CN1932566A - Optical splitter/combiner and producing method thereof - Google Patents
Optical splitter/combiner and producing method thereof Download PDFInfo
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- CN1932566A CN1932566A CN 200510029706 CN200510029706A CN1932566A CN 1932566 A CN1932566 A CN 1932566A CN 200510029706 CN200510029706 CN 200510029706 CN 200510029706 A CN200510029706 A CN 200510029706A CN 1932566 A CN1932566 A CN 1932566A
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- fiber
- separation
- combination device
- welding
- expanded
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to a light splitting/combining device in the light communication field. It wrings the N monomode light and heats to draw it into the module, then to cut in the fused region and remove one end to form the melting cone fiber; then to heat the other monomode optical fiber to form the extender fiber, last to fuse the two ends of the extender fiber and the melting cone fiber. The invention is as same as the traditional light splitting device and it has no light energy loss in the light combining.
Description
Technical field
The present invention 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 problem to be solved in the present invention provides a kind of separation/combination device and preparation method thereof, with the effect that reaches the low-loss beam split, closes light.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
1) with the twisting of N root single-mode fiber, heating, drawing-down moulding then;
2) cut from melting zone, remove an end, form melting cone fiber;
3) another root single-mode fiber is heated, form expanded core fiber;
4) with the expanded core fiber and the welding of melting cone fiber two ends of expanded by heating.
Preferably, the scope of N is 2-4; Select flame burner during heating for use; Adopt effluve to carry out welding.
Further, the present invention also provides 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 made of the present invention, 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 present invention 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 among the present invention.
Fig. 3 is the synoptic diagram of preceding two steps of the present invention.
Fig. 4 is step 4 synoptic diagram of the present invention.
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 (7)
1. the method for making of a separation/combination device is characterized in that:
1) with the twisting of N root single-mode fiber, heating, drawing-down moulding then;
2) cut from melting zone, remove an end, form melting cone fiber (3);
3) another root single-mode fiber is heated, form expanded core fiber (4);
4) with the expanded core fiber (4) of expanded by heating and melting cone fiber (3) two ends welding.
2. the method for making of separation/combination device according to claim 1 is characterized in that, the scope of N is 2-4.
3. the method for making of separation/combination device according to claim 1 is characterized in that, selects flame burner during heating for use.
4. the method for making of separation/combination device according to claim 1 is characterized in that, adopts effluve to carry out welding.
5. 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.
6. separation/combination device according to claim 5 is characterized in that, the scope of described N is 2-4.
7. separation/combination device according to claim 5 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 |
|---|---|---|---|
| CNB2005100297061A CN100399084C (en) | 2005-09-15 | 2005-09-15 | Optical splitter/combiner and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100297061A CN100399084C (en) | 2005-09-15 | 2005-09-15 | Optical splitter/combiner and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1932566A true CN1932566A (en) | 2007-03-21 |
| CN100399084C CN100399084C (en) | 2008-07-02 |
Family
ID=37878490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100297061A Expired - Fee Related CN100399084C (en) | 2005-09-15 | 2005-09-15 | Optical splitter/combiner and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100399084C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944917A (en) * | 2012-11-22 | 2013-02-27 | 珠海保税区光联通讯技术有限公司 | Light-splitting light-integrating device, production method thereof and erbium-doped optical fiber amplifier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136592B (en) * | 1982-03-11 | 1986-03-05 | Int Standard Electric Corp | Method of fabricating a fibre optic coupler |
| US5491764A (en) * | 1994-05-31 | 1996-02-13 | Tacan Corporation | Narrowband twisted optical fiber wavelength division multiplexer |
| US5889908A (en) * | 1997-07-31 | 1999-03-30 | Corning Incorporated | 1xN fiber optic coupler/splitter |
| KR100288445B1 (en) * | 1997-12-30 | 2001-05-02 | 윤종용 | Method for coupling two optical fibers one of which has cladding diameter different from the other |
| CN2748933Y (en) * | 2004-10-15 | 2005-12-28 | 河南大学 | N*1 optical fiber beam combiner |
-
2005
- 2005-09-15 CN CNB2005100297061A patent/CN100399084C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944917A (en) * | 2012-11-22 | 2013-02-27 | 珠海保税区光联通讯技术有限公司 | Light-splitting light-integrating device, production method thereof and erbium-doped optical fiber amplifier |
| CN102944917B (en) * | 2012-11-22 | 2014-01-22 | 珠海保税区光联通讯技术有限公司 | Erbium-doped optical fiber amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100399084C (en) | 2008-07-02 |
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Effective date of registration: 20120416 Address after: 200336 Shanghai city Minhang District Honggu Road No. 150 Patentee after: Shanghai B-STAR Co., Ltd. Address before: 200336 Shanghai city Minhang District Honggu Road No. 150 Co-patentee before: Shanghai Sinoceramics, Inc. Patentee before: Shanghai B-STAR Co., Ltd. |
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Owner name: SHANGHAI FUTURE BROADBAND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI FUTURE BROADBAND TECHNOLOGY AND APPLICATION ENGINEERING RESEARCH CENTER CO., LTD. |
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Address after: 200336 Shanghai city Minhang District Honggu Road No. 150 Patentee after: Shanghai B-Star Broadband Technology Co., Ltd. Address before: 200336 Shanghai city Minhang District Honggu Road No. 150 Patentee before: Shanghai B-STAR Co., Ltd. |
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