CN102692683A - Fiber array positioning assembly - Google Patents
Fiber array positioning assembly Download PDFInfo
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- CN102692683A CN102692683A CN2011100745152A CN201110074515A CN102692683A CN 102692683 A CN102692683 A CN 102692683A CN 2011100745152 A CN2011100745152 A CN 2011100745152A CN 201110074515 A CN201110074515 A CN 201110074515A CN 102692683 A CN102692683 A CN 102692683A
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- optical fiber
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- circular groove
- groove
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Abstract
The invention discloses a fiber array positioning assembly. The assembly comprises an upper cover plate, a lower substrate and a fiber. The fiber is arranged between the upper cover plate and the lower substrate. The upper cover plate is pressed on the fiber. Semicircle grooves are uniformly distributed on an upper surface of the lower substrate. An intersecting line of left and right sides of an upper end of the semicircle groove and the upper surface of the lower substrate is an edge. In one semicircle groove, a distance between the edge of the left side and the edge of the right side is less than a diameter of the fiber. The fiber is supported between the edge of the left side and the edge of the right side of the same semicircle groove. There is a gap between a bottom of the fiber and a bottom wall of the semicircle groove. According to the invention, processing cost is low and simultaneously high positioning precision is possessed.
Description
Technical field
The present invention relates to the passive device in a kind of optical communication technology, be specifically related to a kind of optical fibre array positioning assembly that inputs or outputs coupling interface of array device.
Background technology
Fiber to the home (FTTH) is to realize that voice, data and CATV merge the best solution that inserts, and FTTH inserts the general EPON (PON) that adopts.Optical branching device is one of core devices among the PON, in order to realize the distribution of light signal.Optical branching device comprises branch optical chip and the I/O fiber array based on zero diopter light path (PLC) technology.Optical fibre array positioning assembly is used for the accurate location of optical fiber, is the most critical optical element of making fiber array.
Array waveguide grating (AWG) device of using always in dense wave division multipurpose (DWDM) system; Its core is based on the wavelength-division chip of PLC technology; Input/output end port wherein also need adopt fiber array, so optical fibre array positioning assembly also is necessary optical element in the AWG device.
Off line commonly used (CTP) technology of directly making a plate needs an optical fiber solid matter head, in order to produce pointolite array in the printing industry.Also need optical fibre array positioning assembly to carry out fiber orientation in the optical fiber solid matter head, different with the AWG device with the aforementioned lights shunt is, what be positioned is multimode optical fiber here, but not single-mode fiber.Therefore optical fibre array positioning assembly also has important use in the CTP printing technology.
Referring to Fig. 1, Fig. 2, in the prior art, optical fiber 4 ' array positioning component comprise upper cover plate 1 ', infrabasal plate 2 ' and optical fiber 4 ', a plurality of V-type grooves 3 of infrabasal plate 2 ' evenly be provided with ', optical fiber 4 ' be arranged in V-type groove 3 ', upper cover plate 1 ' pressure be located at optical fiber 4 ' on.Wherein, V-type groove 3 ' form with the high precision machine tool cut, with its two sidewalls to optical fiber 4 ' position.Fig. 3 is desirable groove face (occupy a left side), have distortion groove face (occupying right) that the groove face (centre) of depth error, cutter head distortion the cause contrast view respectively at optical fiber 4 ' cooperation, wherein, and L
1Be groove depth error distance, L
2Be the optical fiber height error distance that the groove face distortion causes, L
3The optical fiber height error distance that causes for the groove depth error.Optical fiber 4 ' cylinder and V-type groove 3 ' the side tangent, optical fiber 4 ' the perpendicular positioning precision depend on two tangent lines 5 ' height.If certain V-type groove 3 in the array ' the degree of depth have error, will make optical fiber 4 ' with V-type groove 3 ' the tangent line 5 ' generation difference in height of side, corresponding optical fiber 4 ' will produce the perpendicular positioning error.Simultaneously, the V-type groove 3 that causes of cutter head distortion ' distortion also can make optical fiber 4 ' with V-type groove 3 ' the tangent line 5 ' generation difference in height of side.Because V-type groove 3 ' the degree of depth and shape all can have influence on optical fiber 4 ' the perpendicular positioning precision, make to have V-type groove 3 ' optical fiber 4 ' array positioning component bearing accuracy relatively poor.In the prior art usually all be through improve V-type groove 3 ' machining precision solve the problems referred to above; Yet cutter tip is a pointed shape; Cutter tip can wear and tear often in process, this must influence V-type groove 3 ' the degree of depth and the machining precision of shape, therefore must the new cutter head of frequent change; To guarantee machining precision, this can increase processing cost undoubtedly.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of optical fibre array positioning assembly with semi-circular groove is provided, the processing cost of this optical fibre array positioning assembly is low, has high orientation precision simultaneously.
The objective of the invention is to realize: a kind of optical fibre array positioning assembly through following scheme; Comprise upper cover plate, infrabasal plate and optical fiber; Said optical fiber is between said upper cover plate and said infrabasal plate; Said upper cover plate is pressed and is located on the said optical fiber, and the upper surface of said infrabasal plate is evenly distributed with semi-circular groove, and the intersection of the left and right sides of the upper end of said semi-circular groove and the upper surface of infrabasal plate is a seamed edge; In same semi-circular groove; Distance between the seamed edge on seamed edge and the right side in left side is less than the diameter of said optical fiber, and said fiber support and leaves the gap between the diapire of the lower end of said optical fiber and said semi-circular groove between the seamed edge on the seamed edge in the left side of same semi-circular groove and right side.
The groove that said semi-circular groove forms for the lathe grinding.
The invention has the advantages that: in the present invention, because infrabasal plate is provided with the semi-circular groove of many strip arrays, the both sides of the upper end of semi-circular groove have seamed edge; The seamed edge of all semi-circular groove all is on the surface that same plane is an infrabasal plate; The groove width of semi-circular groove is less than the diameter of optical fiber, and this semi-circular groove plays fiber support through the seamed edge of both sides, and optical fiber does not contact with the diapire of semi-circular groove; Because the infrabasal plate surface is high-precision optical polish face; Have higher flatness, therefore, can guarantee the perpendicular positioning precision of optical fiber as long as guarantee that the groove width of all semi-circular groove is consistent; This has been avoided making that because of the inconsistent difference that causes the fiber orientation height of the degree of depth of each groove in the infrabasal plate bearing accuracy of optical fiber is higher.Simultaneously, the semi-circular groove of infrabasal plate of the present invention is formed by the high precision machine tool grinding, and the microflute width only depends on the cutter head width of lathe; Irrelevant with the cutter head shape, in process, cutter head shape and grinding depth all possibly change because of wearing and tearing; And the general malleable not of cutter head width; Therefore under the situation of the cutter head that frequent change is not new, still can process the more consistent semi-circular groove of width, this has prolonged the serviceable life of cutter head, reduces the processing cost of micro slot array.
Description of drawings
Fig. 1 is the structural representation of infrabasal plate of the optical fibre array positioning assembly of prior art;
Fig. 2 is the structural representation that the optical fibre array positioning assembly of prior art cooperates with fiber array;
Fig. 3 is the optical fibre array positioning assembly normal condition and the contrast view that has error condition of prior art;
Fig. 4 is the structural representation of the infrabasal plate of optical fibre array positioning assembly of the present invention;
Fig. 5 is the structural representation that optical fibre array positioning assembly of the present invention cooperates with fiber array;
Fig. 6 is optical fibre array positioning assembly normal condition of the present invention and the contrast view that has error condition.
In Fig. 1 to Fig. 3: upper cover plate 1 '; Infrabasal plate 2 '; V-type groove 3 '; Optical fiber 4 '; Tangent line 5 ';
In Fig. 4 to Fig. 5; Upper cover plate 1; Infrabasal plate 2; Semi-circular groove 3; Optical fiber 4; Seamed edge 5.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Like Fig. 4, shown in Figure 5, a kind of optical fiber 4 array positioning components comprise upper cover plate 1, infrabasal plate 2 and optical fiber 4; Optical fiber 4 is between upper cover plate 1 and infrabasal plate 2; Upper cover plate 1 is pressed and is located on the optical fiber 4, and the upper surface of infrabasal plate 2 is evenly distributed with semi-circular groove 3, and the intersection of the upper surface of the left and right sides of the upper end of semi-circular groove 3 and infrabasal plate 2 is a seamed edge 5; In same semi-circular groove 3; Distance between the seamed edge 5 on seamed edge 5 and the right side in left side is less than the diameter of optical fiber 4, and optical fiber 4 is supported between the seamed edge 5 on seamed edge 5 and right side in left side of same semi-circular groove 3, and leaves the gap between the diapire of the lower end of optical fiber 4 and semi-circular groove 3.Wherein, the groove that forms for the lathe grinding of semi-circular groove 3.
The contrast view that the distortion groove face (occupying right) that Fig. 6 is desirable groove face (occupy a left side), exist the groove face (centre) of depth error, cutter head distortion to cause cooperates respectively at optical fiber 4, wherein, L
1Be the groove depth error distance.
As shown in Figure 6; Optical fiber 4 is pressed in the semi-circular groove 3 by upper cover plate 1, two lateral edges, 5 support optical fibers 4 of semi-circular groove 3, and the perpendicular positioning precision of optical fiber 4 depends on the height and the spacing of these two seamed edges 5; If there is error in the degree of depth of certain semi-circular groove 3 in the array; Perhaps groove face is out of shape because of tool bit abrasion, all can not change the height and the spacing of these two seamed edges 5, so optical fiber 4 can not produce the perpendicular positioning error.
In same semi-circular groove 3, the height of two seamed edges 5 can not changed because of grinding by the optical polish decision of substrate.Cutter head width when the spacing between two seamed edges 5 depends on grinding; Cutter head can deform because of wearing and tearing, and the cutter head width is difficult for changing, and does not therefore need the new cutter head of frequent change; Prolong the serviceable life of cutter head, reduced the processing cost of micro slot array.Simultaneously, semi-circular groove 3 forms through grinding, and the grinding cutter head is blunt nosed shape, is difficult for being out of shape because of wearing and tearing.
Should be noted that at last; Above content is only in order to explain technical scheme of the present invention; But not to the restriction of protection domain of the present invention; The simple modification that those of ordinary skill in the art carries out technical scheme of the present invention perhaps is equal to replacement, does not all break away from the essence and the scope of technical scheme of the present invention.
Claims (2)
1. optical fibre array positioning assembly; Comprise upper cover plate, infrabasal plate and optical fiber, said optical fiber is between said upper cover plate and said infrabasal plate, and said upper cover plate is pressed and is located on the said optical fiber; It is characterized in that: the upper surface of said infrabasal plate is evenly distributed with semi-circular groove; The intersection of the left and right sides of the upper end of said semi-circular groove and the upper surface of infrabasal plate is a seamed edge, and in same semi-circular groove, the distance between the seamed edge in left side and the seamed edge on right side is less than the diameter of said optical fiber; Said fiber support and leaves the gap between the diapire of the lower end of said optical fiber and said semi-circular groove between the seamed edge on the seamed edge in the left side of same semi-circular groove and right side.
2. according to the described optical fibre array positioning assembly of claim 1, it is characterized in that: the groove that said semi-circular groove forms for the lathe grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100745152A CN102692683A (en) | 2011-03-25 | 2011-03-25 | Fiber array positioning assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100745152A CN102692683A (en) | 2011-03-25 | 2011-03-25 | Fiber array positioning assembly |
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| CN102692683A true CN102692683A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100745152A Pending CN102692683A (en) | 2011-03-25 | 2011-03-25 | Fiber array positioning assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278894A (en) * | 2013-06-14 | 2013-09-04 | 洛合镭信光电科技（上海）有限公司 | Coupling assembly, optical fiber array module using coupling assembly and optical transceiver engine module using coupling assembly |
| CN104965261A (en) * | 2015-06-19 | 2015-10-07 | 四川光发科技有限公司 | Fiber array |
| WO2016065964A1 (en) * | 2014-10-31 | 2016-05-06 | 江苏亨通光网科技有限公司 | Planar waveguide c-shaped groove substrate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1172644A (en) * | 1997-08-28 | 1999-03-16 | Sumitomo Electric Ind Ltd | Optical fiber array, ferrule and optical connector utilizing the ferrule |
| JPH11242128A (en) * | 1997-12-26 | 1999-09-07 | Ngk Insulators Ltd | Thermal fusion integrated ferrule, its production, and production of fiber array |
| CN1564040A (en) * | 2004-04-05 | 2005-01-12 | 武汉海博光技术有限公司 | Optical fiber arranging method in optical fiber array assembly, and its appts. |
| CN201725059U (en) * | 2010-06-03 | 2011-01-26 | 深圳日海通讯技术股份有限公司 | Centering structure for optical fiber connector |
| CN201993495U (en) * | 2011-03-25 | 2011-09-28 | 上海坤腾光电科技有限公司 | Optical fiber array positioning assembly |
-
2011
- 2011-03-25 CN CN2011100745152A patent/CN102692683A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1172644A (en) * | 1997-08-28 | 1999-03-16 | Sumitomo Electric Ind Ltd | Optical fiber array, ferrule and optical connector utilizing the ferrule |
| JPH11242128A (en) * | 1997-12-26 | 1999-09-07 | Ngk Insulators Ltd | Thermal fusion integrated ferrule, its production, and production of fiber array |
| CN1564040A (en) * | 2004-04-05 | 2005-01-12 | 武汉海博光技术有限公司 | Optical fiber arranging method in optical fiber array assembly, and its appts. |
| CN201725059U (en) * | 2010-06-03 | 2011-01-26 | 深圳日海通讯技术股份有限公司 | Centering structure for optical fiber connector |
| CN201993495U (en) * | 2011-03-25 | 2011-09-28 | 上海坤腾光电科技有限公司 | Optical fiber array positioning assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278894A (en) * | 2013-06-14 | 2013-09-04 | 洛合镭信光电科技（上海）有限公司 | Coupling assembly, optical fiber array module using coupling assembly and optical transceiver engine module using coupling assembly |
| WO2016065964A1 (en) * | 2014-10-31 | 2016-05-06 | 江苏亨通光网科技有限公司 | Planar waveguide c-shaped groove substrate |
| CN104965261A (en) * | 2015-06-19 | 2015-10-07 | 四川光发科技有限公司 | Fiber array |
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Application publication date: 20120926 |