CN1523385A - Multiple output optical fiber head for optical fiber coupling - Google Patents
Multiple output optical fiber head for optical fiber coupling Download PDFInfo
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- CN1523385A CN1523385A CNA031061206A CN03106120A CN1523385A CN 1523385 A CN1523385 A CN 1523385A CN A031061206 A CNA031061206 A CN A031061206A CN 03106120 A CN03106120 A CN 03106120A CN 1523385 A CN1523385 A CN 1523385A
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- optical fiber
- hole
- screw thread
- diameter end
- grappling fixture
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Abstract
The invention is an optical-fiber coupling multiple output optical fiber head, including: a front inner connector having big- and small- diameter ends, where there is a screw thread on the big-diameter end and there is a screw thread on the root of the small-diameter end, there is a through hole in the middle of the small-diameter end, and the through hole fixes the optical fiber core; a front fixing head, having thick and thin ends, there is a through hole in the middle of the front fixing head, there is a inner screw thread on the thick end of the through hole, the front inner connector is inserted in the through hole of the front fixing head, and the screw thread on the small-diameter end is linked with the inner screw thread of the front fixing head; a back inner connector, having big- and small- ends, there is a screw thread on the big-diameter, there is a through hole in the middle of the big-diameter end, and the through hole fixes the part with coating of the optical fiber; a back fixing head, one end has screw thread, and the middle through hole is step-shaped, and there is an inner screw thread on the through hole; the back inner connector is inserted in the back fixing head and linked with the back fixing head by the screw thread; a linking part; the big-diameter end of the front inner connector is linked with the linking part by the screw thread; the screw thread end of the back fixing head is linked with the linking part through the screw thread.
Description
Technical field
The invention provides a kind of optical fiber output optical fibre head, be meant that especially a kind of optical fiber is coupled with many output optical fibre heads.
Background technology
At aspects such as medical treatment, pumping, materials processing and processing, need very big laser fiber coupling output power, and effective ways of increase laser fiber coupling output power are the optical fiber coupling output that realizes the high power semiconductor lasers linear array with optical-fiber bundle array.In addition, because the rapid increase of broadband, high speed communication business need be lined up multifiber optical-fiber bundle array as input, output interface.Therefore, many output optical fibre heads are used more and more widely.
At present, the method the most widely that multifiber output is adopted is with optical cement (normally 353ND) multifiber to be bonded in the optical fiber head, then to optical fiber head grind, PROCESS FOR TREATMENT such as polishing.Using this multifiber delivery has a very large shortcoming, and promptly optical fiber head very easily burns.This is because the optical fiber of conduction and high power laser, the power density of its fiber end face is very high usually, if optical fiber head treatment process defectiveness, the light output end injustice of multifiber, cut is more or the surperficial dust etc. that is stained with, the capital makes the optical fiber head local temperature very high, causes the optical cement charing of bonding optical fiber; Volatilize the material of similar oily after the optical cement charing, attached to fiber end face, the fiber end face temperature is further raise, and the rising of fiber end face temperature has caused the charing volatilization of optical fiber depths on first watch optical cement again, and such vicious cycle will soon make optical fiber head burn.
Summary of the invention
The objective of the invention is to, manufacture and design a kind of optical fiber and be coupled with many output optical fibre heads, it can solve the problem that the multifiber delivery easily burns.
A kind of optical fiber of the present invention is coupled with many output optical fibre heads, it is characterized in that, comprising:
Grappling fixture in before one, before this in grappling fixture be divided into bigger diameter end and miner diameter end, there is screw thread at the place at bigger diameter end, at the root of miner diameter end screw thread is arranged, there is through hole the centre, before this in grappling fixture be used for fixing the core of optical fiber;
Fixed head before one, this preceding fixed head are divided into butt end and carefully hold, and there is through hole the centre, at the butt end place of through hole internal thread is arranged, and in the through hole of fixed head, the screw thread of preceding interior grappling fixture miner diameter end and the internal thread of preceding fixed head were spirally connected before grappling fixture was inserted in this was preceding;
Grappling fixture in one back, grappling fixture is divided into bigger diameter end and miner diameter end in this back, and screw thread is arranged on bigger diameter end, and there is through hole the centre, and grappling fixture is used for fixing the part of fibre ribbon coat in this back;
One back fixed head, an end of this back fixed head has screw thread, and middle through hole is step-like, and an internal thread is arranged on through hole; Grappling fixture is inserted in the fixed head of back and also is spirally connected with it in this back;
A junction branch, there is screw thread at the two ends of the through hole of this coupling part;
According to said structure, the bigger diameter end of interior grappling fixture and the screw thread of coupling part are spirally connected before this; The thread end of this back fixed head and the screw thread of coupling part are spirally connected.
Wherein also comprise a set collar, this set collar has an internal thread, and this set collar is used for being spirally connected with other optical fiber head flanges, and this Fixing shrink ring is connected between preceding fixed head and the coupling part.
The miner diameter end of grappling fixture is a cone structure in wherein, and the end is many valve structures.
Wherein the through hole of preceding fixed head is a cone structure.
Wherein the miner diameter end of grappling fixture is a cone structure in this back, and the end is many valve structures.
Wherein the middle part of the through hole of coupling part is a cone structure.
Description of drawings
For further specifying technology contents of the present invention, be described in detail as follows below in conjunction with embodiment and accompanying drawing, wherein:
Fig. 1 is the structural representation after the present invention assembles;
Fig. 2 is the preceding interior grappling fixture structural representation among Fig. 1;
Fig. 3 is the preceding fixed head structural representation among Fig. 1;
Fig. 4 is the back interior grappling fixture structural representation among Fig. 1;
Fig. 5 is the back fixed head structural representation among Fig. 1;
Fig. 6 is the set collar structural representation among Fig. 1;
Fig. 7 is the coupling part structural representation among Fig. 1.
Embodiment
A kind of optical fiber of the present invention is coupled with many output optical fibre heads, comprising:
At first see also illustrated in figures 1 and 2, before one in grappling fixture 1, before this in grappling fixture 1 be divided into bigger diameter end 11 and miner diameter end 12, there is screw thread 111 at 11 places at bigger diameter end, root at miner diameter end 12 has screw thread 121, and there is through hole 13 centre, and interior grappling fixture 1 is used for fixing the bare fibre that removes covering before this; The miner diameter end 12 of grappling fixture 1 is a cone structure in wherein, and the end is many valve structures.
In conjunction with consulting Fig. 1 and Fig. 3, fixed head 2 before one, should preceding fixed head 2 be divided into butt end 21 and thin end 22, there is through hole 23 centre, there is internal thread 231 at butt end 21 places at through hole 23, should be inserted in the through hole 23 of preceding fixed head 2 by preceding interior grappling fixture 1, the screw thread of preceding interior grappling fixture 1 miner diameter end 12 and the internal thread 231 of preceding fixed head 2 are spirally connected; The through hole 23 of wherein preceding fixed head 2 is a cone structure.Because of the miner diameter end 12 of grappling fixture 1 in preceding is a cone structure, and the end is many valve structures, through hole 23 because of preceding fixed head 2 is a cone structure again, when so grappling fixture 1 is spirally connected with preceding fixed head 2 in current, the opening of miner diameter end 12 of grappling fixture 1 is more and more littler in before can making, can be firm clamp the naked fibre that removes covering.
In conjunction with consulting Fig. 1 and Fig. 4, grappling fixture 3 in the back, grappling fixture 3 is divided into bigger diameter end 31 and miner diameter end 32 in this back, and screw thread 311 is arranged on bigger diameter end 31, and there is through hole 33 centre, and grappling fixture 3 is used for fixing the part of fibre ribbon coat in this back; The miner diameter end 32 that wherein is somebody's turn to do grappling fixture 3 in the back is a cone structure, and the end is many valve structures.
In conjunction with consulting Fig. 1 and Fig. 5, a back fixed head 4, an end of this back fixed head 4 has screw thread 41, and the through hole 42 of centre is step-like, and an internal thread 421 is arranged on through hole 42; Grappling fixture 3 is inserted in the back fixed head 4 and also is spirally connected with it in this back;
In conjunction with consulting Fig. 1 and Fig. 7, a junction divides 6, and there are screw thread 611 and 612 in the two ends of the through hole 61 of this coupling part 6; Wherein the middle part of the through hole 61 of coupling part 6 is a cone structure.
According to said structure, bigger diameter end 11 of interior grappling fixture 1 is spirally connected with the screw thread 612 of coupling part 6 before this; Screw thread 41 ends of this back fixed head 4 and the screw thread 611 of coupling part 6 are spirally connected.Because of the miner diameter end 32 of grappling fixture 3 in the back is a cone structure, and the end is many valve structures, middle part because of the through hole 61 of coupling part 6 is a cone structure again, so when back fixed head 4 is spirally connected with coupling part 6, can make the end of the miner diameter end 32 of grappling fixture 3 in the back receive tighter and tighter, thereby clamp the optical fiber that has coat.
Please consult Fig. 1 and Fig. 6 again, the present invention also comprises a set collar 5, and this set collar 5 has an internal thread 51, and this set collar 5 is used for being spirally connected with other optical fiber head flanges, and this set collar 5 is socketed between preceding interior grappling fixture 1 and the coupling part 6.
The advantage that the present invention compared with prior art has:
The present invention is that a kind of optical fiber is coupled with many output optical fibre heads.In the optical fiber coupling of high power laser, compare with many output optical fibre heads with traditional optical fiber coupling, the present invention has very big advantage.Usually used optical fiber coupling is with the 353ND optical cement with many output optical fibre heads or other concentration is rarer, solidify back particle glue very little, that can grind simultaneously and polish with optical fiber head is adhesively fixed on multifiber in the optical fiber head, this structure is in the optical fiber coupling of high power laser, very high in optical fiber head output beam part owing to laser beam power density, be easy to make the optical fiber head local temperature very high, cause the optical cement charing of bonding optical fiber; Volatilize the material of similar oily after the optical cement charing, attached to fiber end face, the fiber end face temperature is further raise, and the rising of fiber end face temperature has caused the charing volatilization of optical fiber depths on first watch optical cement again, and such vicious cycle will soon make optical fiber head burn.
Optical fiber coupling of the present invention is not bonding by optical cement with many output optical fibre heads, but multifiber is fixed in the optical fiber head by mechanical hook-up, so just prevented owing to optical fiber head local temperature high the problem that the continuous degree of depth charing of optical cement causes optical fiber head to burn.
Claims (6)
1. an optical fiber coupling is characterized in that with many output optical fibre heads, comprising:
Grappling fixture in before one, before this in grappling fixture be divided into bigger diameter end and miner diameter end, there is screw thread at the place at bigger diameter end, at the root of miner diameter end screw thread is arranged, there is through hole the centre, before this in grappling fixture be used for fixing the core of optical fiber;
Fixed head before one, this preceding fixed head are divided into butt end and carefully hold, and there is through hole the centre, at the butt end place of through hole internal thread is arranged, and in the through hole of fixed head, the screw thread of preceding interior grappling fixture miner diameter end and the internal thread of preceding fixed head were spirally connected before grappling fixture was inserted in this was preceding;
Grappling fixture in one back, grappling fixture is divided into bigger diameter end and miner diameter end in this back, and screw thread is arranged on bigger diameter end, and there is through hole the centre, and grappling fixture is used for fixing the part of fibre ribbon coat in this back;
One back fixed head, an end of this back fixed head has screw thread, and middle through hole is step-like, and an internal thread is arranged on through hole; Grappling fixture is inserted in the fixed head of back and also is spirally connected with it in this back;
A junction branch, there is screw thread at the two ends of the through hole of this coupling part;
According to said structure, the bigger diameter end of interior grappling fixture and the screw thread of coupling part are spirally connected before this; The thread end of this back fixed head and the screw thread of coupling part are spirally connected.
2. optical fiber as claimed in claim 1 is coupled with many output optical fibre heads, it is characterized in that wherein also comprise a set collar, this set collar has an internal thread, this set collar is used for being spirally connected with other optical fiber head flanges, and this Fixing shrink ring is connected between preceding fixed head and the coupling part.
3. optical fiber coupling as claimed in claim 1 is characterized in that with many output optical fibre heads wherein the miner diameter end of preceding interior grappling fixture is a cone structure, and the end is many valve structures.
4. optical fiber coupling as claimed in claim 1 is characterized in that with many output optical fibre heads wherein the through hole of preceding fixed head is a cone structure.
5. optical fiber coupling as claimed in claim 1 it is characterized in that wherein the miner diameter end of grappling fixture is a cone structure in this back, and the end is many valve structures with many output optical fibre heads.
6. optical fiber coupling as claimed in claim 1 is characterized in that with many output optical fibre heads wherein the middle part of the through hole of coupling part is a cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031061206A CN1300614C (en) | 2003-02-18 | 2003-02-18 | Multiple output optical fiber head for optical fiber coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031061206A CN1300614C (en) | 2003-02-18 | 2003-02-18 | Multiple output optical fiber head for optical fiber coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523385A true CN1523385A (en) | 2004-08-25 |
| CN1300614C CN1300614C (en) | 2007-02-14 |
Family
ID=34282682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031061206A Expired - Fee Related CN1300614C (en) | 2003-02-18 | 2003-02-18 | Multiple output optical fiber head for optical fiber coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1300614C (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157910A (en) * | 1984-08-29 | 1986-03-25 | Fujitsu Ltd | Manufacture of ferrule for optical connector |
| CN2088258U (en) * | 1990-12-30 | 1991-11-06 | 东南大学 | Adjustable optical fiber connector |
| CN2185445Y (en) * | 1994-01-27 | 1994-12-14 | 李学文 | Optical fibre connector |
-
2003
- 2003-02-18 CN CNB031061206A patent/CN1300614C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1300614C (en) | 2007-02-14 |
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| Date | Code | Title | Description |
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| 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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20040825 Assignee: Hi-Tech Optoelectronics Co.,Ltd. Assignor: Semiconductor Inst., Chinese Academy of Sciences Contract record no.: 2010110000028 Denomination of invention: Multiple output optical fiber head for optical fiber coupling Granted publication date: 20070214 License type: Exclusive License Record date: 20100304 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070214 Termination date: 20130218 |