CN102650712B - Fiber coupler - Google Patents
Fiber coupler Download PDFInfo
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- CN102650712B CN102650712B CN201110048311.1A CN201110048311A CN102650712B CN 102650712 B CN102650712 B CN 102650712B CN 201110048311 A CN201110048311 A CN 201110048311A CN 102650712 B CN102650712 B CN 102650712B
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- fiber
- fiber coupler
- light source
- buncher
- cylindrical cavity
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- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides a kind of fiber coupler, for at least one optical fiber and light source are coupled mutually, one end co-integration of described at least one optical fiber is in a buncher, this fiber coupler comprises: fiber adapter, be positioned at one end of described fiber coupler and have a circular cylindrical cavity, described buncher can insert in the circular cylindrical cavity of described fiber adapter; Wherein, have a notch configuration in described circular cylindrical cavity, the internal diameter of described notch configuration is greater than the internal diameter of described circular cylindrical cavity.Because the structural design of this fiber coupler is unique, it can firmly fix fibre bundle, also can make to form more stable spacing between light source and optical fiber.
Description
Technical field
The present invention relates to the technical field of the communication apparatus, particularly relate to the special fiber coupler of a kind of structure.
Background technology
In current communication technical field, fiber coupler is a kind of important communication component.Fiber coupler is as a kind of passive optical component, and its main effect is assigned to many optical fiber by light signal from light source, i.e. 1 × N.Described light source also can be the form of sub-thread or multiply optical fiber.Can say, fiber coupler is the maximum optical fibre device of current use amount.Due to the progressively fiberize of local communication network, the rising of Metropolitan Area Network (MAN) and user access networks demand, the aggregate demand in global fiber coupler market constantly expands in recent years, estimates that the annual growth in Future Ten year will about 20%.
Although the whole world has multiple fiber coupler at present, and new varieties are also in continuous appearance, still there is very large demand for dependable performance, stable fiber coupler in industry.
Usually, the major optical characteristic index weighing the quality of fiber coupler is insertion loss (Insertloss) and return loss (Returnloss).In addition, affect the physical characteristics such as the insertion core end face geometric parameter of product quality reliability also more and more by system manufacturer or high-end customer pay attention to.
But the present inventor notices, the various junctures that existing fiber coupler adopts all have some limitations.Particularly, the fiber coupler of prior art, once through using for a long time, just generally there will be the unsteady problem of coupling, thus will increase insertion loss and return loss.These problems will have a strong impact on stability and the reliability of optical delivery.
Summary of the invention
For the above-mentioned deficiency of prior art, The present invention gives a kind of fiber coupling device of structure uniqueness.
Particularly, the invention provides a kind of fiber coupler, for at least one optical fiber and light source are coupled mutually, one end co-integration of described at least one optical fiber is in a buncher, this fiber coupler comprises: fiber adapter, be positioned at one end of described fiber coupler and have a circular cylindrical cavity, described buncher can insert in the circular cylindrical cavity of described fiber adapter; Wherein, have a notch configuration in described circular cylindrical cavity, the internal diameter of described notch configuration is greater than the internal diameter of described circular cylindrical cavity.
According to a preferred embodiment of the present invention, in above-mentioned fiber coupler, the inwall of described notch configuration is provided with one of the convex thread and recessed screw thread of coupling mutually.
According to another preferred embodiment of the present invention, in above-mentioned fiber coupler, the position corresponding with described notch configuration at one end place of described buncher has the another kind in the convex thread of described mutual coupling and recessed screw thread.
According to another preferred embodiment of the present invention, in above-mentioned fiber coupler, the other end of described fiber coupler is used for being connected with a light source buckle, and a spring device is fixed at described other end place.
Fiber coupler of the present invention has very unique structural design.On the one hand, this fiber coupler can firmly fix fibre bundle.On the other hand, this fiber coupler also can make to form more stable spacing between light source and optical fiber.Therefore, fiber coupler of the present invention can form more stable optical delivery effect.
Should be appreciated that more than the present invention generality describe and the following detailed description be all exemplary and explanat, and be intended to for as claimed in claim the invention provides further explanation.
Accompanying drawing explanation
Accompanying drawing is mainly used for providing further to be understood the present invention.Accompanying drawing shows embodiments of the invention, and plays the effect explaining the principle of the invention together with this instructions.In accompanying drawing:
Fig. 1 shows the cut-open view of the primary structure according to fiber coupler of the present invention.
Fig. 2 schematically shows the applied environment of fiber coupler of the present invention.
Embodiment
Technical scheme of the present invention is described in detail below in conjunction with accompanying drawing.Wherein, identical label is for representing identical element, and the concrete technical term in following description does not form the substantial limit to technical scheme of the present invention itself.In fact, the various changes known by those skilled in the art are all allow.
First the applied environment of optical coupler of the present invention is schematically shown with reference to figure 2, Fig. 2.As shown in the figure, fiber coupler 2 is mainly used for light source 1 and many optical fiber 3 to couple, and can transmit to make the light signal from light source 1 in each successfully in these many optical fiber 3.
Usually, needed one end co-integration of these many optical fiber 3 before optical fiber 3 is coupled into fiber coupler 2 in a buncher (represented by the label 101 in Fig. 1).The concrete structure improvement of optical coupler 2 of the present invention is described with detailed reference to Fig. 1 below.
As shown in Figure 1, fiber coupler of the present invention further comprises a fiber adapter 102 compared to traditional optical coupler, and this fiber adapter 102 is positioned at one end of fiber coupler and has a circular cylindrical cavity 103.Wherein, buncher 101 can insert among the circular cylindrical cavity 103 of this fiber adapter 102.Particularly, the end of this circular cylindrical cavity 103 is provided with a notch configuration 104 further, and the internal diameter of this notch configuration 104 is greater than the internal diameter of circular cylindrical cavity 103.This notch configuration 104 is mainly used for the buncher 101 that is coupled.In fact, the position corresponding with this notch configuration 104 of the one end of inserting fiber coupler that need of buncher 101 is provided with the coupled structure corresponding with notch configuration 104.This coupled structure can select traditional buckle coupling mechanism.Preferably, notch configuration 104 selects the mode of screw thread couple to be engaged with buncher 101.In other words, the inwall of notch configuration 104 can be provided with one of the convex thread and recessed screw thread of mutually coupling, the position corresponding with notch configuration 104 at one end place of buncher 101 has the another kind in the convex thread of described mutual coupling and recessed screw thread simultaneously.
Practice shows, by coupled structure, i.e. notch configuration, what be arranged at hub leaves the stability that end face position far away will promote whole coupled structure, thus promotes Optical Fiber Transmission efficiency.
On the other hand, as mentioned above, will intercouple with light source at the other end of optical coupler of the present invention.In the prior art, such coupling adopts traditional coupling technique usually, and such as screw thread couple or buckle are coupled.But along with the increase of service time, above-mentioned coupling scheme are insecure by what cause being coupled.In screw thread couple mode, through using for a long time, screw thread will there will be wearing and tearing, and then coupling part can be made to occur to loosen, and affect the effect of optical delivery, increase return loss and insertion loss.
Not enough for this, the present invention is provided with a spring device 105 at optical coupler with one end place of light source couples.When reality uses, light source is fixed to optical coupler preferably by the mode of buckle.When buckle, this spring device 105 will apply a thrust to light source, make to form a firm spacing between the fibre bundle end face 106 of light source with buncher 101, thus add the stability of optical signal transmission.It will be appreciated, of course, that above-mentioned spacing is actually very small.The value of above-mentioned spacing can be set according to the needs of practical application.
To sum up, optical coupler of the present invention has all made structural improvement to the coupling part at two ends.So optical coupler of the present invention is more durable, performance is also more reliable.
Claims (3)
1. a fiber coupler, for many optical fiber and light source mutually being coupled, one end co-integration of described many optical fiber is in a buncher, and this fiber coupler comprises:
Fiber adapter, is positioned at one end of described fiber coupler and has a circular cylindrical cavity, and described buncher can insert in the circular cylindrical cavity of described fiber adapter;
Wherein, have a notch configuration in described circular cylindrical cavity, the internal diameter of described notch configuration is greater than the internal diameter of described circular cylindrical cavity;
Many optical fiber in light source and buncher couple by described fiber coupler, can transmit to make the light signal from light source in each optical fiber successfully in buncher in many optical fiber;
The other end of described fiber coupler is used for being connected with a light source buckle, and a spring device is fixed at described other end place, and described spring device applies a thrust to light source, and described thrust makes to form a firm spacing between the fibre bundle end face of light source with buncher.
2. fiber coupler as claimed in claim 1, is characterized in that, the inwall of described notch configuration is provided with one of the convex thread and recessed screw thread of coupling mutually.
3. fiber coupler as claimed in claim 2, is characterized in that, the position corresponding with described notch configuration at one end place of described buncher has the another kind in the convex thread of described mutual coupling and recessed screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110048311.1A CN102650712B (en) | 2011-02-28 | 2011-02-28 | Fiber coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110048311.1A CN102650712B (en) | 2011-02-28 | 2011-02-28 | Fiber coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102650712A CN102650712A (en) | 2012-08-29 |
| CN102650712B true CN102650712B (en) | 2016-01-20 |
Family
ID=46692750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110048311.1A Expired - Fee Related CN102650712B (en) | 2011-02-28 | 2011-02-28 | Fiber coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102650712B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207840U (en) * | 1987-05-07 | 1988-08-31 | 浙江省医疗器械研究所 | Laser fibre-optic coupling device for diagnosing tumour |
| US6142676A (en) * | 1997-05-20 | 2000-11-07 | Adc Telecommunications, Inc. | Fiber connector and adaptor |
| CN2630875Y (en) * | 2003-07-24 | 2004-08-04 | 同济大学 | 1 to n conical optical fiber connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102581A (en) * | 1998-06-16 | 2000-08-15 | Lucent Technologies Inc. | Optical adapter including a ferrule assembly |
-
2011
- 2011-02-28 CN CN201110048311.1A patent/CN102650712B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207840U (en) * | 1987-05-07 | 1988-08-31 | 浙江省医疗器械研究所 | Laser fibre-optic coupling device for diagnosing tumour |
| US6142676A (en) * | 1997-05-20 | 2000-11-07 | Adc Telecommunications, Inc. | Fiber connector and adaptor |
| CN2630875Y (en) * | 2003-07-24 | 2004-08-04 | 同济大学 | 1 to n conical optical fiber connector |
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| Publication number | Publication date |
|---|---|
| CN102650712A (en) | 2012-08-29 |
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Granted publication date: 20160120 Termination date: 20160228 |