CN101033112A - Panda-shape polarization maintaining optical fiber prepared by lateral symmetrical open groove and method - Google Patents
Panda-shape polarization maintaining optical fiber prepared by lateral symmetrical open groove and method Download PDFInfo
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- CN101033112A CN101033112A CN 200610169807 CN200610169807A CN101033112A CN 101033112 A CN101033112 A CN 101033112A CN 200610169807 CN200610169807 CN 200610169807 CN 200610169807 A CN200610169807 A CN 200610169807A CN 101033112 A CN101033112 A CN 101033112A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
- C03B37/01217—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of polarisation-maintaining optical fibres
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
- C03B2203/31—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres by use of stress-imparting rods, e.g. by insertion
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
This invention puts forward a method for manufacturing panda-type polarization maintaining fibers by lateral symmetric notches including: first of all making absolutely symmetric notches longitudinally at either side of a prefabricated rod core to let the central lines of the two side notches and that of the rod on a same plane and the bottoms of the notches in the same distance from the central line of the rod, then inserting stress rods doped with B into the notches of the two sides of the rod to let the central lines of the stress rod on the same plane with that of the prefabricated rod then putting them in a pure quartz sleeve together to sinter one end and then drawing them to fibers after filling the spacing part with pure quartz capillary rods.
Description
Technical field:
The present invention relates to a kind of making method of special optical fiber, belong to the technical field of panda type polarization-preserving fiber.
Background technology
Polarization maintaining optical fibre is mainly used in high-precision optical fiber gyro and optical fiber laser.What adopt mostly at present is panda type polarization-preserving fiber, i.e. two round stressed zones of core district zygomorphy distribution, and the medullary ray of its stressed zone and core zone centerline are at grade.
The method of making panda type polarization-preserving fiber at present both at home and abroad mainly is the ultrasonic drilling method.This method is on the large preform rod that has prepared, adopts the high-precision ultrasonic tapping and plugging machine in two holes of covering upper edge prefabricated rods medullary ray symmetry processing, then stress rods is embedded in the hole.But, adopt the ultrasonic drilling legal system to make panda type polarization-preserving fiber and also have some shortcomings: the one, can't process the slotted hole of big aspect ratio, and the aperture is vertically irregular; The 2nd, cost an arm and a leg, a ultrasonic drilling machine needs more than 100,000 dollar at least.In addition, the combination of employing completion method is arranged also, soon prefabricated rods and boron-doping stress rods are cut respectively and are worn into certain shape, through grinding and polishing, carry out wire drawing after piling up then in silica tube.Adopt the combination completion method to make panda type polarization-preserving fiber and have very big deficiency: in pure silica tube, be difficult to two stress rods of strict control about core district symmetry, the medullary ray that therefore can't guarantee the medullary ray of two stressed zones and prefabricated rods all the time in one plane, can't guarantee that two stressed zones equate apart from the distance of prefabricated rods medullary ray, thereby can influence guarantor's bias energy of optical fiber greatly.Therefore, pressed for a kind of more cheaply, and can produce the making method of high-performance panda type polarization-preserving fiber.
Summary of the invention
The objective of the invention is to not adopt expensive ultrasonic drilling legal system to make panda type polarization-preserving fiber, at the deficiency in the existing making method, proposed to utilize in length and breadth cutting machine at prefabricated rods zygomorphy ground fluting, and the method that the boron-doping stress rods embeds in two side channels has been made the high-performance panda type polarization-preserving fiber.This method greatly improved the yield rate of optical fiber fabrication and optical fiber guarantor's bias energy, reduced cost.
The side direction symmetrical grooving of utilizing that the present invention proposes makes the method for panda type polarization-preserving fiber, its objective is to be achieved through the following technical solutions:
1. in the both sides of the prefabricated rods that prepared the rod heart, adopt cutting machine strictness in length and breadth vertically to slot symmetrically, make the medullary ray of two grooves and prefabricated rods medullary ray at grade, and two trench bottoms are equated apart from the distance of prefabricated rods medullary ray, the side line of two grooves also equates apart from the distance of prefabricated rods medullary ray.
2. the prefabricated rods after will slotting and boron-doping stress rods are cleaned with deionized water is strict, put into the hydrofluoric acid corrosion again after, rinse well with deionized water, dry up with high purity inert gas at last.
3. will clean back boron-doping stress rods embeds in the groove of prefabricated rods both sides symmetrically, make two boron-doping stress rods medullary rays and prefabricated rods centerline at grade, and two boron-doping stress rods medullary rays are equated apart from the distance of prefabricated rods medullary ray, put into pure quartz socket tube more together through polished finish.
4. fill with pure quartzy capillary rod the gap between the gap between boron-doping stress rods and the groove, prefabricated rods and sleeve pipe.
5. the rod one end sintering after will filling is drawn into optical fiber then.
In the such scheme, prefabricated rods can be common prefabricated rods of mixing germanium, also can be Er-doped fiber prefabricated rods or bismuth gallium aluminium erbium preform, to make er-doped polarization maintaining optical fibre or bismuth gallium aluminium erbium polarization maintaining optical fibre.
The present invention has following advantage:
1. cheap, the cutting machine in length and breadth that uses among the present invention only needs 50,000 yuan, compares the ultrasonic drilling machine, and cost greatly reduces.
2. manufacture craft is ingenious, and the boron-doping stress rods is embedded in the monosymmetric groove of prefabricated rods, can guarantee well that two stressed zones strictly about prefabricated rods medullary ray symmetry, improve guarantor's bias energy of optical fiber effectively.
3. vertically the length of fluting can be very long to prefabricated rods, and can guarantee longitudinal uniformity, can produce the optical fiber that long height is protected the bias energy.
4. the present invention can also be applicable to the making of cross polarization maintaining optical fibre and lateral opening polarization maintaining optical fibre.
Description of drawings
Fig. 1 is the synoptic diagram of prefabricated rods fluting of the present invention.
Fig. 2 is that the present invention is with the synoptic diagram in the boron-doping stress rods embedding prefabricated rods groove.
Fig. 3 fills the sectional view of panda type polarization-preserving fiber prefabricated rods behind the quartz pushrod for the present invention.
Fig. 4 is the three-dimensional structure diagram of panda type polarization-preserving fiber of the present invention.
Fig. 5 is the refractive index profile figure of the panda type er-doped polarization maintaining optical fibre of employing the present invention making.
Fig. 6 is the specific refractory power stereographic map of the panda type er-doped polarization maintaining optical fibre of employing the present invention making.
Drawing reference numeral
1-polarization maintaining optical fibre fuse, 2-polarization maintaining optical fibre covering, 3-boron-doping stressed zone,
The 4-prefabricated rods, 5-preform core district, 6-boron-doping stress rods,
The 7-prefabricated rod cladding, the square groove of 8-prefabricated rods both sides, the pure quartz socket tube of 9-,
The pure quartzy capillary rod of 10-.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Embodiment
Adopt the present invention to make panda type er-doped polarization maintaining optical fibre.
Use the MCVD legal system to make Er-doped fiber prefabricated rods 4, wherein prefabricated rods 4 comprises core district 5 and covering 7, and core district 5 is the high refractive index layer of er-doped, and covering 7 is pure quartz layers.Adopt cutting machine in length and breadth vertically opens the medullary ray of square groove 8, two grooves and prefabricated rods on the core district of prefabricated rods 45 zygomorphy ground medullary ray at grade, two trench bottoms equate apart from the distance of prefabricated rods medullary ray, as shown in Figure 1.Prefabricated rods behind the cross-notching and boron-doping stress rods 6 are cleaned through deionized water is strict, putting into hydrofluoric acid again corrodes, rinse well with deionized water at last, after drying up with high purity inert gas again, boron-doping stress rods 6 is embedded symmetrically in the square groove 8 of prefabricated rods 4 both sides, as shown in Figure 2, put into the pure quartz socket tube 9 of process polished finish more in the lump.With pure quartzy capillary rod 10 fill between stress rods and the groove, gap between prefabricated rods and the sleeve pipe, as shown in Figure 3, behind an end sintering of rod, be drawn into panda type er-doped polarization maintaining optical fibre then, as shown in Figure 4.
The index distribution of the panda type er-doped polarization maintaining optical fibre that employing the present invention makes is shown in Fig. 5,6, and Fig. 5 and Fig. 6 are to use the NR-9200 optical fibre refractivity analyser test of EXFO company to obtain.Fig. 5 is the refractive index profile figure that optical fiber is tested on two mutually orthogonal X and Y direction, no boron-doping stressed zone on the directions X, two boron-doping stressed zones are distributing on fibre core zygomorphy ground on the Y direction, as shown in Figure 5, can find out obviously that there are symmetric two specific refractory power bogging down areas in the panda type er-doped polarization maintaining optical fibre that adopts the present invention to make in the fibre core both sides, be the boron-doping stressed zone, sagging refringence is 1.25%; And on directions X, do not have the specific refractory power bogging down area in the fibre core both sides.Fig. 6 is the Refractive Index Profile o stereographic map, and what sink in the middle of wherein is fuse, the both sides projection be the boron-doping stressed zone.
The high-performance panda type er-doped polarization maintaining optical fibre that adopts the present invention to make, the bat at the 1550nm place reaches 3mm, is higher than the level that er-doped polarization maintaining fiber beat in the world is about 8mm.
Claims (3)
1. method of utilizing the side direction symmetrical grooving to make panda type polarization-preserving fiber is characterized in that:
(1) in the prefabricated rods that prepared rod heart both sides, strictness is vertically slotted symmetrically, and the centerline that makes the medullary ray of two grooves and prefabricated rods and makes two trench bottoms equate apart from the distance of prefabricated rods medullary ray at grade;
(2) prefabricated rods behind the fluting and boron-doping stress rods will be put into hydrofluoric acid and corrode through the cleaning of deionized water strictness again, rinse the back well with deionized water at last and dry up with high purity inert gas;
(3) the boron-doping stress rods is embedded in the groove of prefabricated rods both sides symmetrically, make the medullary ray of the medullary ray of both sides boron-doping stress rods and prefabricated rods in the same plane, and make the medullary ray of both sides boron-doping stress rods equal apart from the distance between center line of prefabricated rods, together put into pure quartz socket tube again, with behind the gap between gap groove, sleeve pipe and the prefabricated rods between pure quartzy capillary rod filling boron-doping stress rods and the groove, at one end be drawn into optical fiber behind the sintering at last.
2. by the described a kind of method of utilizing the side direction symmetrical grooving to make panda type polarization-preserving fiber of claim 1, it is characterized in that: described symmetry vertically fluting is to adopt in length and breadth cutting machine to finish.
3. by the described a kind of method of utilizing the side direction symmetrical grooving to make panda type polarization-preserving fiber of claim 1, it is characterized in that: described boron-doping stress rods can replace with pure quartz socket tube, embed symmetrically in the groove of prefabricated rods both sides, to make lateral opening polarization maintaining optical fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610169807 CN101033112A (en) | 2006-12-29 | 2006-12-29 | Panda-shape polarization maintaining optical fiber prepared by lateral symmetrical open groove and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610169807 CN101033112A (en) | 2006-12-29 | 2006-12-29 | Panda-shape polarization maintaining optical fiber prepared by lateral symmetrical open groove and method |
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| CN101033112A true CN101033112A (en) | 2007-09-12 |
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| CN 200610169807 Pending CN101033112A (en) | 2006-12-29 | 2006-12-29 | Panda-shape polarization maintaining optical fiber prepared by lateral symmetrical open groove and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096144A (en) * | 2010-12-31 | 2011-06-15 | 北京交通大学 | Polarization maintaining double-clad optical fiber having helical structure and manufacturing method thereof |
| CN102120688A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Method for manufacturing optical fibers by utilizing lateral symmetrical slots |
| CN101367608B (en) * | 2008-10-14 | 2011-07-20 | 长飞光纤光缆有限公司 | Method for manufacturing panda type polarization-preserving fiber |
| CN102351415A (en) * | 2011-06-22 | 2012-02-15 | 武汉烽火锐光科技有限公司 | Manufacture method for polarization maintaining fiber and polarization maintaining fiber |
| CN102701584A (en) * | 2012-06-11 | 2012-10-03 | 中国电子科技集团公司第四十六研究所 | Method for processing optical fiber preform |
| CN102730960A (en) * | 2012-06-11 | 2012-10-17 | 烽火通信科技股份有限公司 | Manufacturing method of porous optical fiber preform |
| CN105293892A (en) * | 2015-12-04 | 2016-02-03 | 中国电子科技集团公司第四十六研究所 | Wire drawing method of high-stress active polarization-maintaining fiber prefabricated rod |
| CN106646731A (en) * | 2015-10-28 | 2017-05-10 | 上海亨通光电科技有限公司 | Broadband fiber wave-plate manufacturing method |
| CN111099820A (en) * | 2019-12-30 | 2020-05-05 | 武汉安扬激光技术有限责任公司 | Preparation method of fine stress bar |
| CN114571522A (en) * | 2022-02-24 | 2022-06-03 | 嘉兴市欣海门窗配件有限公司 | Sealing wool top edge slotting device and method |
| CN116065245A (en) * | 2023-01-05 | 2023-05-05 | 华南理工大学 | Polymer fiber with controllable conduction path, preparation device and preparation method thereof |
-
2006
- 2006-12-29 CN CN 200610169807 patent/CN101033112A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367608B (en) * | 2008-10-14 | 2011-07-20 | 长飞光纤光缆有限公司 | Method for manufacturing panda type polarization-preserving fiber |
| CN102120688A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Method for manufacturing optical fibers by utilizing lateral symmetrical slots |
| CN102096144A (en) * | 2010-12-31 | 2011-06-15 | 北京交通大学 | Polarization maintaining double-clad optical fiber having helical structure and manufacturing method thereof |
| CN102351415A (en) * | 2011-06-22 | 2012-02-15 | 武汉烽火锐光科技有限公司 | Manufacture method for polarization maintaining fiber and polarization maintaining fiber |
| CN102701584A (en) * | 2012-06-11 | 2012-10-03 | 中国电子科技集团公司第四十六研究所 | Method for processing optical fiber preform |
| CN102730960A (en) * | 2012-06-11 | 2012-10-17 | 烽火通信科技股份有限公司 | Manufacturing method of porous optical fiber preform |
| CN102730960B (en) * | 2012-06-11 | 2014-12-03 | 烽火通信科技股份有限公司 | Manufacturing method of porous optical fiber preform |
| CN102701584B (en) * | 2012-06-11 | 2015-04-15 | 中国电子科技集团公司第四十六研究所 | Method for processing optical fiber preform |
| CN106646731A (en) * | 2015-10-28 | 2017-05-10 | 上海亨通光电科技有限公司 | Broadband fiber wave-plate manufacturing method |
| CN105293892A (en) * | 2015-12-04 | 2016-02-03 | 中国电子科技集团公司第四十六研究所 | Wire drawing method of high-stress active polarization-maintaining fiber prefabricated rod |
| CN111099820A (en) * | 2019-12-30 | 2020-05-05 | 武汉安扬激光技术有限责任公司 | Preparation method of fine stress bar |
| CN111099820B (en) * | 2019-12-30 | 2022-07-05 | 武汉安扬激光技术股份有限公司 | Preparation method of fine stress bar |
| CN114571522A (en) * | 2022-02-24 | 2022-06-03 | 嘉兴市欣海门窗配件有限公司 | Sealing wool top edge slotting device and method |
| CN114571522B (en) * | 2022-02-24 | 2023-09-19 | 嘉兴市欣海门窗配件有限公司 | Sealing wool top edge grooving device and method |
| CN116065245A (en) * | 2023-01-05 | 2023-05-05 | 华南理工大学 | Polymer fiber with controllable conduction path, preparation device and preparation method thereof |
| CN116065245B (en) * | 2023-01-05 | 2024-04-19 | 华南理工大学 | Polymer fiber with controllable conduction path, preparation device and preparation method thereof |
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Open date: 20070912 |