CN102650712A - Optical fiber coupler - Google Patents
Optical fiber coupler Download PDFInfo
- Publication number
- CN102650712A CN102650712A CN2011100483111A CN201110048311A CN102650712A CN 102650712 A CN102650712 A CN 102650712A CN 2011100483111 A CN2011100483111 A CN 2011100483111A CN 201110048311 A CN201110048311 A CN 201110048311A CN 102650712 A CN102650712 A CN 102650712A
- Authority
- CN
- China
- Prior art keywords
- fiber coupler
- optical fiber
- fiber
- cylindrical cavity
- coupler
- 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.)
- Granted
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides an optical fiber coupler which is used for coupling at least one optical fiber with a light source. One end of the at least one optical fiber is integrated into a buncher, the optical fiber coupler comprises an optical fiber adapter which is positioned at one end of the optical fiber coupler and is provided with a cylindrical cavity, the buncher can be inserted into the cylindrical cavity of the optical fiber adapter, wherein the cylindrical cavity is internally provided with a notch structure, and the inner diameter of the notch structure is larger than that of the cylindrical cavity. An optical fiber bundle can be fixed firmly, and a stable interval can be formed between the light source and the optical fiber due to the special structure design of the optical fiber coupler.
Description
Technical field
The present invention relates to the technical field of the communication apparatus, relate in particular 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 significant feature is that light signal is assigned to many optical fiber from light source, i.e. 1 * N.Said light source also can be the form of sub-thread or multiply optical fiber.We can say that fiber coupler is the maximum optical fibre device of present use amount.Since the progressively fiberize of local communication network, the rising of Metropolitan Area Network (MAN) and user access networks demand, the aggregate demand in global in recent years fiber coupler market constantly enlarges, and the annual growth of estimating following 10 years will be about 20%.
Though the existing multiple fiber coupler in the whole world, and new varieties at present is also in continuous appearance, still there is very large demand in industry for dependable performance, stable fiber coupler.
Usually, the main optical characteristics index of the quality of measurement fiber coupler is for inserting loss (Insertloss) and return loss (Return loss).In addition, the physical characteristics indexs such as insertion core end face geometric parameter that influence product quality reliability are also more and more paid attention to by system manufacturer or high-end customer.
But inventor of the present invention notices that all there is certain limitation in the various junctures that existing fiber coupler adopted.Particularly, the fiber coupler of prior art just generally the unsteady problem that is coupled can occur in case process is used for a long time, inserts loss and return loss thereby will increase.These problems will have a strong impact on the stability and the reliability of optical delivery.
Summary of the invention
To the above-mentioned deficiency of prior art, the present invention has provided a kind of structure unique optical fiber coupling device.
Particularly; The invention provides a kind of fiber coupler; Be used at least one optical fiber and light source are coupled each other, an end of said at least one optical fiber is integrated in the buncher jointly, and this fiber coupler comprises: fiber adapter; Be positioned at an end of said fiber coupler and have a circular cylindrical cavity, said buncher can insert in the circular cylindrical cavity of said fiber adapter; Wherein, have a notch configuration in the said circular cylindrical cavity, the internal diameter of said notch configuration is greater than the internal diameter of said circular cylindrical cavity.
According to a preferred embodiment of the present invention, in above-mentioned fiber coupler, the inwall of said notch configuration is provided with one of convex thread and recessed screw thread of mutual coupling.
According to another preferred embodiment of the present invention, in above-mentioned fiber coupler, an end place of said buncher has the convex thread of said mutual coupling and the another kind in the recessed screw thread with the corresponding position of said notch configuration.
According to another preferred embodiment of the present invention, in above-mentioned fiber coupler, the other end of said fiber coupler is used for being connected with a light source buckle, and a spring device is fixed at said other end place.
Fiber coupler of the present invention has very special structure design.On the one hand, this fiber coupler can firmly fix fibre bundle.On the other hand, this fiber coupler also can make the more stable spacing of formation between light source and the optical fiber.Therefore, fiber coupler of the present invention can form more stable optical delivery effect.
Should be appreciated that the above generality of the present invention is described and following detailed description all is exemplary and illustrative, and be intended to further explanation is provided for as claimed in claim the present invention.
Description of drawings
Accompanying drawing mainly is to be used to provide the present invention is further understood.Accompanying drawing shows embodiments of the invention, and plays the effect of explaining the principle of the invention with this instructions.In the accompanying drawing:
Fig. 1 shows the cut-open view according to the primary structure of fiber coupler of the present invention.
Fig. 2 schematically shows the applied environment of fiber coupler of the present invention.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.Wherein, identical label is used to represent identical element, and the concrete technical term in the following description does not constitute the substantial limit to technical scheme of the present invention itself.In fact, the various variations that those skilled in the art knew all allow.
At first with reference to figure 2, Fig. 2 schematically shows the applied environment of optical coupler of the present invention.As shown in the figure, fiber coupler 2 mainly is to be used for light source 1 and many optical fiber 3 are coupled, so that can successfully transmit in each bar in these many optical fiber 3 from the light signal of light source 1.
Usually, before optical fiber 3 being coupled into fiber coupler 2, need will these many optical fiber 3 an end be integrated in jointly in the buncher (label 101 among Fig. 1 is represented).The concrete structure improvement of optical coupler 2 of the present invention below will be described with reference to figure 1 in detail.
As shown in Figure 1, fiber coupler of the present invention has further comprised a fiber adapter 102 than the traditional optical coupling mechanism, and this fiber adapter 102 is positioned at an 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 further is provided with a notch configuration 104, and the internal diameter of this notch configuration 104 is greater than the internal diameter of circular cylindrical cavity 103.This notch configuration 104 mainly is to be used to be coupled buncher 101.In fact, insert being provided with and notch configuration 104 corresponding coupled structures an of end of fiber coupler with these notch configuration 104 corresponding positions at the needs of buncher 101.This coupled structure can be selected traditional buckle coupling mechanism for use.Preferably, notch configuration 104 is selected the mode and buncher 101 interlocks of screw thread couple for use.In other words, can be provided with one of convex thread and recessed screw thread of mutual coupling on the inwall of notch configuration 104, an end place of buncher 101 has the convex thread of said mutual coupling and the another kind in the recessed screw thread with notch configuration 104 corresponding positions simultaneously.
Practice shows that with coupled structure, promptly notch configuration is arranged at the stability that end face position far away will promote whole coupled structure of leaving of hub, thereby promotes Optical Fiber Transmission efficient.
On the other hand, as stated, 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, for example screw thread couple or buckle coupling.But along with the increase of service time, it is insecure that above-mentioned coupling scheme will cause being coupled.With the screw thread couple mode is example, and through using for a long time, wearing and tearing will appear in screw thread, and then it is loosening to make that coupling part takes place, and influences the effect of optical delivery, increases return loss and inserts loss.
To this deficiency, the present invention is provided with a spring device 105 at the end place with the light source coupling of optical coupler.When reality was used, light source preferably was fixed to optical coupler through the mode of buckle.When buckle, this spring device 105 will apply a thrust to light source, make light source with forming a firm spacing between the fibre bundle end face 106 of buncher 101, thereby increase 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 been 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 (4)
1. a fiber coupler is used at least one optical fiber and light source are coupled each other, and an end of said at least one optical fiber is integrated in the buncher jointly, and this fiber coupler comprises:
Fiber adapter is positioned at an end of said fiber coupler and has a circular cylindrical cavity, and said buncher can insert in the circular cylindrical cavity of said fiber adapter;
Wherein, have a notch configuration in the said circular cylindrical cavity, the internal diameter of said notch configuration is greater than the internal diameter of said circular cylindrical cavity.
2. fiber coupler as claimed in claim 1 is characterized in that, the inwall of said notch configuration is provided with one of convex thread and recessed screw thread of mutual coupling.
3. fiber coupler as claimed in claim 1 is characterized in that, an end place of said buncher has the convex thread of said mutual coupling and the another kind in the recessed screw thread with the corresponding position of said notch configuration.
4. fiber coupler as claimed in claim 1 is characterized in that, the other end of said fiber coupler is used for being connected with a light source buckle, and a spring device is fixed at said other end place.
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 true CN102650712A (en) | 2012-08-29 |
| CN102650712B 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 (4)
| 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 |
| JP2000047062A (en) * | 1998-06-16 | 2000-02-18 | Lucent Technol Inc | Optical adapter including ferrule assembly |
| 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 |
-
2011
- 2011-02-28 CN CN201110048311.1A patent/CN102650712B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| JP2000047062A (en) * | 1998-06-16 | 2000-02-18 | Lucent Technol Inc | Optical adapter including ferrule assembly |
| CN2630875Y (en) * | 2003-07-24 | 2004-08-04 | 同济大学 | 1 to n conical optical fiber connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102650712B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102904641B (en) | Communication system based on few-mode optical fiber | |
| CN103901538A (en) | Manufacturing method of N*1 high-power fiber laser beam combiner | |
| WO2014062272A3 (en) | Backwards compatible multi-core optical fiber | |
| CN103364868A (en) | Gradient-index multimode optical fibers for optical fiber connectors | |
| CN102650712B (en) | Fiber coupler | |
| CN201845093U (en) | Optical fiber structure | |
| CN202815268U (en) | LC duplex SC type integral optical fiber adapter | |
| CN208607384U (en) | A kind of photonic crystal fiber polarizing beam splitter | |
| CN205091483U (en) | Lock pin formula wavelength division multiplexer | |
| CN212781435U (en) | Optical fiber splitter convenient for wiring | |
| CN106209219A (en) | Joints of optical fibre insertion loss detecting system | |
| CN207336817U (en) | Optical fiber connector | |
| CN206161922U (en) | A thick external diameter tail optical fiber of polychrome for having jumper connection application scenario | |
| CN204964806U (en) | Single mode fiber tail optical fiber | |
| CN203811840U (en) | Optical-fiber reflector for monitoring PON network | |
| CN204694884U (en) | A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre | |
| CN202149947U (en) | Optical fiber interface assembly | |
| CN204882956U (en) | Flat fiber optic cable line connecting device | |
| CN203037889U (en) | Easy-to-splice twin-core optical fiber | |
| CN204069008U (en) | A kind of optical fiber network interface Loop Back measurement jig | |
| CN207946565U (en) | A kind of passive optical fiber devices device | |
| CN202189171U (en) | Tail-fiber type integral light receiving and transmitting module | |
| CN203688852U (en) | Ceramic ferrule for optic fiber connector | |
| CN219533452U (en) | Multimode optical fiber structure | |
| CN201740892U (en) | Device for fixing tail fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160228 |