CN105572820A - Optical sub assembly and preparation method thereof - Google Patents
Optical sub assembly and preparation method thereof Download PDFInfo
- Publication number
- CN105572820A CN105572820A CN201610072519.XA CN201610072519A CN105572820A CN 105572820 A CN105572820 A CN 105572820A CN 201610072519 A CN201610072519 A CN 201610072519A CN 105572820 A CN105572820 A CN 105572820A
- Authority
- CN
- China
- Prior art keywords
- optical
- subcombination
- globe lens
- housing
- wings part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- 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
- G02B6/4255—Moulded or casted packages
-
- 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
- G02B6/4256—Details of housings
-
- 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
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
Abstract
The invention discloses an optical sub assembly and a preparation method thereof and belongs to the optical communication technical field. The optical sub assembly comprises a shell; one end of the shell is provide with a photodiode; the other end of the shell is provided with an optical fiber interface assembly; the optical fiber interface assembly is connected with an optical fiber connector ferrule; a sphere lens is arranged in the shell; a wing-shaped structural component is arranged in the shell; and the wing-shaped structural component and the sphere lens are of an integrally-molded structure or split structure. With the preparation method of the invention adopted, problems such as difficulty in film coating, difficulty in assembling, little possibility of realizing accurate installation, little possibility of realizing mass production and high possibility of damaging a film layer which appear when a film-coated sphere lens is installed in an existing optical sub assembly can be solved.
Description
Technical field
The invention belongs to optical communication technology field, be specifically related to a kind of subcombination for optical and preparation method thereof.
Background technology
Subcombination for optical (OpticalSubassembly or OSA) is important component part in optical communication, is generally used for receiving in optical communication or sending light signal.When subcombination for optical (OSA) tube core is light transmitting chip, we claim this OSA to be TOSA (transmitterOpticalSubassembly, namely light launches sub-assembly), certainly we also can use simple for TOSA as a light emitting source, and the light that now can not send to tube core is modulated.When tube core is light-receiving chip, we claim this OSA to be ROSA (ReceiverOpticalSubassembly, i.e. light-receiving sub-assembly).Certainly the OSA of other types is also had, such as BOSA (bi-directional single fiber component, it is simultaneously containing a light-emitting tube core and light-receiving tube core), Triplexer (single fiber three-way assembly, it is simultaneously containing a light-emitting tube core and two light-receiving tube cores) etc.A typical subcombination for optical OSA (see Fig. 1) is made up of following components: metal base 153, tube core 152 (light is launched or receiving chip), metal pipe cap 151, globe lens 160, subcombination for optical housing 110 and optical fiber interface component 120.When OSA work, optical fiber interface component 120 can be inserted into ferrule of optical fiber connector 130 (ferrule).
Often need in subcombination for optical one or more lens particularly globe lens to play the effect of light collection.Sometimes, the direct sealing-in of lens is on the pipe cap of diode, sometimes, the pipe cap of diode needs the form making flat window, at this moment just needs at subcombination for optical enclosure interior sealing-in lens, when the lens of sealing-in are globe lens and need again globe lens plated film, because its position is deep in enclosure interior, by globe lens with housing one striking film, so need globe lens first independent plated film, then can not be sealed to enclosure interior.Traditional way (see Fig. 2) is that the naked bead 160 being first d diameter is put in special fixture 300, by upper and lower two plate clamps 300, bead 160 is fixed, then it is put into coating machine chamber and carry out plated film.As seen from Figure 2, globe lens upper surface 163 and globe lens lower surface 164 can be coated with film, but simultaneously also have one and do not plate region 165.Before plated film bead uses, an oiliness gauge point 166 can be done at the summit place of globe lens upper surface 163.Time plated film bead uses, plated film bead is put into housing, guarantee that the axis of oiliness gauge point 166 and subcombination for optical overlaps, then sealing-in plated film bead is fixed within the case 110, finally with organic solvents such as alcohol, the oiliness gauge point 166 of plated film bead is wiped.There is following a series of shortcoming in this way:
1, Fig. 2 illustrates the schematic diagram that film plating die clamps a bead, and closed by upper lower clamp 300, the aperture being d2 by diameter fixes the bead that diameter is d.In fact a mould often has hundreds of holes to be used for clamping hundreds of beads, this just needs the tolerance of the diameter d 2 of each aperture very little, just can guarantee the comparison consolidation that most of bead is fixed.Due to the some beads possibility consolidation not that fixture 300 is fixing, cause in the process picking and placeing fixture, before marking point to bead, bead has produced and has generated rotation, and gauge point does not also likely overlap with the summit of plated film upper surface.Because globe lens is a curved surface plated film but not facet coatings, so the plated film at the summit place region that to be coating effects best, and the light ray energy being positioned at housing axis place is the most concentrated, thus the summit of plated film upper surface and the coincidence degree of axis have a strong impact on optical thin film to the antireflective effect of light or attenuating.Because the fixing some beads of fixture 300 may too consolidation, this makes again fixture cause round to scratch to bead, and when bead is sealed in the process of housing by high temperature, these scuffings can cause bursting of bead.
2, when bead puts into housing, need manually to ajust under the microscope, the axis of oiliness gauge point and housing is overlapped.Due to the small ball's diameter d very little (diameter d is generally 1 ~ 3mm) this operation very lost time, make scale of mass production more difficult.
3, bead is put into after housing ajusts, and before it is fixed by thorough sealing-in, in the fetching process of sealing-in fixture, still likely causes gauge point and housing axis not to overlap.
4, bead is fixed on after within housing by thorough sealing-in, due to oiliness gauge point encounter high temperature cabonization, the situation such as harden, compare during removing and be difficult to clean out, and the rete of plating is often thinner, for anti-reflection film, thickness is often less than 400 nanometers, also often may cause damage to plated film when cleaning oiliness mark.
Summary of the invention
For the above-mentioned technical matters existed in prior art, the present invention proposes a kind of subcombination for optical and preparation method thereof, reasonable in design, overcome the deficiencies in the prior art, there is good promotional value.
To achieve these goals, the present invention adopts following technical scheme:
A kind of subcombination for optical, comprise housing, one end of described housing is provided with photodiode, the other end of described housing is provided with optical fiber interface component, described optical fiber interface component is connected with ferrule of optical fiber connector, be provided with globe lens in described housing, be also provided with wings part, described wings part and globe lens are formed in one structure or Split type structure.
Preferably, described wings part is by compression molding forming machine or the cold worked method of optics and globe lens compacting or cut into integrated formed structure.
Preferably, when described wings part and globe lens are Split type structure, described wings part is sealed by cementing agent and globe lens.
Preferably, described photodiode is made up of pipe cap, tube core and base.
Preferably, described housing is made up of metal or plastics.
Preferably, described housing and optical fiber interface component are Split type structure or integrated formed structure.
Preferably, described globe lens is made up of the plastics of glass or printing opacity.
Preferably, described globe lens by the mode sealing-in that is press-fitted or bonds in housing.
Preferably, described subcombination for optical is comprise light to launch any one of sub-assembly, light-receiving sub-assembly, bi-directional single fiber component and single fiber three-way assembly.
In addition, the present invention also mentions a kind of preparation method of subcombination for optical, adopts a kind of subcombination for optical as above, carries out in accordance with the following steps:
Step 1: judge whether wings part and globe lens are formed in one structure;
If: judged result judges that wings part and globe lens are formed in one structure, then perform step 2;
Or judged result judges that wings part and globe lens are Split type structure, then perform step 3;
Step 2: globe lens is put into compression molding forming machine, is pressed into integrated formed structure by wings part and globe lens by the upper/lower die of compression molding forming machine under high temperature anaerobic environment; Or by optics cold worked method, wings part and globe lens are cut into integrated formed structure;
Step 3: globe lens is put into wings part, is sealed globe lens and wings part by cementing agent;
Step 4: the coating clamp globe lens with wings part in above-mentioned steps 2 or step 3 being put into coating machine, by the method for fixing wing structural member, globe lens is fixed, plate the film of anti-reflection film or decay film or other kind then in coating machine as required the upper and lower surface of globe lens;
Step 5: the globe lens having plated film is fixed in the housing of described subcombination for optical by employing cementing agent or the method be press-fitted;
Step 6: photodiode is sealed on the housing of described subcombination for optical;
Step 7: judge whether the housing of optical fiber interface component and described subcombination for optical is formed in one structure;
If: judged result is that the housing of optical fiber interface component and described subcombination for optical is not formed in one structure, then perform step 8;
Or judged result is that the housing of optical fiber interface component and described subcombination for optical is formed in one structure, then perform step 9;
Step 8: optical fiber interface component is sealed on the housing of described subcombination for optical;
Step 9: final photoelectricity test is carried out to described subcombination for optical, visual examination, then pack.
The Advantageous Effects that the present invention brings:
The present invention proposes a kind of subcombination for optical and preparation method thereof, compared with prior art, a kind of subcombination for optical and preparation method thereof, has the following advantages:
(1) plated film is easy, by fixing wing structural member bead is fixed in coating clamp and carrys out plated film, greatly reduce the tolerance of coating clamp, makes plated film easily and no matter whether globe lens rotates, and all guarantees that institute's plated film is located thereon the summit on lower two sides;
(2) assembling easily, do not need manually to ajust under the microscope, only need sealing-in or be press-fitted in the housing, by fixing wing structural member, bead is fixed in the housing, ensure that the summit up and down of housing axis and globe lens overlaps, the summit up and down of globe lens is also the best region of plated film;
(3) rete is not easy damage, because do not need to do oiliness mark on globe lens, so globe lens is after housing internal fixtion, does not need cleaning, so rete is not easy damage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of traditional subcombination for optical.
Fig. 2 is the schematic diagram of globe lens plated film in traditional subcombination for optical.
Fig. 3 is the schematic diagram of subcombination for optical in first embodiment of the invention.
Fig. 4 is the schematic diagram of globe lens plated film in subcombination for optical in the first embodiment.
Fig. 5 is the schematic diagram of subcombination for optical in second embodiment of the invention.
Fig. 6 is the schematic diagram of globe lens plated film in subcombination for optical in the second embodiment.
Wherein, 100-subcombination for optical; 110-housing; 120-optical fiber interface component; 130-ferrule of optical fiber connector; 150-photodiode; 151-pipe cap; 152-tube core; 153-base; 160-globe lens; 161-wings part; 162-cementing agent; 163-globe lens upper surface; 164-globe lens lower surface; 165-does not plate region; 166-oiliness gauge point; 300-coating clamp.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Embodiment 1:
Fig. 3 is the schematic diagram of subcombination for optical 100 in first embodiment of the invention.
Subcombination for optical 100 in the present invention is mainly used in the launching and receiving of light signal in optical communication.
Subcombination for optical OSA of the present disclosure can include but not limited to that light launches sub-assembly (TOSA), light-receiving sub-assembly (ROSA), bi-directional single fiber component (BOSA) and single fiber three-way assembly (Triplexer) etc.; And the packing forms of subcombination for optical OSA can include but not limited to tubbiness, bulk and butterfly etc.
As shown in Figure 3, described subcombination for optical 100 is made up of housing 110, photodiode 150, globe lens 160 and optical fiber interface component 120.
Wherein, housing 110 has the effect connecting photodiode 150 and subcombination for optical 100.
Described photodiode 150, is positioned at described housing 110 one end, is made up of pipe cap 151, tube core 152 and base 153, has the effect receiving or send light signal.
Described globe lens 160, diameter is d, is positioned at described housing 110, and it has wings part 161, cementing agent 162, globe lens upper surface 163 and globe lens lower surface 164, has the effect of converging light.
Described wings part 161 is suppressed by compression molding forming machine or the cold worked method of optics and globe lens 160 or is cut into integrated formed structure.
Described optical fiber interface component 120, has and receives and the effect of positioning optical waveguides connector pin 130.
Described housing 110 and optical fiber interface component 120 can be by together with two part combination, also can make a part one-body molded.
The described globe lens 160 with wings part, can by the mode sealing-in that is press-fitted or bonds in housing 110.
Special needs to be pointed out is that the described globe lens 160 with wings part also can be able to be the plastics of printing opacity for glass.
Fig. 4 is the schematic diagram of globe lens plated film in subcombination for optical in the first embodiment.
Diameter is the coating clamp up and down 300 that coating machine put into by the globe lens 160 of the band wings part of d, by the method for fixing its wings part 161, globe lens 160 is fixed, plate the film of anti-reflection film or decay film or other kind respectively then in coating machine as required globe lens upper surface 163 and globe lens lower surface 164.
Embodiment 2:
Fig. 5 is the schematic diagram of subcombination for optical in second embodiment of the invention.
Second embodiment disclosed by the invention is similar to above-mentioned first embodiment, but difference is conveniently to produce, wings part 161 and globe lens 160 are made Split type structure, in manufacturing process, be that wings pieces 161 put into by the globe lens 160 of d by diameter, by cementing agent 162, globe lens 160 and wings part 161 sealed.
Special needs to be pointed out is that the material of wings part 161 can be metal, pottery or plastics.
The globe lens 160 that described and wings part 161 seals, can by the mode sealing-in that is press-fitted or bonds within the case 110.
Fig. 6 is the schematic diagram of globe lens plated film in subcombination for optical in the second embodiment.
Similar with Fig. 4, be that wings part 161 put into by the globe lens 160 of d by diameter, by cementing agent 162, globe lens 160 and wings part 161 sealed; Then the globe lens 160 sealed with wings part 161 is put into upper and lower coating clamp 300, by the method for fixing wing structural member 161, globe lens 160 is fixed; Last globe lens upper surface 163 and the globe lens lower surface 164 given in coating machine as required plates the film of anti-reflection film or decay film or other kind respectively.
Embodiment 3:
On the basis of above-described embodiment 1 and 2, the invention provides a kind of preparation method of subcombination for optical, wherein, carry out in accordance with the following steps:
Step 1: judge whether wings part and globe lens are formed in one structure;
If: judged result judges that wings part and globe lens are formed in one structure, then perform step 2;
Or judged result judges that wings part and globe lens are Split type structure, then perform step 3;
Step 2: globe lens is put into compression molding forming machine, is pressed into integrated formed structure by wings part and globe lens by the upper/lower die of compression molding forming machine under high temperature anaerobic environment; Or by optics cold worked method, wings part and globe lens are cut into integrated formed structure;
Step 3: globe lens is put into wings part, is sealed globe lens and wings part by cementing agent;
Step 4: the coating clamp globe lens with wings part in above-mentioned steps 2 or step 3 being put into coating machine, by the method for fixing wing structural member, globe lens is fixed, plate the film of anti-reflection film or decay film or other kind then in coating machine as required the upper and lower surface of globe lens;
Step 5: the globe lens having plated film is fixed in the housing of described subcombination for optical by employing cementing agent or the method be press-fitted;
Step 6: photodiode is sealed on the housing of described subcombination for optical;
Step 7: judge whether the housing of optical fiber interface component and described subcombination for optical is formed in one structure;
If: judged result is that the housing of optical fiber interface component and described subcombination for optical is not formed in one structure, then perform step 8;
Or judged result is that the housing of optical fiber interface component and described subcombination for optical is formed in one structure, then perform step 9;
Step 8: optical fiber interface component is sealed on the housing of described subcombination for optical;
Step 9: final photoelectricity test is carried out to described subcombination for optical, visual examination, then pack.
The present invention proposes a kind of subcombination for optical and preparation method thereof, have the following advantages:
(1) plated film is easy, by fixing wing structural member bead is fixed in coating clamp and carrys out plated film, greatly reduce the tolerance of coating clamp, makes plated film easily and no matter whether globe lens rotates, and all guarantees that institute's plated film is located thereon the summit on lower two sides;
(2) assembling easily, do not need manually to ajust under the microscope, only need sealing-in or be press-fitted in the housing, by fixing wing structural member, bead is fixed in the housing, ensure that the summit up and down of housing axis and globe lens overlaps, the summit up and down of globe lens is also the best region of plated film;
(3) rete is not easy damage, because do not need to do oiliness mark on globe lens, so globe lens is after housing internal fixtion, does not need cleaning, so rete is not easy damage.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (10)
1. a subcombination for optical, comprise housing, one end of described housing is provided with photodiode, the other end of described housing is provided with optical fiber interface component, described optical fiber interface component is connected with ferrule of optical fiber connector, be provided with globe lens in described housing, it is characterized in that: be also provided with wings part, described wings part and globe lens are formed in one structure or Split type structure.
2. subcombination for optical according to claim 1, is characterized in that: described wings part is by compression molding forming machine or the cold worked method of optics and globe lens compacting or cut into integrated formed structure.
3. subcombination for optical according to claim 1, is characterized in that: when described wings part and globe lens are Split type structure, and described wings part is sealed by cementing agent and globe lens.
4. subcombination for optical according to claim 1, is characterized in that: described photodiode is made up of pipe cap, tube core and base.
5. subcombination for optical according to claim 1, is characterized in that: described housing is made up of metal or plastics.
6. subcombination for optical according to claim 1, is characterized in that: described housing and optical fiber interface component are Split type structure or integrated formed structure.
7. subcombination for optical according to claim 1, is characterized in that: described globe lens is made up of the plastics of glass or printing opacity.
8. subcombination for optical according to claim 1, is characterized in that: described globe lens by the mode sealing-in that is press-fitted or bonds in housing.
9. subcombination for optical according to claim 1, is characterized in that: described subcombination for optical is comprise light to launch any one of sub-assembly, light-receiving sub-assembly, bi-directional single fiber component and single fiber three-way assembly.
10. a preparation method for subcombination for optical, is characterized in that: adopt a kind of subcombination for optical as claimed in claim 1, carry out in accordance with the following steps:
Step 1: judge whether wings part and globe lens are formed in one structure;
If: judged result judges that wings part and globe lens are formed in one structure, then perform step 2;
Or judged result judges that wings part and globe lens are Split type structure, then perform step 3;
Step 2: globe lens is put into compression molding forming machine, is pressed into integrated formed structure by wings part and globe lens by the upper/lower die of compression molding forming machine under high temperature anaerobic environment; Or by optics cold worked method, wings part and globe lens are cut into integrated formed structure;
Step 3: globe lens is put into wings part, is sealed globe lens and wings part by cementing agent;
Step 4: the coating clamp globe lens with wings part in above-mentioned steps 2 or step 3 being put into coating machine, by the method for fixing wing structural member, globe lens is fixed, plate the film of anti-reflection film or decay film or other kind then in coating machine as required the upper and lower surface of globe lens;
Step 5: the globe lens having plated film is fixed in the housing of described subcombination for optical by employing cementing agent or the method be press-fitted;
Step 6: photodiode is sealed on the housing of described subcombination for optical;
Step 7: judge whether the housing of optical fiber interface component and described subcombination for optical is formed in one structure;
If: judged result is that the housing of optical fiber interface component and described subcombination for optical is not formed in one structure, then perform step 8;
Or judged result is that the housing of optical fiber interface component and described subcombination for optical is formed in one structure, then perform step 9;
Step 8: optical fiber interface component is sealed on the housing of described subcombination for optical;
Step 9: final photoelectricity test is carried out to described subcombination for optical, visual examination, then pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072519.XA CN105572820A (en) | 2016-02-02 | 2016-02-02 | Optical sub assembly and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072519.XA CN105572820A (en) | 2016-02-02 | 2016-02-02 | Optical sub assembly and preparation method thereof |
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| CN105572820A true CN105572820A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610072519.XA Pending CN105572820A (en) | 2016-02-02 | 2016-02-02 | Optical sub assembly and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908916A (en) * | 2017-04-17 | 2017-06-30 | 武汉盛为芯科技股份有限公司 | A kind of vertical-cavity surface-emitting optical device based on flexible PCB |
| CN109792300A (en) * | 2016-08-31 | 2019-05-21 | 祥茂光电科技股份有限公司 | For reducing the technology of the electrical interconnection loss between light emitting sub-assembly (TOSA) and associated driver circuitry and the technology of the optical transceiver system using it |
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| CN106908916A (en) * | 2017-04-17 | 2017-06-30 | 武汉盛为芯科技股份有限公司 | A kind of vertical-cavity surface-emitting optical device based on flexible PCB |
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