photodetector array complete light-receiving.
In one preferred embodiment of the present invention, further include, eight 45 ° of reflecting slants are arranged on the silicon and put down
On edge of table step surface.
The invention has the beneficial effects as follows:
One, the present invention are that a kind of simplicity suitable for interconnecting between plate couples parallel light engine arrangement, setting by PIN needle
Meter makes alignment easier, saves built-up time, improves efficiency.
Two, the present invention is that a kind of simplicity suitable for interconnecting between plate couples parallel light engine arrangement, reduces light transmitting-receiving
Engine lateral length on circuit boards, realizes the high density that light receives and dispatches engine, makes the structure more miniaturization, is mutual between plate
Connection application is laid a good foundation.
Description of the drawings
For the technical scheme being illustrated more clearly that in embodiment of the present invention technology, below will be in the description of embodiment technology
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Structural representations of the Fig. 2 for the silicon platform in Fig. 1.
Fig. 3 is part parallel optical transceiver module structural representation.
Structure enlarged diagrams of the Fig. 4 for Fig. 3 local.
Index paths of the Fig. 5 for parallel light transceiver component structure.
Wherein, 1- circuit boards, 2- trans-impedance amplifier chips, 3- driver chips, 4- silicon platforms, 5- photodetector battle arrays
Row, 6- planar laser with vertical cavity arrays, 7- lens arras, 8-PIN pins, 9- fiber arrays, 43-45 ° of reflecting slant, 101- silicon lids
Plate one, 102- silicon cover plate two, 11- silicon cover plate three, 12- silicon cover plate four, 13-V grooves one, 14-V grooves two, after 15- accommodates fiber array
The groove of end optical fiber.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment
As shown in figure 1, a kind of easy coupling parallel light transmitting-receiving engine for interconnecting between plate in the present embodiment, is disclosed, its
Including：Circuit board 1, driver chip 2, trans-impedance amplifier chip 3 and silicon platform 4, above-mentioned trans-impedance amplifier chip 2, driver
Chip 3 and silicon platform 4 are arranged in foregoing circuit plate 1, are provided with laser instrument and photodetector array in above-mentioned silicon platform 4.
Specifically, as shown in Fig. 2 being provided with lens arra 7 and fiber array 9, said lens array 7 beside above-mentioned silicon platform
It is close together with fiber array 9.The table top of above-mentioned silicon platform 4 is provided with planar laser with vertical cavity array 6 (VCSEL) and photoelectricity
Detector array 5 (PD), above-mentioned planar laser with vertical cavity array 6 and photodetector array 5 are positioned over by face-down bonding technique
The edge of silicon platform；The edge step of above-mentioned silicon platform 4 is provided with eight 45 ° of reflecting slants 43, and above-mentioned 45 ° of reflecting slants 43 make to hang down
90 ° of deflections of light that the light and photodetector array 5 that straight Cavity surface laser array 6 sends is received.
As shown in Figure 5, light emitting portion is planar laser with vertical cavity to the light path schematic diagram of above-mentioned parallel light transceiver component
The laser instrument of array 6 sends laser, reflects through 45 ° of inclined-planes 43, is incident to lens 7 after 90 ° of deflections, and man-to-man Jing lens converge
Propagate into fiber array 9 after poly-.Similar, light receiver is divided into fiber array 9, and fiber array 9 sends light, through above-mentioned
Lens array 7 is converged, and said lens array 7 is man-to-man through above-mentioned 45 ° of reflecting slants 43, and light is by above-mentioned 45 ° of reflecting slants 43
The receipts unthreaded hole of above-mentioned photodetector array 5 is reflexed to, the receipts unthreaded hole of above-mentioned photodetector array 5 completes light-receiving.
As shown in Fig. 1,3,4, parallel light transceiver component alignment for convenience, said lens array 7 and fiber array 9 it
Between be provided with two PIN needles 8, lens arra 7 is aligned by above-mentioned PIN needle 8 with fiber array 9.
Specifically, said lens array 7 is fixed by silicon cover plate 1 and silicon cover plate 2 102, i.e., said lens array 7 sets
Put between above-mentioned silicon cover plate 1 and silicon cover plate 2 102, form combination A.On above-mentioned silicon cover plate 1 and silicon cover plate 2 102
Some V grooves 1 are equipped with, the V grooves 1 of two silicon cover plates can be accommodated and fixed said lens array 7.
In the present embodiment, above-mentioned fiber array is multimode fiber array, i.e., above-mentioned multimode fiber array is by two pieces of silicon lids
Plate 4 12 is fixed, silicon cover plate 4 12 be provided with it is some can accommodate and fixed fiber array 9 V grooves, two pieces of silicon cover plates 4 12 with
Fiber array 9 forms combination B.As fibre diameter is 125um, two silicon cover plates are close to place, without spacing between them.Separately
Outward, the front end fibre diameter of fiber array 9 is 125um, and rear end fibre diameter is that 250um, for convenience dispensing and protection are different
The optical fiber of diameter connected component, digging a length on silicon cover plate 4 12 is used for placing this part fiber battle array more than the groove 15 of 3mm
Row, i.e. above-mentioned groove 15 are the grooves 15 for accommodating fiber array rear end optical fiber.
As shown in Figures 3 and 4, in order to lens arra 7 and fiber array 9 are preferably aligned, combining A and combining B's
Top adds two PIN needles 8, and PIN needle 8 to be fixed by silicon cover plate 1 and the combination of silicon cover plate 3 11, meanwhile, set by parameter
The V grooves 2 14 for putting silicon cover plate 3 11 are just tangent with the both sides of rear part PIN needle, and A is formed a whole with B.
Lens arra 7 and fiber array 9 are combined fixation with PIN needle 8, and then ensure that both X, the alignment of Y-direction
Precision, carries out active coupling with this entirety with VCSEL planar laser with vertical cavity battle array 6 and PD photodetector arrays 7.Meanwhile, Z
The alignment precision in direction is controlled by the Z-direction length of 45 ° of reflecting slants 43 in silicon platform 4.As shown in figure 5, VCSEL hangs down
Straight Cavity surface laser array 6 is positioned in silicon platform 4 using flip chip bonding, and laser instrument sends laser through 45 ° of slant reflections, makes to swash
The light that light device sends reaches lens front just past a suitable distance Jing after slant reflection.Hot spot is in man-to-man mode
It is corresponding with 7 position of lens arra, and man-to-man with multimode fiber array 9 coupled.Coupling Shi Mei roads rays pass through lens
Fiber array front end is converged at, and then enters fiber-optic transfer, complete light emitting portion.
The optical interface of above-mentioned fiber array adopts MT/MPO tail optical fibers, four tunnels to receive, and four tunnels are sent out, centre wavelength 850nm.When light by
When fiber array 8 sends, converge through lens arra 7, lens arra 7 with form one to one through 45 ° of reflecting slants 43, most
The receipts unthreaded hole of back reflection to light photodetector array 7, completes light receiving part.
One QFN of circuit part encapsulates the circuit board of (QFN encapsulation) and realizes, can draw whole light
The size Control held up is within 10*10mm.The trans-impedance amplifier chip 2 and driver chip 3 of detector are positioned over into circuit board 1
On, by silicon platform 4 arrange plain conductor by the trans-impedance amplifier chip 2 and driver chip 3 of detector respectively with they
Corresponding port is connected, then is connected with other circuit parts by circuit board, makes whole optical transceiver module work.
The present invention be it is a kind of couple parallel light engine arrangement suitable for the simplicity that interconnects between plate, by the easy light of PIN needle
The alignment of transmitting-receiving subassembly, makes alignment easier, saves built-up time, improves efficiency.
The present invention is that a kind of simplicity suitable for interconnecting between plate couples parallel light engine arrangement, reduces light transmitting-receiving engine and exists
Lateral length on circuit board, realizes the high density that light receives and dispatches engine, makes the structure more miniaturization, be interconnecting application between plate
Lay a good foundation.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (3)
1. a kind of easy coupling parallel light for interconnecting between plate receives and dispatches engine, and which includes：Circuit board, it is arranged on the circuit board
On driver chip, trans-impedance amplifier chip and silicon platform, the silicon platform is provided with lens arra, fiber array, vertical
Cavity surface laser array and photodetector array, the table top of the silicon platform are provided with eight 45 ° of reflecting slants, described 45 °
Reflecting slant makes 90 ° of deflections of light that the light that planar laser with vertical cavity array sends and photodetector array are received；Its feature exists
In, two PIN needles are provided between the lens arra and fiber array, lens arra is aligned by the PIN needle with fiber array；
The lens arra is fixed by silicon cover plate one and silicon cover plate two, is equipped with some V on the silicon cover plate one and silicon cover plate two
Groove one, the V grooves one of two silicon cover plates can be accommodated and fix the lens of the lens arra, the silicon cover plate one, silicon cover plate two
One is formed with lens arra and combines A；
The fiber array is fixed by two pieces of silicon cover plates four, and the silicon cover plate four is provided with some can receiving and fixed optical fiber array
The V grooves of row, two pieces of silicon cover plates four form one with fiber array and combine B；
The PIN needle is arranged on the top of the combination A and combination B, and the PIN needle is pushed down fixation, the PIN by silicon cover plate three
The combination A is aligned by pin with combination B；
It is equipped with the face for contacting PIN needle on the silicon cover plate one, silicon cover plate three and silicon cover plate four and can accommodates and fixed PIN
The V grooves two of pin.
2. a kind of easy coupling parallel light for interconnecting between plate according to claim 1 receives and dispatches engine, it is characterised in that
Light emitting portion is planar laser with vertical cavity array, and laser instrument sends laser, through 45 ° of reflecting slants reflections, is entered after 90 ° of deflections
Lens arra is incident upon, it is man-to-man to enter spread fiber Jing after lens are converged；Light receiver is divided into the fiber array, the light
Fibre array sends light, converges through the lens arra, and the light after the lens arra is converged is man-to-man through described
45 ° of reflecting slants, light are reflexed to the receipts unthreaded hole of the photodetector array, the photodetection by 45 ° of reflecting slants
The receipts unthreaded hole of device array completes light-receiving.
3. a kind of easy coupling parallel light for interconnecting between plate according to claim 1 receives and dispatches engine, it is characterised in that
Eight 45 ° of reflecting slants are arranged on the edge step face of the silicon platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351132.3A CN104898215B (en) | 2015-06-24 | 2015-06-24 | Simple coupled parallel light transmit-receive engine used for interconnection between boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351132.3A CN104898215B (en) | 2015-06-24 | 2015-06-24 | Simple coupled parallel light transmit-receive engine used for interconnection between boards |
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| Publication Number | Publication Date |
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| CN104898215A CN104898215A (en) | 2015-09-09 |
| CN104898215B true CN104898215B (en) | 2017-03-22 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205880285U (en) * | 2016-06-24 | 2017-01-11 | 上海坤腾光电科技有限公司 | Parallel fibre -optic transceiver modules |
| CN106405754B (en) * | 2016-11-25 | 2018-01-16 | 华进半导体封装先导技术研发中心有限公司 | A kind of structure stand of optical fiber module and preparation method thereof |
| CN108700718A (en) * | 2017-11-15 | 2018-10-23 | 索尔思光电（成都）有限公司 | Waveguide array module and the sub- device of light-receiving |
| CN110687641A (en) * | 2018-07-05 | 2020-01-14 | 上海瑞波电子科技有限公司 | Light engine with heat dissipation function |
| CN110261974B (en) * | 2019-07-05 | 2024-05-10 | 上海先方半导体有限公司 | Optical interconnection module and system comprising same |
| CN112684550A (en) * | 2020-12-29 | 2021-04-20 | 中电科技集团重庆声光电有限公司 | Micro-system packaging structure for photoelectric transceiving processing |
| CN113467016A (en) * | 2021-06-29 | 2021-10-01 | 武汉光迅科技股份有限公司 | Light receiving assembly and optical module |
| CN115343808B (en) * | 2021-06-29 | 2023-07-14 | 讯芸电子科技(中山)有限公司 | Optical module device |
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| JP2000200937A (en) * | 1999-01-06 | 2000-07-18 | Sumitomo Electric Ind Ltd | Optical parallel transmitter |
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| CN104898215A (en) | 2015-09-09 |
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