CN1542476A - Optical fiber end face forming method and fiber heat sealer used thereof - Google Patents
Optical fiber end face forming method and fiber heat sealer used thereof Download PDFInfo
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- CN1542476A CN1542476A CNA03127689XA CN03127689A CN1542476A CN 1542476 A CN1542476 A CN 1542476A CN A03127689X A CNA03127689X A CN A03127689XA CN 03127689 A CN03127689 A CN 03127689A CN 1542476 A CN1542476 A CN 1542476A
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Abstract
The present invention relates to large core fiber end forming method and apparatus, and belongs to the field of photoelectronic and information communication technology. The improved fiber welding machine has electrode capable of moving axially and corresponding motion controller. At the same time, the improve fiber welding machine has even higher discharge current and even longer discharge time to raise the heating temperature for melting quartz fiber with outer diameter up to 1500 micron. During drawing fiber, the electrode in the welding machine can move in the same speed and direction as the fiber fixture to avoid breaking of great diameter fiber and couple great power laser array with fiber or fiber bundle.
Description
Technical field
The present invention relates to a kind of large core fiber end face forming method and equipment thereof, belong to photoelectron and ICT (information and communication technology).
Background technology
The high-power semiconductor laser technology is one of important technology basis of Developing Defence Industry, its development will directly promote fuse, follow the tracks of, guidance, weapon simulation, igniting blasting, radar, night vision, the development of technology such as Target Recognition and antagonism also is with a wide range of applications in fields such as communication, medical science, industry.In many application, require semiconductor laser array and optical fiber or fiber bundle coupling to be integral, as the semiconductor laser pumping source of semiconductor laser scalpel, all solid state laser, be used for semiconductor laser system that materials processing handles etc.Realize this coupling generally need carry out welding to aforementioned optical fiber, draw the awl or end face make sphere lens.
Generally the docking of optical fiber and optical fiber, fiber fuse draws awl, make optical fibre microlens etc. adopts optical fiber splicers to finish.Therefore, optical fiber splicer also is an indispensable equipment in national defence, the scientific research.
Beam shaping and the common multimode silica fibre that needs to adopt the big core diameter of 200～1000 μ m of coupling for high power semiconductor lasers, laser array and folded battle array.Present existing optical fiber splicer optical fiber splicer is made up of body, fiber clamp, fiber clamp mobile device, welding point finder, electrode and control system, can not fusion and draw awl to the silica fibre of this big core diameter.Because the general arc discharge mode that heat sealing machine adopted, when the silica fibre external diameter surpassed 250 μ m, the electrical discharge arc heating-up temperature did not reach the melt temperature of silica fibre.Simultaneously, electrode acts on the optical fiber part, and temperature Centralized is broken optical fiber when not reaching required tapering.
Summary of the invention
The purpose of this invention is to provide a kind of large core fiber end face forming method of simple to operate, good reproducibility and can control automatically, the corresponding equipment of dependable performance, to the silica fibre of optical fiber external diameter between 200～1500 μ m, can dock and can make tapered fibers or make the spheroidal lens at end face.
For achieving the above object, the present invention transforms traditional optical fiber splicer structure and performance, makes the electrode of optical fiber splicer can be along relative motion between optical fiber axial direction and the optical fiber stiff end, and has increased the device of this relative motion of control corresponding.Simultaneously improved optical fiber splicer can be provided with bigger discharge current, longer discharge time to improve heating-up temperature, guarantees that external diameter is that the silica fibre of 200～1500 μ m can both fusion.
Concrete method for making is
1, two fiber end faces are cut flat with cutter, be pressed in the V-type groove of fiber clamp on the optical fiber splicer, two optical fiber advance with identical speed relative direction and close up and welding behind arc discharge heating and melting optical fiber.
2, the optical fiber after the above-mentioned welding of adjustment makes electrode leave the welding point.
3, open discharge switch, the optical fiber part is heated fusion when arc discharge, the motor motor that stepping is moved with the control sparking electrode that the stepping of control fiber clamp is moved moves under control of microcomputer, the optical fiber part has formed conical and has been broken in conical tip subsequently and formed end-cone shape optical fiber, and its tapering is influenced by discharge current and translational speed.
4, make the spheroidal lens as need at fiber end face, can continue heating to the above-mentioned optical fiber conical end that makes with arc discharge method, its end face is shrunk to spheroidal automatically because of surface tension effects, and the radius-of-curvature of this spheroidal is with changing discharge current and discharge time.
The invention solves welding, fused biconical taper and the making spherical end surface problem of non-standard silica fibre.Can the welding external diameter be the silica fibre of 200～1500 μ m not only, and can make optical fibre microlens and tapered fibers and optical fiber microprobe.The usable range of optical fiber splicer is widened greatly, high-power semiconductor laser array and optical fiber or fiber bundle coupling can well be realized.
Embodiment
Below by embodiment the present invention is specifically described:
When one, the optical fiber external diameter is 250 μ m
1, cut two fiber end faces flat with cutter, be pressed in the V-type groove of heat sealing machine fiber clamp, two optical fiber are adjusted to best collimation position, after the setting discharge current is 25mA, discharge time 2s, fiber clamp translational speed 50 μ m/s, open discharge switch, two optical fiber advance with identical speed relative direction and close up and welding behind arc discharge heating and melting optical fiber.
2, the optical fiber after the above-mentioned welding of adjustment makes electrode leave the welding point.
3, set discharge current and be 20mA, discharge time 10s, fiber clamp translational speed 100 μ m/s after, open discharge switch, the optical fiber part is heated fusion when arc discharge, controlling the motor that the sparking electrode stepping moves simultaneously moves with the speed identical with fiber clamp under control of microcomputer, the optical fiber part has formed conical and has been broken in conical tip subsequently and formed end-cone shape optical fiber, and the awl length of cone is 1000 μ m under this condition.
4, make the spheroidal lens as need at above-mentioned fiber end face, can continue heating to the above-mentioned optical fiber conical end that makes with arc discharge method, discharge current be set be 25mA, discharge time 2s, its end face is shrunk to spheroidal automatically because of surface tension effects, the size of spheroidal lenslet diameter is with deciding discharge time, discharge time, long lenslet diameter was big, and vice versa.The radius-of-curvature of spheroidal is 80 μ m under this condition.
When two, the optical fiber external diameter is 1000 μ m
1, cut two fiber end faces flat with cutter, be pressed in the V-type groove of heat sealing machine fiber clamp, two optical fiber are adjusted to best collimation position, after the setting discharge current is 40mA, discharge time 2.5s, fiber clamp translational speed 50 μ m/s, open discharge switch, two optical fiber advance with identical speed relative direction and close up and welding behind arc discharge heating and melting optical fiber.
2, the optical fiber after the above-mentioned welding of adjustment makes electrode leave the welding point.
3, set discharge current and be 28mA, discharge time 27s, fiber clamp translational speed 150 μ m/s after, open discharge switch, the optical fiber part is heated fusion when arc discharge, controlling the motor that the sparking electrode stepping moves simultaneously moves with the speed identical with fiber clamp under control of microcomputer, the optical fiber part has formed conical and has been broken in conical tip subsequently and formed end-cone shape optical fiber, and the awl length of cone is 4500 μ m under this condition.
4, make the spheroidal lens as need at above-mentioned fiber end face, can continue heating to the above-mentioned optical fiber conical end that makes with arc discharge method, discharge current be set be 40mA, discharge time 2s, its end face is shrunk to spheroidal automatically because of surface tension effects, the size of spheroidal lenslet diameter is with deciding discharge time, discharge time, long lenslet diameter was big, and vice versa.The radius-of-curvature of spheroidal is 600 μ m under this condition.
When three, the optical fiber external diameter is 1500 μ m
1, cut two fiber end faces flat with cutter, be pressed in the V-type groove of heat sealing machine fiber clamp, two optical fiber are adjusted to best collimation position, after the setting discharge current is 55mA, discharge time 2.5s, fiber clamp translational speed 50 μ m/s, open discharge switch, two optical fiber advance with identical speed relative direction and close up and welding behind arc discharge heating and melting optical fiber.
2, the optical fiber after the above-mentioned welding of adjustment makes electrode leave the welding point.
3, set discharge current and be 37mA, discharge time 30.5s, fiber clamp translational speed 200 μ m/s after, open discharge switch, the optical fiber part is heated fusion when arc discharge, controlling the motor that the sparking electrode stepping moves simultaneously moves with the speed identical with fiber clamp under control of microcomputer, the optical fiber part has formed conical and has been broken in conical tip subsequently and formed end-cone shape optical fiber, and the awl length of cone is 6100 μ m under this condition.
4, make the spheroidal lens as need at above-mentioned fiber end face, can continue heating to the above-mentioned optical fiber conical end that makes with arc discharge method, discharge current be set be 55mA, discharge time 3s, its end face is shrunk to spheroidal automatically because of surface tension effects, the size of spheroidal lenslet diameter is with deciding discharge time, discharge time, long lenslet diameter was big, and vice versa.The radius-of-curvature of spheroidal is 1000 μ m under this condition.
Claims (2)
1, a kind of large core fiber end face forming method makes fiber end face make taper shape or sphere lens with the method for optical fiber splicer by arc discharge, it is characterized in that concrete steps are:
A, two fiber end faces are cut flat with cutter, be pressed in the V-type groove of fiber clamp on the optical fiber splicer, two optical fiber advance with identical speed relative direction and close up and welding behind arc discharge heating and melting optical fiber;
Optical fiber after b, the above-mentioned welding of adjustment makes electrode leave the welding point;
C, open discharge switch, the optical fiber part is heated fusion when arc discharge, the motor motor that stepping is moved with the control sparking electrode that the stepping of control fiber clamp is moved moves, and the optical fiber part has formed conical and broken in conical tip subsequently and formed end-cone shape optical fiber;
D, when fiber end face is made the spheroidal lens, the above-mentioned optical fiber conical end that makes is continued heating with arc discharge method, its end face is shrunk to spheroidal automatically because of surface tension effects.
2, a kind of large core fiber end face forming method is characterized in that the electrode of the optical fiber splicer that adopts can be along relative motion between optical fiber axial direction and the optical fiber stiff end, and has the device of this relative motion of control corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03127689XA CN1542476A (en) | 2003-08-14 | 2003-08-14 | Optical fiber end face forming method and fiber heat sealer used thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03127689XA CN1542476A (en) | 2003-08-14 | 2003-08-14 | Optical fiber end face forming method and fiber heat sealer used thereof |
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| CN1542476A true CN1542476A (en) | 2004-11-03 |
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| CNA03127689XA Pending CN1542476A (en) | 2003-08-14 | 2003-08-14 | Optical fiber end face forming method and fiber heat sealer used thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089818A1 (en) * | 2012-12-14 | 2014-06-19 | 深圳日海通讯技术股份有限公司 | Optical fiber end face processing method, optical fiber end face and processing apparatus |
| CN104609723A (en) * | 2015-01-16 | 2015-05-13 | 宁波大学 | Preparation method of chalcogenide glass tapered fibers |
| CN105826800A (en) * | 2016-04-21 | 2016-08-03 | 宁波大学 | All-optical fiber broadband flat intermediate-infrared super-continuum spectrum light source |
| CN106908901A (en) * | 2017-04-06 | 2017-06-30 | 深圳市光谷百纳科技有限公司 | One kind transformation optical fiber method |
| WO2020014827A1 (en) * | 2018-07-16 | 2020-01-23 | 罗春晖 | End melting processing method |
| CN113820788A (en) * | 2021-10-05 | 2021-12-21 | 桂林电子科技大学 | Shaping method for linear emergent light field at optical fiber end of flow cytometer |
-
2003
- 2003-08-14 CN CNA03127689XA patent/CN1542476A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089818A1 (en) * | 2012-12-14 | 2014-06-19 | 深圳日海通讯技术股份有限公司 | Optical fiber end face processing method, optical fiber end face and processing apparatus |
| CN104609723A (en) * | 2015-01-16 | 2015-05-13 | 宁波大学 | Preparation method of chalcogenide glass tapered fibers |
| CN104609723B (en) * | 2015-01-16 | 2017-08-08 | 宁波大学 | A kind of preparation method of chalcogenide glass tapered fiber |
| CN105826800A (en) * | 2016-04-21 | 2016-08-03 | 宁波大学 | All-optical fiber broadband flat intermediate-infrared super-continuum spectrum light source |
| CN106908901A (en) * | 2017-04-06 | 2017-06-30 | 深圳市光谷百纳科技有限公司 | One kind transformation optical fiber method |
| WO2020014827A1 (en) * | 2018-07-16 | 2020-01-23 | 罗春晖 | End melting processing method |
| CN113820788A (en) * | 2021-10-05 | 2021-12-21 | 桂林电子科技大学 | Shaping method for linear emergent light field at optical fiber end of flow cytometer |
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