CN103645537A - Device based on polarization maintaining optical fiber end surface fixed axis and re-welding method of polarization maintaining optical fiber end surface fixed axis - Google Patents
Device based on polarization maintaining optical fiber end surface fixed axis and re-welding method of polarization maintaining optical fiber end surface fixed axis Download PDFInfo
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- CN103645537A CN103645537A CN201310617063.7A CN201310617063A CN103645537A CN 103645537 A CN103645537 A CN 103645537A CN 201310617063 A CN201310617063 A CN 201310617063A CN 103645537 A CN103645537 A CN 103645537A
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Abstract
Provided is a device based on a polarization maintaining optical fiber end surface fixed axis. The device comprises a positioning clamping tool, a positioning clamping device, an image pickup device, a first stepping motor, a second stepping motor and a translation stage. A polarization maintaining optical fiber device is arranged above the positioning clamping tool. An optical fiber is used for moving flexibly. One end of the polarization maintaining optical fiber is fixed and tightly clamped by the positioning clamping device which is fixed on the first stepping motor. The end surface of the polarization maintaining optical fiber is arranged in front of the image pickup device which is arranged on the translation stage driven by the second stepping motor. The translation stage and the positioning clamping tool are both fixedly arranged on a seat. The beneficial effects of the invention are that: the method and the welding device disclosed by the invention can act as an auxiliary method in cooperation with application of a single-mode welding machine so that all functions of a polarization maintaining welding machine are completed, wherein the functions comprise: 1 capacity of the single-mode welding machine for welding the polarization maintaining optical fiber is extended; and 2. welding capacity of the polarization maintaining optical fiber and mutual welding capacity of different kinds of optical fibers are enhanced.
Description
Technical field
The present invention relates to a kind of high precision polarization maintaining optical fibre for fields such as Fibre Optical Sensor, optical fiber communication, optical measuring device, medical treatment to axle welding process.
Background technology
Polarization maintaining optical fibre belongs to a kind of of special optical fiber, and it has reduced the coupling that in general single mode fiber, the polarized light of two kinds of orthogonal modess occurs in communication process, has maintained the polarization state of light wave.Because this specific character of polarization maintaining optical fibre, makes its application in optical-fibre communications and sensor-based system increasingly extensive.At coherent fiber communication, interferometric optical fiber sensor, make, especially the application in optical fibre gyro, optical fiber current mutual inductor is extremely important.
The reason producing according to mode birefringence can be divided into geometric shape effect type and stress induction type optical fiber, mainly contain at present several polarization maintaining optical fibres such as panda type, butterfly structure, oval cladding type and oval core type, common three types polarization maintaining optical fibre end face stressed zone shape as shown in Figure 1.On the xsect of polarization maintaining optical fibre, the direction of stress value maximum and minimum direction are commonly referred to the direction of two polarization axles, are called for short stress axis or polarization axle, and the axle of stress value maximum is called slow-axis direction, and the direction of stress value minimum is called quick shaft direction.
In practical implementation, need to carry out permanent connection to two sections of optical fiber, and for polarization maintaining optical fibre except taking general single mode fiber to connect needed fusion process, also need additionally to add to two of polarization maintaining optical fibre polarization axle dead axle processes, after dead axle, need the stress axis that guarantees two sections of optical fiber to carry out welding according to the axial deviation of hope, common deviate is 0 °, 45 °, 90 °.Two sections of optical fiber axially align the performance that difference often has influence on system, therefore accurately guarantee welding after axle to become a gordian technique in application.
Along with the demand of polarization maintaining optical fibre welding occurs, there is the Polarization Maintaining Optical Fiber Fusion Splicer of developing for this application in market, but often price is high, be 5～10 times of single-mode fiber heat sealing machine price not etc.This invention adopts additional frock to come polarization-preserving fiber axis fixing on the basis of single mode heat sealing machine, reduced equipment investment, in addition this invention adopts the form of direct end face dead axle on axis fixation method, avoided because the defect of the side direction dead axle adopting in the inclined to one side heat sealing machine of existing guarantor comprises that polarization maintaining optical fibre not of the same race is difficult for the shortcoming of welding etc.
Inquire about domestic patent, by attachment device or method, do not realize single mode heat sealing machine and realize the patent of protecting inclined to one side welding, for protecting, inclined to one side dead axle mode is domestic only only from the patent of side direction dead axle, and the patent No. is: CN1949006A.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of device based on polarization maintaining optical fibre end face dead axle and welding process again thereof.
For solving the problems of the technologies described above, the present invention realizes as follows:
A device based on polarization maintaining optical fibre end face dead axle, comprises positioning clamping frock, locating and clamping apparatus, camera head, the first stepper motor, the second stepper motor and translation stage; Polarization maintaining optical fibre is arranged on described positioning clamping frock top, optical fiber can be freely movable, one end of polarization maintaining optical fibre is fixed to clamp by described locating and clamping apparatus, described locating and clamping apparatus is fixed on described the first stepper motor, the end face of polarization maintaining optical fibre is arranged on the place ahead of described camera head, described camera head device is on the described translation stage of described the second stepping driven by motor, and described translation stage and described positioning clamping frock are all fixedly installed on present tool.
Based on a polarization maintaining optical fibre end face dead axle welding process again, comprise the following steps:
Step 1, place optical fiber and positioning clamping frock on equipment in advance;
Step 2, by locating and clamping apparatus, make the polarization maintaining optical fibre end face of well cutting be positioned at camera head the place ahead;
The distance of step 3, adjusting camera head and fiber end face, makes the imaging clearly of end face on CCD;
Step 4, computing machine, after the imaging obtaining on CCD, carry out the identification of end face characteristics of image, and the angular deviation of calculated characteristics and reference field;
Step 5, rotation polarization maintaining optical fibre, the misalignment angle by polarization maintaining optical fibre rotation to hope;
Step 6, adopt positioning clamping frock to be fixed dead axle optical fiber, unclamp locating and clamping apparatus;
Step 7, positioning clamping frock is put into single mode heat sealing machine on one side together with optical fiber;
Step 8, repeating step one～step 6, determined, after axle, positioning clamping frock is put into the other one side of single mode heat sealing machine together with optical fiber.
Good effect of the present invention is:
1. realize single mode heat sealing machine welding polarization maintaining optical fibre.Common single mode heat sealing machine is because can not realize polarization-preserving fiber axis fixing, therefore cannot when having dead axle angle demand, polarization maintaining optical fibre carry out welding, adopt the method after dead axle, on single-mode fiber heat sealing machine, to carry out again welding in advance to polarization maintaining optical fibre, expand single mode heat sealing machine function, realized the inclined to one side welding of cheap guarantor.
2. improve the quality of dissimilar polarization maintaining optical fibre welding.Dead axle mode in existing Polarization Maintaining Optical Fiber Fusion Splicer all adopts optical fiber side to the dead axle mode of different qualities, and different types of optic fibre characteristic differs greatly, and image matching algorithm is complicated, and welding effect is unstable.The method adopts fiber end face feature dead axle mode, directly according to end face geometric properties, carries out dead axle, when complexity or the welding of Novel polarization-maintaining optical end face, even can manually participate in dead axle, improves the welding quality of dissimilar polarization maintaining optical fibre.
3. applied range.The direct axis fixation method of end face of mentioning in this patent, can be applied to make integrated optics multifunction device, protect inclined to one side wire jumper etc. and have polarization maintaining optical fibre to need during the device production of dead axle makes.
Accompanying drawing explanation
Fig. 1 is: three kinds of common polarization maintaining optical fibre types
Fig. 2 is: based on polarization maintaining optical fibre end face dead axle device schematic diagram
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 2, a kind of apparatus structure based on polarization maintaining optical fibre end face dead axle is as follows: comprise positioning clamping frock 1, locating and clamping apparatus 2, camera head 3, the first stepper motor 4, the second stepper motor 5 and translation stage 6.Polarization maintaining optical fibre is placed on positioning clamping frock 1 top, optical fiber can be freely movable, one end of polarization maintaining optical fibre is fixed to clamp by locating and clamping apparatus 2, locating and clamping apparatus 2 is fixed on stepper motor 4, the end face of polarization maintaining optical fibre is positioned at the place ahead of camera head 3, on the translation stage 6 that camera head 3 devices drive at an other stepper motor 5, translation stage 6 is all fixed on present tool with positioning clamping frock 1.
Based on a polarization maintaining optical fibre end face dead axle welding process again, comprise the following steps:
S1, place fiber orientation clamping frock 1 on equipment in advance;
S2, by locating and clamping apparatus 2, make the polarization maintaining optical fibre end face of well cutting be positioned at camera head the place ahead;
The distance of S3, adjusting camera head 3 and fiber end face, makes the imaging clearly of end face on CCD;
S4, computing machine, after the imaging obtaining on CCD, carry out the identification of end face characteristics of image, and the angular deviation of calculated characteristics and reference field;
S5, rotation polarization maintaining optical fibre, the misalignment angle by polarization maintaining optical fibre rotation to hope;
S6, adopt 1 pair of positioning clamping frock dead axle optical fiber be fixed, unclamp locating and clamping apparatus 2;
S7, positioning clamping frock 1 is put into single mode heat sealing machine on one side together with optical fiber;
The step of S8, repetition (S1)～(S6), has determined, after axle, positioning clamping frock 1 is put into the other one side of single mode heat sealing machine together with optical fiber.
Beneficial effect of the present invention: in needs welding polarization maintaining optical fibre, must adopt special Polarization Maintaining Optical Fiber Fusion Splicer, this heat sealing machine often price comparison is high in the past; That uses in enormous quantities at present in addition remains single mode heat sealing machine, and along with the progressively expansion of polarization maintaining optical fibre application, single mode heat sealing machine, because of the ability that does not possess the inclined to one side welding of guarantor, will go out of use.And pointed method and the fusion splicing devices of the present invention can coordinate the use of single mode heat sealing machine as auxiliary method, complete all functions of protecting inclined to one side heat sealing machine.
1. expanded the ability that single mode heat sealing machine carries out polarization maintaining optical fibre welding.Adopt after dead axle in advance again by fiber orientation and clamp tool equipment transmission to the mode of carrying out welding on single mode heat sealing machine, two functions of protecting inclined to one side heat sealing machine are split, complete whole dead axle fusion process, expanded the ability of single mode heat sealing machine welding polarization maintaining optical fibre.
2. promoted the ability of Novel polarization-maintaining optical welding and the mutual welding of variety classes optical fiber.Polarization maintaining optical fibre kind is more, and different manufacturers all there are differences in design, and this otherness causes the inclined to one side heat sealing machine of current guarantor quality when welding unstable.And the direct axis fixation method of the end face that this patent proposes can be observed the stressed zone character shape of polarization maintaining optical fibre clearly for dead axle, avoided the erroneous judgement from side-looking, improve dead axle precision.
Realization in order to demonstrate the invention, has described above-mentioned embodiment.But other variations of the present invention and modification, be apparent for those skilled in the art, any modification/variation within the scope of essence disclosed in this invention and cardinal rule or imitation conversion all belong to claim protection domain of the present invention.
Claims (2)
1. the device based on polarization maintaining optical fibre end face dead axle, is characterized in that, comprises positioning clamping frock, locating and clamping apparatus, camera head, the first stepper motor, the second stepper motor and translation stage; Polarization maintaining optical fibre is arranged on described positioning clamping frock top, optical fiber is for freely movable, one end of polarization maintaining optical fibre is fixed to clamp by described locating and clamping apparatus, described locating and clamping apparatus is fixed on described the first stepper motor, the end face of polarization maintaining optical fibre is arranged on the place ahead of described camera head, described camera head device is on the described translation stage of described the second stepping driven by motor, and described translation stage and described positioning clamping frock are all fixedly installed on present tool.
2. based on a polarization maintaining optical fibre end face dead axle welding process again, it is characterized in that, comprise the following steps:
Step 1, place fiber orientation clamping frock on equipment in advance;
Step 2, by locating and clamping apparatus, make the polarization maintaining optical fibre end face of well cutting be positioned at camera head the place ahead;
The distance of step 3, adjusting camera head and fiber end face, makes the imaging clearly of end face on CCD;
Step 4, computing machine, after the imaging obtaining on CCD, carry out the identification of end face characteristics of image, and the angular deviation of calculated characteristics and reference field;
Step 5, rotation polarization maintaining optical fibre, the misalignment angle by polarization maintaining optical fibre rotation to hope;
Step 6, adopt positioning clamping frock to be fixed dead axle optical fiber, unclamp locating and clamping apparatus;
Step 7, positioning clamping frock is put into single mode heat sealing machine on one side together with optical fiber;
Step 8, repeating step one～step 6, determined, after axle, positioning clamping frock is put into the other one side of single mode heat sealing machine together with optical fiber.
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| CN201310617063.7A CN103645537B (en) | 2013-11-28 | 2013-11-28 | Based on device and the welding process again thereof of polarization maintaining optical fibre end face dead axle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567737A (en) * | 2014-12-24 | 2015-04-29 | 浙江大学 | Axis determination method of panda-type polarization-maintaining optical fiber end surface |
| CN104614803A (en) * | 2015-01-27 | 2015-05-13 | 北京航空航天大学 | ARM-based integrated polarization maintaining fiber axis positioning instrument |
| CN105022122A (en) * | 2015-04-29 | 2015-11-04 | 中航光电科技股份有限公司 | Manufacturing device and manufacturing method for contact element component of polarization-maintaining optical fiber connector |
| CN106324750A (en) * | 2015-07-09 | 2017-01-11 | 中国航空工业第六八研究所 | Small-diameter polarization-maintaining fiber and micro-chip fixed-shaft coupling system and method |
| CN106908902A (en) * | 2017-04-14 | 2017-06-30 | 上海康阔光传感技术股份有限公司 | Optical fiber splicer and optical fiber splicing method |
| CN108761633A (en) * | 2018-07-25 | 2018-11-06 | 武汉飞泰智能设备有限公司 | Polarization-preserving fiber axis fixing machine |
| CN109471218A (en) * | 2018-12-14 | 2019-03-15 | 南京吉隆光纤通信股份有限公司 | A kind of polarization maintaining optical fibre is to shaft device |
| CN109765655A (en) * | 2017-11-09 | 2019-05-17 | 傅谦 | Fiber cutter, fused fiber splice external member and polarization maintaining optical fibre welding process |
| CN111290080A (en) * | 2020-02-26 | 2020-06-16 | 广州奥鑫通讯设备有限公司 | Polarization maintaining optical fiber countershaft splicing method |
| CN113176666A (en) * | 2021-04-27 | 2021-07-27 | 哈尔滨工业大学 | Method for manufacturing and optimizing lambda/4 wave plate of all-fiber current transformer |
| WO2023008214A1 (en) * | 2021-07-27 | 2023-02-02 | 住友電気工業株式会社 | Optical fiber alignment method and alignment device, and connection device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567737A (en) * | 2014-12-24 | 2015-04-29 | 浙江大学 | Axis determination method of panda-type polarization-maintaining optical fiber end surface |
| CN104567737B (en) * | 2014-12-24 | 2017-05-10 | 浙江大学 | Axis determination method of panda-type polarization-maintaining optical fiber end surface |
| CN104614803B (en) * | 2015-01-27 | 2018-03-06 | 北京航空航天大学 | Integrated polarization-preserving fiber axis fixing instrument based on ARM |
| CN104614803A (en) * | 2015-01-27 | 2015-05-13 | 北京航空航天大学 | ARM-based integrated polarization maintaining fiber axis positioning instrument |
| CN105022122A (en) * | 2015-04-29 | 2015-11-04 | 中航光电科技股份有限公司 | Manufacturing device and manufacturing method for contact element component of polarization-maintaining optical fiber connector |
| CN106324750A (en) * | 2015-07-09 | 2017-01-11 | 中国航空工业第六八研究所 | Small-diameter polarization-maintaining fiber and micro-chip fixed-shaft coupling system and method |
| CN106324750B (en) * | 2015-07-09 | 2019-11-15 | 中国航空工业第六一八研究所 | A kind of thin footpath polarization maintaining optical fibre and microchip dead axle coupled system and method |
| CN106908902A (en) * | 2017-04-14 | 2017-06-30 | 上海康阔光传感技术股份有限公司 | Optical fiber splicer and optical fiber splicing method |
| CN109765655A (en) * | 2017-11-09 | 2019-05-17 | 傅谦 | Fiber cutter, fused fiber splice external member and polarization maintaining optical fibre welding process |
| CN108761633A (en) * | 2018-07-25 | 2018-11-06 | 武汉飞泰智能设备有限公司 | Polarization-preserving fiber axis fixing machine |
| CN109471218A (en) * | 2018-12-14 | 2019-03-15 | 南京吉隆光纤通信股份有限公司 | A kind of polarization maintaining optical fibre is to shaft device |
| CN111290080A (en) * | 2020-02-26 | 2020-06-16 | 广州奥鑫通讯设备有限公司 | Polarization maintaining optical fiber countershaft splicing method |
| CN111290080B (en) * | 2020-02-26 | 2021-06-18 | 广州奥鑫通讯设备有限公司 | Polarization maintaining optical fiber countershaft splicing method |
| CN113176666A (en) * | 2021-04-27 | 2021-07-27 | 哈尔滨工业大学 | Method for manufacturing and optimizing lambda/4 wave plate of all-fiber current transformer |
| WO2023008214A1 (en) * | 2021-07-27 | 2023-02-02 | 住友電気工業株式会社 | Optical fiber alignment method and alignment device, and connection device |
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