CN2824072Y - Optical splitting/combining apparatus - Google Patents
Optical splitting/combining apparatus Download PDFInfo
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- CN2824072Y CN2824072Y CN 200520045056 CN200520045056U CN2824072Y CN 2824072 Y CN2824072 Y CN 2824072Y CN 200520045056 CN200520045056 CN 200520045056 CN 200520045056 U CN200520045056 U CN 200520045056U CN 2824072 Y CN2824072 Y CN 2824072Y
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- fiber
- light
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The utility model relates to a light splitting and combining apparatus in the field of light communication. The utility model comprises a melting cone optical fiber and a beam expanding optical fiber which are mutually melted, wherein the melting cone optical fiber is composed of N single-mode optical fibers, and one end which is melted with the beam expanding optical fiber is used as a melting end; the fiber core end face of one end of the beam expanding optical fiber, which is melted with the melting cone optical fiber, is larger than the fiber core end faces of the single-mode optical fibers. The light splitting performance of the light splitting and combining apparatus produced by the utility model is similar to the traditional light splitter, but light combining performance is very different from the traditional design; in the aspect of light combination, the utility model has the advantage of no light energy loss in theory.
Description
Technical field
The utility model relates to a kind of Passive Optical Components of optical communication field, a kind of specifically separation/combination device.
Background technology
Separation/combination device: do not need extra power, only need incident beam, belong to inactive component, utilize the optical technology technology, realize that the shunt of light signal is descending and up.This device has very widely in occasions such as light transmission, light exchange, optical communications to be used.The manufacture craft of general optical splitter, earlier with two optical fiber a little twisting once, heating then, last drawing-down moulding.After wire drawing is finished, of input end being blocked, is exactly the optical splitter (as Fig. 1) of an one-to-two.Light signal is imported from left end, behind the process melting zone (coupling waist) that was heated, because the area of fibre core is little of can't keeping the degree of optical signal transmission separately herein, thereby produces energy and overflow and be dispensed into two single-mode fibers of right-hand member, thereby finished the decomposition of signal.
The spectroscopic behaviour of tradition optical splitter: incident light is from left end intake 100%, and the right-hand member two-port is exported with 50% light signal energy respectively.
The tradition optical splitter close optical property: the light signal energy of left end output is right-hand member two-port intake 50% superimposed separately.About 100% the luminous energy that has been the loss of overall optical passage.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of separation/combination device, with the effect that reaches the low-loss beam split, closes light.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of separation/combination device, the melting cone fiber, the expanded core fiber that comprise mutual welding, described melting cone fiber is made up of N root single-mode fiber, with an end of expanded core fiber welding be melted ends, the fibre core end face of an end of described expanded core fiber and melting cone fiber welding is greater than the fibre core end face of single-mode fiber.The scope of described N is 2-4.The fibre core face area of described expanded core fiber is close with the fibre core face area of melted ends.
The separation/combination device of the utility model made, similar to traditional optical splitter on spectroscopic behaviour.N is 2 o'clock, and during left end incident light energy 100%, the right-hand member two-port is exported with 50% light signal energy respectively.Closing on the optical property, then with traditional design very big difference is being arranged: during intake 100%, the light signal energy of left end output is its stack to the right-hand member two-port separately, promptly 200%.
Promptly closing aspect the light, the utility model does not have light energy losses in theory.
Description of drawings
Fig. 1 is the manufacture craft synoptic diagram of traditional optical splitter.
Fig. 2 is the design sketch that single-mode fiber is heated into expanded core fiber in the utility model.
Fig. 3 is the synoptic diagram of preceding two steps of the present utility model.
Fig. 4 is the utility model step 4 synoptic diagram.
Embodiment
With 1: 2 separation/combination device was example:
1) earlier with two single-mode fibers a little twisting once, heating is welded together then, last drawing-down moulding.When heating, several thermals source all can adopt, and comprising microheater, use flame burner then best.In the operating process of reality, monitor coupling ratio, and regulate by the control drawing process.Welding, the wire drawing of optical fiber are prior art, repeat no more here.
2) after step is finished, block, form half root melting cone fiber 3 from melted ends 2.See Fig. 3.
3) end with another root single-mode fiber heats, and must not stretch, and at this moment the fibre core 1 of optical fiber forms expanded core fiber with expanded by heating, sees Fig. 2.
4) when the fibre core 1 end face size of the heating end face of expanded core fiber 4 and half root melting cone fiber is close (close size helps improving coupling efficiency), the expanded core fiber 4 of expanded by heating is passed through the effluve welding with melting cone fiber 3 two ends, just can form 1: 2 separation/combination device.See Fig. 4.
1: 3, the making of 1: 4 separation/combination device and 1: 2 were similar, no longer described in detail.
Claims (3)
1. separation/combination device, it is characterized in that: the melting cone fiber (3), the expanded core fiber (4) that comprise mutual welding, described melting cone fiber is made up of N root single-mode fiber, with an end of expanded core fiber (4) welding be melted ends (2), fibre core (1) end face of an end of described expanded core fiber (4) and melting cone fiber (3) welding is greater than the fibre core end face of single-mode fiber.
2. separation/combination device according to claim 1 is characterized in that, the scope of described N is 2-4.
3. separation/combination device according to claim 1 is characterized in that, fibre core (1) face area of described expanded core fiber (4) is close with the fibre core face area of melted ends (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045056 CN2824072Y (en) | 2005-09-15 | 2005-09-15 | Optical splitting/combining apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045056 CN2824072Y (en) | 2005-09-15 | 2005-09-15 | Optical splitting/combining apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824072Y true CN2824072Y (en) | 2006-10-04 |
Family
ID=37033187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045056 Expired - Fee Related CN2824072Y (en) | 2005-09-15 | 2005-09-15 | Optical splitting/combining apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824072Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475164A (en) * | 2018-05-09 | 2019-11-19 | 北京吉视汇通科技有限责任公司 | Optical splitter and single fiber bi-directional passive light network transmission system |
-
2005
- 2005-09-15 CN CN 200520045056 patent/CN2824072Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475164A (en) * | 2018-05-09 | 2019-11-19 | 北京吉视汇通科技有限责任公司 | Optical splitter and single fiber bi-directional passive light network transmission system |
| CN110475164B (en) * | 2018-05-09 | 2021-11-16 | 北京吉视汇通科技有限责任公司 | Optical splitter and single-fiber bidirectional passive optical network transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |