CN201876573U - Optical fiber fixing seat for optical device - Google Patents
Optical fiber fixing seat for optical device Download PDFInfo
- Publication number
- CN201876573U CN201876573U CN2010206055077U CN201020605507U CN201876573U CN 201876573 U CN201876573 U CN 201876573U CN 2010206055077 U CN2010206055077 U CN 2010206055077U CN 201020605507 U CN201020605507 U CN 201020605507U CN 201876573 U CN201876573 U CN 201876573U
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- capillary
- contact pin
- optical fiber
- pin
- capillary contact
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Abstract
The utility model relates to an optical fiber fixing seat for an optical device, which comprises two cylindrical capillary contact pins, optical fibers arranged in the capillary contact pins and gel between the capillary contact pins and the optical fibers. The end faces of the capillary contact pins are butted. The optical fiber fixing seat is characterized in that the capillary contact pins adopt a split structure so that the optical fibers can be arranged in the capillary contact pins directly instead of being inserted. The utility model has the beneficial effects that since the split structures are adopted, the insertion loss of the optical fibers is reduced, the positioning accuracy is increased to be plus or minus 0.0005mm, one eighth of the original product accuracy, the clearances between the optical fibers and capillary contact pin positioning slots are eliminated to optimize losses of optical paths, the siphon method is not adopted for gel solidification, the gel is distributed uniformly, internal tension of the capillary contact pins is also distributed uniformly, and internal stress of the capillary contact pins is reduced to the largest extent.
Description
[technical field]
The utility model relates to optic fibre fixing device, relates in particular to the optical device fiber fixed seat.
[background technology]
In the fibre-optic transmission system (FOTS) light path is played the unit of conversion, connection and control function, optical device is the basis that makes up light communication system and network, no matter be high-speed light transmission equipment, long haul optical transmission equipment, or intelligent light optical-fiber network of greatest concern at present, the speed of optical device technical progress and model change is all depended in their development, along with the continuous progress of optical fiber communication technology, optical device develops to miniaturization, the complicacy that reduces structure, low cost, direction such as integrated rapidly.Optical devices such as optical fiber collimator, fiber array unit FAU are the basic optical device in Fiber Optical Communication System and the optical fiber sensing system, and all basic optical devices all must have accurate fiber fixed seat, it is exactly to control bearing accuracy to reduce to insert loss that the basic structure of fiber fixed seat is included in most important in the fiber plant
Insert loss and be meant that the fiber fixed seat that continues subtracts (being the relative reduction of joints of optical fibre output power with respect to power input) to the luminous power sorrow that system causes.Inserting loss is mainly caused by the lateral runout between consecutive two optical fiber.Be arranged in a straight line as two optical fiber, lateral runout is zero, then its insertion loss minimum that causes.But in the actual docking operation of fiber orientation contact pin, this is unlikely realization, because the decentraction of concentricity, fibre core and the fibre cladding of the decentraction of capillary contact pin endoporus, capillary contact pin endoporus and external diameter, fibre cladding or the like all can cause the lateral runout between optical fiber.
At present, the fiber fixed seat strength member that uses on the market mostly is pore contact pin (Capillary), and type is various, as single fiber, two fibre, three fibres, four fibres or the like pore contact pin, optical fiber penetrates pore from taper hole, some glue fixed fiber carries out subsequent handling processing then; The capillary dimensions limit of accuracy of single fiber contact pin is generally at ± 0.001mm, the capillary dimensions limit of accuracy of many fine contact pins is generally at ± 0.002mm, and fibre diameter is 0.125mm ± 0.0007mm, after optical fiber and the assembling of pore contact pin, there is lateral runout between the optical fiber of 0.002mm to 0.004mm, causes insertion loss to a certain extent.
Because optical fiber is to be fixed together with pore point glue, what utilize during point glue is that siphonic effect is the full whole pore of adhesive plaster, but owing to have lateral runout between optical fiber and pore, and the pore surface transparent is smooth, is easy to cause hungry area, causes optic fibre force power inhomogeneous, add the internal stress that is configured to because of the pore pin junction, pore contact pin cracking under extreme environment, thereby fibercuts, lower serviceable life.Behind optical fiber and pore contact pin formation light-path, because lateral runout exists between optical fiber, light path is adjusted loaded down with trivial details, and cost of labor is very high.Because the restriction of pore contact pin production technology, 4 to 5 optical fiber of each pore contact pin assembling have been the limit, cause the pore contact pin can not miniaturization and integrated, restricted optical device and developed to miniaturization, low cost, direction such as integrated, it is significant therefore to research and develop novel high-accuracy fiber orientation device.
[summary of the invention]
It is in alignment that the utility model proposes a kind of path optical fiber that can make at above problem, eliminates skew between optical fiber and the capillary contact pin location, allows assembling machining precision raising between sleeve pipe and the capillary contact pin, and optical path loss reaches the bottom line of ideal value.
The technical solution of the utility model is: a kind of optical device fiber fixed seat, comprise that two sections are the capillary contact pin of the mutual butt joint of cylinder bodily form end face, the optical fiber of capillary contact pin inside, gel between capillary contact pin and optical fiber, it is characterized in that the split-type structural of described capillary contact pin for allowing optical fiber directly put in and to insert.
Described split-type structural is divided into two, and the composition surface that has at least is the non-smooth face with groove, constitutes the capillary pin holes that adapts with the optical fiber size after both fit together.
The split-type structural of described capillary contact pin is last capillary pin block and following capillary pin block two block structures, the described binding face of going up capillary contact pin and following capillary pin block has corresponding half groove, the synthetic capillary pin holes that adapts with the optical fiber size of two and half grooves after both are fitted in.
The split-type structural of described capillary contact pin is left capillary pin block and right capillary pin block two block structures, the binding face of described left capillary contact pin and right capillary pin block has corresponding half groove, the synthetic capillary pin holes that adapts with the optical fiber size of two and half grooves after both are fitted in.
The cross sectional shape of described capillary pin holes is circle, rectangle, rectangle, rhombus, triangle, corrugated.
The beneficial effects of the utility model are: split-type structural helps reducing the insertion loss of optical fiber, improve bearing accuracy, bearing accuracy can reach ± 0.0005mm, be 1/8 of existing product precision, eliminated cheap between optical fiber and capillary contact pin locating slot, make optical path loss reach best, split-type structural need not adopt the solid glue of siphonage simultaneously, colloid is evenly distributed, and the uniform property of capillary contact pin inner tensions is good, and the also very big degree of split-type structural has reduced the stress of capillary contact pin inside.
[description of drawings]
Fig. 1 is the utility model prior art structural representation;
Fig. 2 is the cut-open view of the single fiber structure of Fig. 1;
Fig. 3 is the structural representation of present embodiment 1;
Fig. 4 (a) be have about the fiber fixed seat sectional view of two capillary contact pin V-type slots;
Fig. 4 (b) has the fiber fixed seat sectional view of two capillary contact pin V-type slots up and down;
Fig. 5 is the structural representation with capillary contact pin of multiple tracks groove;
Fig. 6 (a) is the cross section structure synoptic diagram of single fiber capillary contact pin;
Fig. 6 (b) is the cross section structure synoptic diagram of the thin contact pin of many ciliums.
1, optical fiber; 2, sleeve; 3, capillary contact pin; 3.1, go up the capillary pin block; 3.2, following capillary pin block; 3.3, left capillary pin block; 3.4, right capillary pin block; 4, capillary pin holes; 5, gel, 6, groove; 7, bell.
[embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.
Embodiment 1:
With reference to figure 1, be optical device optical fiber collimator synoptic diagram commonly used on the market, the awl bell 7 that optical fiber 1 passes capillary contact pin 3 is inserted in the capillary pin holes 4, point gel 5 is fixing, be assembled into fiber fixed seat, fiber fixed seat, lens arrangement in sleeve 2, by adjust repeatedly after the light path point fixedly the gel 5 of usefulness be fixed in the sleeve 2.Because of the production technology reason, capillary contact pin 3 external diameter tolerances are at ± 0.005mm, so the fit-up gap of sleeve 2 and capillary contact pin 3 is generally at 0.005mm, and also there is 0.003mm the fit-up gap of optical fiber 1 and capillary pin holes 4, adding up to assemble lateral deviation has 0.003-0.008mm, causes insertion loss to a certain extent.
The optical device fiber fixed seat that the utility model is related, comprise that two sections are the capillary contact pin 3 of the mutual butt joint of cylinder bodily form end face, the optical fiber 1 of capillary contact pin 3 inside, gel 5 between capillary contact pin 3 and optical fiber 1, it is characterized in that the split-type structural of described capillary contact pin 3 for allowing optical fiber 1 directly put in and to insert.
Described split-type structural is divided into two, and the composition surface that has at least is the non-smooth face with groove 6, constitutes the capillary pin holes 4 that adapts with the optical fiber size after both fit together.
The split-type structural of described capillary contact pin 3 is for being last capillary pin block 3.1 and 3.2 liang of block structures of following capillary pin block, the described binding face of going up capillary pin block 3.1 and following capillary pin block 3.2 has corresponding half groove 6, the synthetic capillary pin holes 4 that adapts with the optical fiber size of two and half grooves after both are fitted in.
The split-type structural of described capillary contact pin is left capillary pin block 3.3 and 3.4 liang of block structures of right capillary pin block, the binding face of described left capillary contact pin 3.3 and right capillary pin block 3.4 has corresponding half groove 6, two and half grooves, the 6 synthetic capillary pin holes 4 that adapt with the optical fiber size after both are fitted in.
The cross sectional shape of described capillary contact pin can be taked different shapes according to being applied to different devices, such as modal circle, rectangle, square, and the shape of using always etc. other technologies field personnel.
The cross sectional shape of described capillary pin holes 4 is circle, rectangle, rectangle, rhombus, triangle, corrugated.As contact pin that can integrated fixedly multiply optical fiber, adopt the faying face of multiple tracks form of grooves, the cross section will form bellows-shaped like this.
As Fig. 4 (b), as a kind of embodiment, come positioning optical waveguides with a kind of V-type groove, eliminated the skew between optical fiber and contact pin locating slot, make the optical path loss value reach best, reach optical-circuit balance; Directly glue is put in the upper and lower capillary channel contact pin V-type groove during point glue, put into optical fiber again, fit at last, avoided the hungry area phenomenon; Because, do not have structurally internal stress, under extreme environment, avoid cracking, life-span and more excellent performance for dividing body structure.
Embodiment 2: with reference to figure 5 in the present embodiment can be on the contact pin of identical appearance size integrated 4-128 road light-path, the shape of cross section of the groove of the optical fiber contact pins of employing is a ripple type, has the multiple tracks groove.Farthest miniaturization, integrated.The utility model principal character is: optical fiber collimator is made up of fiber fixed seat, glue, sleeve pipe, lens, fiber fixed seat is made up of capillary channel contact pin, optical fiber, glue, the capillary channel contact pin is divided into upper and lower two, xsect is semicircle or rectangle, upper and lower capillary channel contact pin has capillary channel, upper and lower capillary channel contact pin fits together, one or more capillary channel is arranged in the middle of the applying plane, form the fiber orientation pore, the pore cross sectional shape can be rectangle, rectangle, rhombus, triangle, racetrack; Point has glue in the fiber orientation capillary channel of following capillary channel contact pin, places optical fiber then to groove, and capillary channel contact pin in the applying, upper and lower capillary channel contact pin fit together, and afterbody point glue toasts gelling admittedly then, is assembled into fiber fixed seat; Fiber fixed seat and lens arrangement are fixed assembly cost utility model optical device fiber fixed seat through some glue after the light path adjustment to sleeve pipe.
The beneficial effects of the utility model are: split-type structural is conducive to reduce the insertion loss of optical fiber, improve positioning accuracy, positioning accuracy can reach ± 0.0005mm, be 1/8 of existing product precision, eliminated cheap between optical fiber and capillary contact pin locating slot, make optical path loss reach best, split-type structural need not adopt the solid glue of siphonage simultaneously, colloid is evenly distributed, and the uniform property of capillary contact pin inner tensions is good, split-type structural also greatly degree reduced the stress of capillary contact pin inside.
Claims (5)
1. optical device fiber fixed seat, comprise that two sections are the capillary contact pin of the mutual butt joint of cylinder bodily form end face, the optical fiber and the gel between capillary contact pin and optical fiber of capillary contact pin inside, it is characterized in that the split-type structural of described capillary contact pin for allowing optical fiber directly put in and to insert.
2. according to the described optical device fiber fixed seat of claim 1, it is characterized in that, described split-type structural is divided into two, and the composition surface that has at least is the non-smooth face with groove, constitutes the capillary pin holes that adapts with the optical fiber size after both fit together.
3. according to the described optical device fiber fixed seat of claim 2, it is characterized in that, the split-type structural of described capillary contact pin is last capillary pin block and following capillary pin block two block structures, the described binding face of going up capillary contact pin and following capillary pin block has corresponding half groove, the synthetic capillary pin holes that adapts with the optical fiber size of two and half grooves after both are fitted in.
4. according to the described optical device fiber fixed seat of claim 2, it is characterized in that, the split-type structural of described capillary contact pin is left capillary pin block and right capillary pin block two block structures, the binding face of described left capillary contact pin and right capillary pin block has corresponding half groove, the synthetic capillary pin holes that adapts with the optical fiber size of two and half grooves after both are fitted in.
5. according to arbitrary described optical device fiber fixed seat in the claim 1,3,4, it is characterized in that the cross sectional shape of described capillary pin holes is circle, rectangle, rectangle, rhombus, triangle, corrugated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206055077U CN201876573U (en) | 2010-11-12 | 2010-11-12 | Optical fiber fixing seat for optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206055077U CN201876573U (en) | 2010-11-12 | 2010-11-12 | Optical fiber fixing seat for optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876573U true CN201876573U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206055077U Expired - Fee Related CN201876573U (en) | 2010-11-12 | 2010-11-12 | Optical fiber fixing seat for optical device |
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| CN (1) | CN201876573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522650A (en) * | 2021-07-14 | 2021-10-22 | 衡东光通讯技术（深圳）有限公司 | Automatic glue injection and suction equipment and method for optical communication connector |
-
2010
- 2010-11-12 CN CN2010206055077U patent/CN201876573U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522650A (en) * | 2021-07-14 | 2021-10-22 | 衡东光通讯技术（深圳）有限公司 | Automatic glue injection and suction equipment and method for optical communication connector |
| CN113522650B (en) * | 2021-07-14 | 2023-03-31 | 蘅东光通讯技术(深圳)股份有限公司 | Automatic glue injection and suction equipment and method for optical communication connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20151112 |
|
| EXPY | Termination of patent right or utility model |