CN204719277U - A kind of fiber array coupling assembly of Novel injection molding structure - Google Patents
A kind of fiber array coupling assembly of Novel injection molding structure Download PDFInfo
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- CN204719277U CN204719277U CN201520490686.7U CN201520490686U CN204719277U CN 204719277 U CN204719277 U CN 204719277U CN 201520490686 U CN201520490686 U CN 201520490686U CN 204719277 U CN204719277 U CN 204719277U
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- laser instrument
- fiber array
- injection moulding
- moulding bar
- vcsel laser
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Abstract
The utility model relates to a kind of fiber array coupling assembly of Novel injection molding structure, comprise printed circuit board (PCB), printed circuit board (PCB) is provided with VCSEL laser instrument and fiber array module, the injection moulding bar parallel with VCSEL laser instrument is provided with directly over VCSEL laser instrument, on printed circuit board (PCB), the both sides of VCSEL laser instrument are fixed with for supporting and the supporting construction of fixing injection moulding bar respectively, fiber array module comprises FA head and parallel optical fibre array, FA head is fixing on a printed circuit, parallel optical fibre array stretches out directly over FA head to injection moulding bar from the side of FA head, and the parallel optical fibre array one end upper surface be positioned at above injection moulding bar is inclined end face.The fiber array coupling assembly of injection structure of the present utility model, realize VCSEL laser instrument by injection moulding bar to aim at and efficient coupling with fiber array, light is made to be coupled into fiber array efficiently, thus improve coupling efficiency and the optics tolerance of fiber array, the situation of laser instrument can be encountered when avoiding Direct couple, reduce cost simultaneously.
Description
Technical field
The utility model relates to technical field of optical fiber communication, particularly relates to a kind of fiber array coupling assembly of Novel injection molding structure.
Background technology
In recent years, due to the fast development of a group of planes, network operations system in optical communication and computer realm, message capacity is increased sharply, in this situation, Large Copacity is no longer unique target pursued, the speed issue of communication more and more receives the concern of people, and particularly in the system of ask for something high speed, the demand of Parallel Optical Communication is also increasing.Under powerful market-driven, emerge in multitude for novel active device various in message area and passive device.Multiplexing, planar waveguide chip, micro photo-electro-mechanical switch MEMS (MEMS (micro electro mechanical system)) chip etc. such as demultiplexing, beam splitter for surface-emission laser array VCSEL (Vertical-Cavity Surface-Emitting Laser, the Vcsel) chip in broadband high-speed field, light-receiving PIN (photodiode) chip, various uses are succeeded in developing in succession.When said chip will encapsulate and be made into use device, the optical-fiber array assembly of very high degree of precision must be had as the input and output coupling interface of chip, by the light-path of each in said chip, strictly aim at accurately with each optical fiber corresponding in optical-fiber array assembly, light signal could be inputted, export, be made into practical devices steady in a long-term.The encapsulation technology of above-mentioned device is the gordian technique of the superior optical characteristics guaranteeing device, and meanwhile, be also the operation of most labor intensive, it is highest portion/mono-in device cost.Particularly surface-emission laser array VCSEL chip, light-receiving PIN chip will be developed into transmitted in parallel and receiver module, need the parallel optical fiber array coupling componen element of higher coupling efficiency.
At present, surface-emission laser array VCSEL chip, the light-receiving PIN chip main path that is coupled with fiber array has two kinds, one is processed into one-dimension optical-fiber array end relative to shaft axis of optic fibre 45 ° of optical flats, each fibre core and parallel vertical cavity surface-emitting laser array chip each object of VCSEL of one-dimension optical-fiber array after processing or light-receiving detector array PIN or each picture dot of GaAs chip are aimed at one to one and carries out direct-coupling, see that number of patent application is the aligning coupled structure in 03128028.5 " parallel optical fiber array coupling componen element ".Another kind adds lens arra between laser array and fiber array, utilizes the feature of the convergence of lens arra laser array and fiber array to be aimed at respectively, be coupled like this, and have higher coupling efficiency.But by every root fiber end face of processing fiber array, make end face relative to shaft axis of optic fibre 45 ° of optical flats, this mode is owing to using the cylindrical focusing characteristic of light cylinder, and axially coupling tolerance is little, increases coupling difficulty; And scioptics array carries out this method of aiming at because the adjustment that lens arra is aimed at and observe very inconvenient, and the more more complicated of equipment, be unfavorable for integrated further.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of fiber array coupling assembly of Novel injection molding structure.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of fiber array coupling assembly of Novel injection molding structure, comprise printed circuit board (PCB), described printed circuit board (PCB) is provided with VCSEL laser instrument and fiber array module, the injection moulding bar parallel with described VCSEL laser instrument is provided with directly over described VCSEL laser instrument, on described printed circuit board (PCB), the both sides of VCSEL laser instrument are fixed with the supporting construction for supporting and fix described injection moulding bar respectively, described fiber array module comprises FA head and parallel optical fibre array, described FA head is fixing on the printed circuit board, described parallel optical fibre array stretches out directly over described FA head to described injection moulding bar from the side of described FA head, and the described parallel optical fibre array one end upper surface be positioned at directly over described injection moulding bar is inclined end face.
The beneficial effects of the utility model are: the fiber array coupling assembly of a kind of Novel injection molding structure of the present utility model, realize VCSEL laser instrument by injection moulding bar to aim at and efficient coupling with fiber array, light is made to be coupled into fiber array efficiently, thus improve coupling efficiency and the optics tolerance of fiber array, the situation of laser instrument can be encountered when avoiding Direct couple, reduce cost simultaneously.
On the basis of technique scheme, the utility model can also do following improvement:
Further: described injection moulding bar is semicylinder, and the curved surface of described injection moulding bar is arranged near described VCSEL laser instrument, the axial plane level of described injection moulding bar and arranging near described parallel optical fibre array.
The beneficial effect of above-mentioned further scheme is: be coupled with laser by parallel light array by semicylinder injection moulding bar, the light of such laser instrument to have compressed the hot spot of laser instrument from the vertical direction of plastic strip after have passed plastic strip, more luminous energy is allowed to enter fiber array, and then reduce the loss of light, improve coupling efficiency.
Further: two described supporting construction parallel interval are arranged, and the equal diameters of distance between two described supporting constructions and described injection moulding bar.
The beneficial effect of above-mentioned further scheme is: by the way can by the fixation of described injection moulding bar, each optical fiber in the laser that VCSEL laser instrument is sent and fiber array is strictly aimed at, and there will not be deviation to cause coupling efficiency to reduce in coupling process.
Further: the pitch angle of the inclined end face of described parallel optical fibre array is 45 °
Further: described FA head comprises upper substrate and infrabasal plate, the multifiber in described parallel optical fibre array passes through described upper substrate and infrabasal plate is sandwiched fixing.
The beneficial effect of above-mentioned further scheme is: by upper substrate and infrabasal plate sandwiched fixing, the optical fiber in parallel light array accurately can be fixed, and can not external interference is subject to and misplace.
Further: multifiber spaced set in described parallel optical fibre array, multiple laser instrument spaced set in described VCSEL laser instrument, and distance in VCSEL laser instrument described in Distance geometry in described parallel optical fibre array between adjacent fiber between adjoining laser is equal.
The beneficial effect of above-mentioned further scheme is: guarantee that the laser that each laser instrument in VCSEL laser instrument sends is precisely corresponding one by one with the optical fiber in described parallel optical fibre coupling array, ensure efficient coupling.
Further: the length of described injection moulding bar is greater than the length of described VCSEL laser instrument.
The beneficial effect of above-mentioned further scheme is: can guarantee that the laser that the laser instrument at two ends in VCSEL laser instrument sends can not run off by the way, enter completely in described injection moulding bar, improve coupling efficiency further.
Further: the height of described supporting construction is greater than the height of described VCSEL laser instrument and the radius sum of described injection moulding bar.
The beneficial effect of above-mentioned further scheme is: can effectively avoid injection moulding bar encounter VCSEL laser instrument and damage VCSEL laser instrument like this, reduces coupling efficiency and optics tolerance.
Further: the axial plane corner of described injection moulding bar is respectively equipped with the gauge point for calibrating described VCSEL laser instrument.
The beneficial effect of above-mentioned further scheme is: make a mark a little on semi-cylindrical injection moulding bar, namely can be used as the reference point at 4 angles of VCSEL laser instrument, adjust the relevant position of injection moulding bar and VCSEL laser instrument according to these 4 angles, make injection moulding bar and VCSEL laser alignment.
Further: described printed circuit board (PCB) and injection moulding bar scribble UV glue respectively, and carry out irradiation solidification by ultraviolet ray machine.
Accompanying drawing explanation
Fig. 1 is the vertical view of the fiber array coupling assembly of a kind of Novel injection molding structure of the present utility model;
Fig. 2 is the side view of the fiber array coupling assembly of a kind of Novel injection molding structure of the present utility model;
Fig. 3 is the front view of the fiber array coupling assembly of a kind of Novel injection molding structure of the present utility model.
In accompanying drawing, the list of parts representated by each label is as follows:
1, printed circuit board (PCB), 2, VCSEL laser instrument, 3, injection moulding bar, 4, supporting construction, 6, gauge point;
51, FA head, 52, parallel optical fibre array.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As Fig. 1, 2, shown in 3, a kind of fiber array coupling assembly of Novel injection molding structure, comprise printed circuit board (PCB) 1, described printed circuit board (PCB) 1 is provided with VCSEL laser instrument 2 and fiber array module, the injection moulding bar 3 parallel with described VCSEL laser instrument 2 is provided with directly over described VCSEL laser instrument 2, on described printed circuit board (PCB) 1, the both sides of VCSEL laser instrument 2 are fixed with the supporting construction 4 for supporting and fix described injection moulding bar 3 respectively, described fiber array module comprises FA 51 and parallel optical fibre array 52, described FA 51 is fixed on described printed circuit board (PCB) 1, described parallel optical fibre array 52 stretches out directly over described FA 51 to described injection moulding bar 3 from the side of described FA 51, and the described parallel optical fibre array 52 one end upper surface be positioned at directly over described injection moulding bar 3 is inclined end face, can ensure that the laser sent from described VCSEL laser instrument 2 enters described parallel optical fibre array 52 through after described injection moulding bar 3 through being reflected by described inclined end face like this.
In the present embodiment, described injection moulding bar 3 is semicylinder, and the curved surface of described injection moulding bar 3 is arranged near described VCSEL laser instrument 2, the axial plane level of described injection moulding bar 3 and arranging near described parallel optical fibre array 52.By semicylinder injection moulding bar, parallel light array is coupled with laser, the light of such laser instrument to have compressed the hot spot of laser instrument from the vertical direction of plastic strip after have passed plastic strip, allow more luminous energy enter fiber array, and then reduce the loss of light, improve coupling efficiency.
Preferably, two described supporting construction 4 parallel interval are arranged, and the equal diameters of distance between two described supporting constructions 4 and described injection moulding bar 3.In the present embodiment, the diameter a of described injection moulding bar 3 is 2mm, and the spacing between two described supporting constructions 4 is also set to 2mm.In this way can by the fixation of described injection moulding bar 3, each optical fiber in the laser that VCSEL laser instrument 2 is sent and fiber array is strictly aimed at, and there will not be deviation to cause coupling efficiency to reduce in coupling process.
In the present embodiment, the pitch angle of the inclined end face of described parallel optical fibre array 52 is 45 °.Dip plane described here is low away from described FA 51 one end, high near described FA 51 one end, tilts near described FA 51 one end to away from described FA 51 one end.The inclined end face of described fiber array 52 is ground its end face by optic fiber polishing machine, carries out observing and cleaning with microscope, ensures that fiber array 2 end face of grinding is 45 ° and neatly smooth.
In the present embodiment, described FA 51 comprises upper substrate and infrabasal plate, the multifiber in described parallel optical fibre array 52 by described upper substrate and infrabasal plate sandwiched fixing.By upper substrate and infrabasal plate sandwiched fixing, the optical fiber in parallel light array 52 accurately can be fixed, and can not external interference is subject to and misplace, ensure higher coupling efficiency.
In the present embodiment, the multiple laser instruments in the multifiber in described parallel optical fibre array 52 and described VCSEL laser instrument 2 align setting in vertical direction.Preferably, multifiber spaced set in described parallel optical fibre array 52, multiple laser instrument spaced set in described VCSEL laser instrument 2, and distance in described parallel optical fibre array 52 between adjacent fiber is equal with the distance between adjoining laser in described VCSEL laser instrument 2.Guarantee that the laser that each laser instrument in VCSEL laser instrument 2 sends is precisely corresponding one by one with the optical fiber in described parallel optical fibre coupling array like this, ensure efficient coupling.In the present embodiment, (the distance (not shown) in Fig. 3 d) and in described VCSEL laser instrument 2 between adjoining laser is all set to 250 μm to distance in described parallel optical fibre array 52 between adjacent fiber, and error is less than 0.2 μm.
Preferably, the length of described injection moulding bar 3 is greater than the length of described VCSEL laser instrument 2.The length that the length of described injection moulding bar 3 is greater than described VCSEL laser instrument 2 all can adjust according to actual conditions, such as during the different types of VCSEL laser instrument 2 of described fiber array correspondence, the length of the described injection moulding bar 3 of corresponding adjustment, only need ensure that the length of injection moulding bar 3 is greater than the length of described VCSEL laser instrument 2.In the present embodiment, the length 3mm larger than the length of described VCSEL laser instrument 2 of described injection moulding bar 3.
In the present embodiment, the height (being expressed as a+b+c in Fig. 2) of described supporting construction 4 is greater than the height c of described VCSEL laser instrument 2 and the radius a sum of described injection moulding bar 3.Here, we set described supporting construction 4 is 2.25mm with the difference in height (being expressed as a+b in Fig. 2) of described VCSEL laser instrument 2, and the diameter of described injection moulding bar 3 (is expressed as in Fig. 2 and a) is set as 2mm, (be expressed as in Fig. 2 b) is 0.25mm to distance between such injection moulding bar 3 and VCSEL laser instrument 2, avoid injection moulding bar encounter VCSEL laser instrument 2 and damage VCSEL laser instrument, reduce coupling efficiency and optics tolerance.
Preferably, the axial plane corner of described injection moulding bar 3 is respectively equipped with the gauge point for calibrating described VCSEL laser instrument.Semi-cylindrical injection moulding bar 3 makes a mark a little, namely can be used as the reference point at 4 angles of VCSEL laser instrument 2, adjust injection moulding bar 3 and the relevant position of VCSEL laser instrument 2 according to these 4 angles, injection moulding bar 3 is aimed at VCSEL laser instrument 2.
In the present embodiment, described printed circuit board (PCB) 1 and injection moulding bar 3 scribble UV glue respectively, and carry out irradiation solidification by ultraviolet ray machine.
The fiber array coupling assembly of a kind of Novel injection molding structure of the present utility model, realize VCSEL laser instrument by injection moulding bar to aim at and efficient coupling with fiber array, light is made to be coupled into fiber array efficiently, thus improve coupling efficiency and the optics tolerance of fiber array, the situation of laser instrument can be encountered when avoiding Direct couple, reduce cost simultaneously.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (11)
1. the fiber array coupling assembly of a Novel injection molding structure, it is characterized in that: comprise printed circuit board (PCB) (1), described printed circuit board (PCB) (1) is provided with VCSEL laser instrument (2) and fiber array module, the injection moulding bar (3) parallel with described VCSEL laser instrument (2) is provided with directly over described VCSEL laser instrument (2), the both sides of the upper VCSEL laser instrument (2) of described printed circuit board (PCB) (1) are fixed with the supporting construction (4) for supporting and fix described injection moulding bar (3) respectively, described fiber array module comprises FA head (51) and parallel optical fibre array (52), described FA head (51) is fixed on described printed circuit board (PCB) (1), described parallel optical fibre array (52) stretches out directly over described FA head (51) to described injection moulding bar (3) from the side of described FA head (51), and one end upper surface that described parallel optical fibre array (52) is positioned at directly over described injection moulding bar (3) is inclined end face.
2. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, it is characterized in that: described injection moulding bar (3) is semicylinder, and the curved surface of described injection moulding bar (3) is arranged near described VCSEL laser instrument (2), the axial plane level of described injection moulding bar (3) and arranging near described parallel optical fibre array (52).
3. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 2, it is characterized in that: two described supporting construction (4) parallel interval are arranged, and the equal diameters of distance between two described supporting constructions (4) and described injection moulding bar (3).
4. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, is characterized in that: the pitch angle of the inclined end face of described parallel optical fibre array (52) is 45 °.
5. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, it is characterized in that: described FA head (51) comprises upper substrate and infrabasal plate, the multifiber in described parallel optical fibre array (52) passes through described upper substrate and infrabasal plate is sandwiched fixing.
6. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 5, is characterized in that: the multifiber in described parallel optical fibre array (52) aligns in vertical direction with the multiple laser instruments in described VCSEL laser instrument (2) and arranges.
7. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 6, it is characterized in that: the equal spaced set of multiple laser instrument in multifiber and described VCSEL laser instrument (2) in described parallel optical fibre array (52), and distance in described parallel optical fibre array (52) between adjacent fiber is equal with the distance between the middle adjoining laser of described VCSEL laser instrument (2).
8. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, is characterized in that: the length of described injection moulding bar (3) is greater than the length of described VCSEL laser instrument.
9. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, is characterized in that: the height of described supporting construction (4) is greater than the height of described VCSEL laser instrument and the radius sum of described injection moulding bar (3).
10. the fiber array coupling assembly of a kind of Novel injection molding structure according to claim 1, is characterized in that: the axial plane corner of described injection moulding bar (3) is respectively equipped with the gauge point (6) for calibrating described VCSEL laser instrument.
11. according to any one of claim 1 to 10 a kind of fiber array coupling assembly of Novel injection molding structure, it is characterized in that: described printed circuit board (PCB) (1) and injection moulding bar (3) scribble UV glue respectively, and carry out irradiation solidification by ultraviolet ray machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490686.7U CN204719277U (en) | 2015-07-08 | 2015-07-08 | A kind of fiber array coupling assembly of Novel injection molding structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490686.7U CN204719277U (en) | 2015-07-08 | 2015-07-08 | A kind of fiber array coupling assembly of Novel injection molding structure |
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| CN204719277U true CN204719277U (en) | 2015-10-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005121A (en) * | 2015-07-08 | 2015-10-28 | 武汉博昇光电技术有限公司 | Novel optical fiber array coupling assembly of injection moulding structure |
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2015
- 2015-07-08 CN CN201520490686.7U patent/CN204719277U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005121A (en) * | 2015-07-08 | 2015-10-28 | 武汉博昇光电技术有限公司 | Novel optical fiber array coupling assembly of injection moulding structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430223 Hubei city of Wuhan province East Lake hi tech Development Zone No. two Wu Da Yuan Hang domain Technology Park 2 Building 9 layer A1 Patentee after: WUHAN BOSHENG PHOTOELECTRIC TECHNOLOGY CO., LTD. Address before: 430000 Hubei city of Wuhan province East Lake hi tech Development Zone No. two Wu Da Yuan Hang domain Technology Park 2 Building 9 layer A1 Patentee before: Wuhan Powerise Optoelectronical Technology Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel optical fiber array coupling assembly of injection moulding structure Effective date of registration: 20160427 Granted publication date: 20151021 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: WUHAN BOSHENG PHOTOELECTRIC TECHNOLOGY CO., LTD. Registration number: 2016420000011 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170224 Granted publication date: 20151021 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: WUHAN BOSHENG PHOTOELECTRIC TECHNOLOGY CO., LTD. Registration number: 2016420000011 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20170912 |