CN103885124B - A kind of processing technology of optical fiber collimator - Google Patents
A kind of processing technology of optical fiber collimator Download PDFInfo
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- CN103885124B CN103885124B CN201410159556.5A CN201410159556A CN103885124B CN 103885124 B CN103885124 B CN 103885124B CN 201410159556 A CN201410159556 A CN 201410159556A CN 103885124 B CN103885124 B CN 103885124B
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- optical fiber
- fiber collimator
- processing technology
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- lens glass
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The present invention discloses a kind of processing technology of optical fiber collimator, made segment core exposed by outer for one end of optical fiber removing, again successively through the through hole be arranged on described heat-proof device and the through hole be arranged on described lower die, and exceed the certain height of described lower die, recycling molding die is heated to the liquefaction of described lens glass and pressurizes, cools obtained described optical fiber collimator, processing technology of the present invention is simple to operate, it is convenient to control, coupling efficiency can up to more than 95%, and process time is short, yield rate is high, can realize the batch production of optical fiber collimator.
Description
Technical field
The present invention relates to technical field of optical fiber, particularly relate to a kind of processing technology of optical fiber collimator.
Background technology
Fiber coupling technique is the gordian technique affecting fibre system, optical fiber lens is then the critical component of coupling fiber, being coupled of luminescence chip and optical fiber is in fact the matching problem of mould field, the optically-coupled that luminescence chip sends enters the more of optical fiber, optical fiber communication distance is far away, and repeater span is also far away; And the Basic Ways improving mould field coupling adds optical lens to improve the efficiency of optically-coupled in coupled system, the method of current solution is at the direct lens working in the end of optical fiber, especially make optical fiber collimator, be connected optical fiber with lens, complete the transmission of light in optical fiber.
At present, the job operation drawback of optical fiber collimator is a lot, and not only operation is difficult to control, and yield rate is lower, and coupling efficiency is not high, can only reach about 60%; Along with the development of optical fiber technology, requirement for coupling efficiency also improves greatly, the required coupling efficiency in general high-end field all more than 75%, therefore, traditional job operation has been difficult to the requirement adapting to the development of modern optical fiber technology, needs a kind of new processing technology to satisfy the demands.
Summary of the invention
For solving problem existing in above-mentioned prior art, the invention provides a kind of processing technology of optical fiber collimator.
The present invention adopts following technical scheme to realize: a kind of processing technology of optical fiber collimator, comprises the following steps:
(1) one piece of lens glass is chosen as mold pressing nitre material, and put into molding die, described molding die comprises upper cores, lower die, the concentric orienting sleeve coordinated with upper cores and lower die, fixed high orienting sleeve and heat-proof device, the corresponding through hole being provided with array on described heat-proof device and lower die, and the diameter of described through hole is greater than the diameter of optical fiber; Described lens glass between described upper cores and lower die, apart from the height of described lower die L1;
(2) made segment core exposed by outer for one end of optical fiber removing, more successively through the through hole be arranged on described heat-proof device and the through hole be arranged on described lower die, and exceed the height of described lower die L2, and L2 < L1;
(3) heating described molding die makes described lens glass be warming up to the liquefaction of described lens glass, and flow on described lower die and merge with described fibre core, be cooled to the yield point temperature t1 of glass again, utilize described molding die to apply pressure P 1 makes described upper cores extrude the described lens glass formation free form surface part of liquefaction simultaneously, keeps m1 minute; Reduce pressure again to P2, be cooled to the transition point t2 of glass, keep m2 minute; Raised pressure is to P3 again, keeps m3 minute; Reduce pressure again to P4, and cool described lens glass m4 minute fast;
(4) when temperature is reduced to t3; the product obtained is taken out from described molding die; in described free form surface part, plate one deck reflectance coating again, around the intersection of described optical fiber and described lens glass, scribble one deck optics protecting glue, namely obtain optical fiber collimator.
Preferably, described processing technology comprises the step of annealing to the product obtained in step (4) further.
Preferably, the described molding die of heating is filled with inert gas while making described lens glass be warming up to the liquefaction of described lens glass and prevents described molding die to be oxidized in step (3).
Preferably, inert gas accelerating cooling is filled with while also cooling described lens glass m4 minute fast in step (3).
Preferably, m1 >=2, m2 >=2, m3 >=2, m4 >=2.
Preferably, P1 > P3 > P4 > P2.
Preferably, t3 < 300 DEG C.
Compared with prior art, the present invention has following beneficial effect: the processing technology of a kind of optical fiber collimator of the present invention is simple to operate, and it is convenient to control, coupling efficiency can up to more than 95%, and process time is short, yield rate is high, can realize the batch production of optical fiber collimator.
Accompanying drawing explanation
Fig. 1 is the mold pressing schematic diagram of the processing technology of the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Wherein: 1, lens glass, 2, optical fiber, 21, fibre core, 3, upper cores, 4, lower die, 41, through hole, 5, with one heart orienting sleeve, 6, fixed high orienting sleeve, 7, heat-proof device.
Embodiment
Be described in further detail below in conjunction with the processing technology of specific embodiment to a kind of optical fiber collimator of the present invention.
Shown in Fig. 1 and Fig. 2, the present invention proposes a kind of processing technology of optical fiber collimator, comprises the following steps:
(1) one piece of lens glass 1 is chosen as mold pressing nitre material, and put into molding die, described molding die comprises upper cores 3, lower die 4, the concentric orienting sleeve 5 coordinated with upper cores 3 and lower die 4, fixed high orienting sleeve 6 and heat-proof device 7, the corresponding through hole 41 being provided with array on described heat-proof device 7 and lower die 4, and the diameter of described through hole 41 is greater than the diameter of optical fiber 2; Described lens glass 1 between described upper cores 3 and lower die 4, apart from the height of described lower die 4L1;
(2) made segment core 21 exposed by outer for one end of optical fiber 2 removing, again successively through the through hole 41 be arranged on described heat-proof device 7 and the through hole 41 be arranged on described lower die 4, and exceed the height of described lower die 4L2, and L2 < L1;
(3) heat described molding die to make described lens glass 1 be warming up to described lens glass 1 to liquefy, and flow on described lower die 4 and merge with described fibre core 21, be filled with nitrogen prevents described molding die to be oxidized simultaneously, be cooled to the yield point temperature t1 of glass again, the described lens glass 1 simultaneously utilizing described molding die applying pressure P 1 to make described upper cores 3 extrude liquefaction forms free form surface part, keeps 2 ~ 4 minutes; Reduce pressure again to P2, be cooled to the transition point t2 of glass, keep 2 ~ 4 minutes; Raised pressure is slightly less than P1 to P3, P3 again, to eliminate the distortion produced due to the contraction of material, keeps 2 ~ 4 minutes; Reduce pressure again to P4, P4 slightly larger than P2, and be filled with nitrogen and cool described lens glass 4 ~ 5 minutes fast;
(4) when temperature is reduced to below 300 DEG C; the product obtained is taken out from described molding die; carry out annealing in process; to improve the homogeneity of refractive index and to eliminate internal stress; one deck reflectance coating is plated again in described free form surface part; around the intersection of described optical fiber 2 and described lens glass 1, scribble one deck optics protecting glue, namely obtain optical fiber collimator.
Optical fiber collimator can overallly use, and also can cut into single optical fiber collimator and use, can adapt to various different user demand.
The foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (7)
1. a processing technology for optical fiber collimator, is characterized in that, comprises the following steps:
(1) one piece of lens glass is chosen as mold pressing nitre material, and put into molding die, described molding die comprises upper cores, lower die, the concentric orienting sleeve coordinated with upper cores and lower die, fixed high orienting sleeve and heat-proof device, the corresponding through hole being provided with array on described heat-proof device and lower die, and the diameter of described through hole is greater than the diameter of optical fiber; Described lens glass between described upper cores and lower die, apart from the height of described lower die L1;
(2) made segment core exposed by outer for one end of optical fiber removing, more successively through the through hole be arranged on described heat-proof device and the through hole be arranged on described lower die, and exceed the height of described lower die L2, and L2 < L1;
(3) heating described molding die makes described lens glass be warming up to the liquefaction of described lens glass, and flow on described lower die and merge with described fibre core, be cooled to the yield point temperature t1 of glass again, utilize described molding die to apply pressure P 1 makes described upper cores extrude the described lens glass formation free form surface part of liquefaction simultaneously, keeps m1 minute; Reduce pressure again to P2, be cooled to the transition point t2 of glass, keep m2 minute; Raised pressure is to P3 again, keeps m3 minute; Reduce pressure again to P4, and cool described lens glass m4 minute fast;
(4) when temperature is reduced to t3; the product obtained is taken out from described molding die; in described free form surface part, plate one deck reflectance coating again, around the intersection of described optical fiber and described lens glass, scribble one deck optics protecting glue, namely obtain optical fiber collimator.
2. the processing technology of optical fiber collimator according to claim 1, is characterized in that, comprises the step of annealing to the product obtained in step (4) further.
3. the processing technology of optical fiber collimator according to claim 1, it is characterized in that, the described molding die of the middle heating of step (3) is filled with inert gas while making described lens glass be warming up to the liquefaction of described lens glass and prevents described molding die to be oxidized.
4. the processing technology of optical fiber collimator according to claim 1, is characterized in that, is filled with inert gas accelerating cooling while also cooling described lens glass m4 minute fast in step (3).
5., according to the processing technology of the arbitrary described optical fiber collimator of Claims 1-4, it is characterized in that, m1 >=2, m2 >=2, m3 >=2, m4 >=2.
6., according to the processing technology of the arbitrary described optical fiber collimator of Claims 1-4, it is characterized in that, P1 > P3 > P4 > P2.
7., according to the processing technology of the arbitrary described optical fiber collimator of Claims 1-4, it is characterized in that, t3 < 300 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410159556.5A CN103885124B (en) | 2014-04-21 | 2014-04-21 | A kind of processing technology of optical fiber collimator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159556.5A CN103885124B (en) | 2014-04-21 | 2014-04-21 | A kind of processing technology of optical fiber collimator |
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| CN103885124A CN103885124A (en) | 2014-06-25 |
| CN103885124B true CN103885124B (en) | 2016-02-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107065214B (en) * | 2017-02-28 | 2019-04-12 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of production method of optical fibre collimator array |
| CN108689590A (en) * | 2018-06-26 | 2018-10-23 | 中国建筑材料科学研究总院有限公司 | The method of chalcogenide glass precision moulded formation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409144A (en) * | 2001-09-27 | 2003-04-09 | 松下电器产业株式会社 | Stick shape non-spherical lens and its producing method |
| CN1533995A (en) * | 2002-06-26 | 2004-10-06 | Hoya株式会社 | Method for mfg. glass forming body |
| JP2005330166A (en) * | 2004-05-21 | 2005-12-02 | Asahi Glass Co Ltd | Optical glass element press forming mold and optical glass element press forming method |
| CN101439922A (en) * | 2008-12-16 | 2009-05-27 | 王海军 | Mould for glass lens moulding and glass lens moulding method |
| CN203259686U (en) * | 2013-05-23 | 2013-10-30 | 深圳市天阳谷科技发展有限公司 | Optical fiber collimator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6625351B2 (en) * | 2000-02-17 | 2003-09-23 | Microfab Technologies, Inc. | Ink-jet printing of collimating microlenses onto optical fibers |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409144A (en) * | 2001-09-27 | 2003-04-09 | 松下电器产业株式会社 | Stick shape non-spherical lens and its producing method |
| CN1533995A (en) * | 2002-06-26 | 2004-10-06 | Hoya株式会社 | Method for mfg. glass forming body |
| JP2005330166A (en) * | 2004-05-21 | 2005-12-02 | Asahi Glass Co Ltd | Optical glass element press forming mold and optical glass element press forming method |
| CN101439922A (en) * | 2008-12-16 | 2009-05-27 | 王海军 | Mould for glass lens moulding and glass lens moulding method |
| CN203259686U (en) * | 2013-05-23 | 2013-10-30 | 深圳市天阳谷科技发展有限公司 | Optical fiber collimator |
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