CN108107504A - A kind of guarantor's circular fiber and preparation method thereof - Google Patents
A kind of guarantor's circular fiber and preparation method thereof Download PDFInfo
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- CN108107504A CN108107504A CN201611055501.5A CN201611055501A CN108107504A CN 108107504 A CN108107504 A CN 108107504A CN 201611055501 A CN201611055501 A CN 201611055501A CN 108107504 A CN108107504 A CN 108107504A
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- 239000000835 fiber Substances 0.000 title claims abstract description 86
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000013307 optical fiber Substances 0.000 claims abstract description 48
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000005297 pyrex Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000005491 wire drawing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 208000025174 PANDAS Diseases 0.000 abstract description 8
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 abstract description 8
- 240000004718 Panda Species 0.000 abstract description 8
- 235000016496 Panda oleosa Nutrition 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 230000010287 polarization Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- 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
-
- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01228—Removal of preform material
-
- 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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/74—Means for moving at least a part of the draw furnace, e.g. by rotation or vertical or horizontal movement
Landscapes
- Engineering & Computer Science (AREA)
- 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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention discloses a kind of guarantor's circular fibers and preparation method thereof, and fiber core cross section is circle, and two Pyrex stressed zones are symmetrically distributed in core both sides, realize stress zone type birefringence；The covering of optical fiber is circular；The coating material of optical fiber can be similar with Conventional communication optical fiber, can also be replaced according to application environment.The axial symmetry that the present invention protects circular fiber is more preferable, solves the problems, such as that traditional bow-tie type guarantor circular fiber core is non-round and stressed zone symmetry is poor, is conducive to the coherence request of optical fiber；Guarantor's circular fiber of the present invention falls within panda type and protects circular fiber, with that can improve fusion efficiency and performance during existing panda type polarization-preserving fiber welding；The present invention protects circular fiber can realize the integration of sensing ring, a quarter slide, ring retard to the demand and sensing ring, a quarter slide, ring retard of optical fiber by an optical fiber, thus greatly reduce the splice loss, splice attenuation of optical fiber, improve system performance.
Description
Technical field
The invention belongs to spin fiber technical fields more particularly to a kind of guarantor's circular fiber and preparation method thereof.
Background technology
Current transformer is that a kind of progress electrical energy measurement widely used in electric system and the important of relay protection set
It is standby, it precision and reliability and electric system safe and reliable and economically runs closely related.However as power industry
Development, the capacity of electrical power transmission system are continuously increased, and voltage class is higher and higher.And traditional electromagnetic current transducer is base
In electromagnetic induction, operation principle determines that technically there is some insoluble difficulties.And avoid electromagnetic induction
Using the optical current mutual inductor of optical principle due to having many advantages, such as that insulation characterisitic is good, fast response time, people are constantly subjected to
Green grass or young crops narrow.Since optical fiber has the advantages that anti-electromagnetic interference capability is strong, the attenuation of good insulation preformance, signal is small, thus in faraday
In current sensor research, generally using optical fiber as transmission medium.Traditional telecommunication optical fiber has bigger phase difference,
And phase difference can add up with the length of optical fiber, and the phase difference of low birefringent fiber is very small, and does not have with the length of optical fiber
Linear relation can be widely used on current transformer.
Low birefringent fiber is mainly used on current transformer, the high speed development of modern industry, to the conveying of power grid and
Detection proposes higher requirement, and the measurement means of traditional high-voltage great-current will be faced with severe tests with optical fiber technology
The optical fiber current sensing system to get up with the development of material science, because having good insulating properties and antijamming capability,
Higher measurement accuracy easily minimizes, without a series of superiority such as potential explosion danger, and is subject to the extensive weight of people
Depending on.The cardinal principle of fibre optic current sensor is the Faraday effect using magneto-optical crystal.According to of=VBl, by farad
The measurement of younger brother's anglec of rotation 0F, can obtain magnetic field intensity caused by electric current, so as to calculate size of current.But tradition neck
Junction type protect circular fiber core there are non-round and stressed zone symmetry it is poor the problem of, be unfavorable for the coherence request of optical fiber；And due to
, it is necessary to protect circular fiber and polarization maintaining optical fibre welding in all-fiber current transformator, existing essentially bow-tie type protects circular fiber and bear
Cat type polarization maintaining optical fibre welding, two kinds of optical fiber structure asymmetry influence the fusion efficiency and performance of optical fiber.
The content of the invention
The present invention provides a kind of guarantor's circular fiber and preparation method thereof, the optical fiber symmetry for the problems of the prior art
During the panda protecting polarized light fiber welding more preferably, and with ring retard used, fusion efficiency and performance are more preferably.
The technical solution adopted by the present invention to solve the technical problems is：A kind of guarantor's circular fiber, the number of fibre core are provided first
It measures as 1, protects circular fiber fiber core cross section as circle, fiber core cross section center position is with protecting circular fiber cross-section center point position
It overlaps, 2 Pyrex stressed zones are symmetrically distributed in the both sides of fibre core in the shape of a spiral, realize stress zone type birefringence, borosilicate glass
The cross section of glass stressed zone is circle, and on same cross section, the center of each Pyrex stressed zone is with protecting circular fiber fibre core
The distance at center is equal, and the cross-sectional diameter of Pyrex stressed zone is 22~26 μm, protects stressed zone refractive index phase in circular fiber
It is -0.010~-0.015 to quartz glass refringence.Guarantor's circular fiber keeps pattern for circularly polarized light, and optical fiber is made to keep circle
Polarize optical transport.The optical mode of guarantor's circular fiber conduction is single mode, and operation wavelength is by the material of optical fiber, design size, refractive index
The factors such as difference determine.The birefringenct property of optical fiber is total to by the length-width ratio of fibre core, stressed zone diameter, stressed zone boron element doping concentration
With decision.
By above-mentioned technical proposal, the center of each Pyrex stressed zone with protect the distance of circular fiber core centre as 16~
18μm。
By above-mentioned technical proposal, the coating material of optical fiber is acrylic resin.
A kind of guarantor's circular fiber preparation method in the present invention is also provided, is comprised the following steps, step 1 prepares plug；Step
Two, plug collapsing post-tensioning, external diametrical extent is 8~15mm after stretching；Step 3, plug matching casing collapsing obtain collapsing stick,
Two circular apertures are made a call in collapsing stick central symmetry direction, circular aperture aperture is 2~5mm；Step 4, stress rods are prepared and drawn
It stretches, 2~5mm of core diameter after stretching, stretches post-etching；Step 5, prefabricated rods combination rotation vacuumize wire drawing, and prefabricated rods combination is taken out true
Empty wire drawing rotates prefabricated rods in drawing process, by adjusting the spiral of drawing speed and rotary speed control optical fiber away from, spiral away from
Scope is 2~5mm.2 stressed zones are symmetrically distributed in the both sides of fibre core in the shape of a spiral, and the cross-sectional diameter of stressed zone is 22~26
μm, stressed zone refractive index is -0.010~-0.015 with respect to quartz glass refringence in guarantor's circular fiber.
By above-mentioned technical proposal, in the step 5, control spiral is away from equal to drawing speed divided by rotary speed, wire drawing speed
Degree scope is 1~2m/s, and rotational velocity range is 200~1000r/min.
The beneficial effect comprise that：First, the axial symmetry that the present invention protects circular fiber is more preferable, solves traditional knot
Type protects the problem of circular fiber core is non-round and stressed zone symmetry is poor, is conducive to the coherence request of optical fiber；Second, due in full light
, it is necessary to protect circular fiber and polarization maintaining optical fibre welding in fiber current mutual inductor, existing bow-tie type protects circular fiber and panda type polarization-preserving fiber
Welding, two kinds of optical fiber structure asymmetry influence the fusion efficiency and performance of optical fiber, and guarantor's circular fiber of the present invention falls within panda
Type protects circular fiber, with that can improve fusion efficiency and performance during existing panda type polarization-preserving fiber welding；3rd, the present invention protects circle light
Fibre can be realized by optical fiber sensing ring, a quarter slide, ring retard to the demand and sensing ring of optical fiber, four/
The integration of one slide, ring retard thus greatly reduces the splice loss, splice attenuation of optical fiber, improves system performance.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the cross-sectional view that the embodiment of the present invention protects circular fiber；
Fig. 2 is the stereogram that the embodiment of the present invention protects circular fiber.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
In the embodiment of the present invention, a kind of guarantor's circular fiber is provided first, and as shown in Figure 1 and Figure 2, the quantity of fibre core is 1, protects circle
Fiber core cross section is circle, and fiber core cross section center position is overlapped with protecting circular fiber cross-section center point position, 2 boron
Silica glass stressed zone is symmetrically distributed in the both sides of fibre core in the shape of a spiral, realizes stress zone type birefringence, Pyrex stressed zone
Cross section is circle, on same cross section, the center of each Pyrex stressed zone and the distance for protecting circular fiber core centre
Equal, the cross-sectional diameter of Pyrex stressed zone is 22~26 μm, and stressed zone refractive index is with respect to quartz glass in guarantor's circular fiber
Refringence is -0.010~-0.015.Guarantor's circular fiber keeps pattern for circularly polarized light, and optical fiber is made to keep circularly polarized light transmission.
The optical mode of guarantor's circular fiber conduction is single mode, and operation wavelength is determined by factors such as the material of optical fiber, design size, refringences
It is fixed.The birefringenct property of optical fiber is codetermined by the length-width ratio of fibre core, stressed zone diameter, stressed zone boron element doping concentration.
Further, the center of each Pyrex stressed zone and the distance for protecting circular fiber core centre are 16~18 μm.
Further, the coating material of optical fiber is acrylic resin.
A kind of guarantor's circular fiber preparation method in the embodiment of the present invention is also provided, is comprised the following steps, step 1 prepares core
Stick；Step 2, plug collapsing post-tensioning, external diametrical extent is 8~15mm after stretching；Step 3, plug matching casing collapsing obtain
Collapsing stick, two circular apertures are made a call in collapsing stick central symmetry direction, and circular aperture aperture is 2~5mm；Step 4, stress rods
It prepares and stretches, 2~5mm of core diameter after stretching stretches post-etching；Step 5, prefabricated rods combination rotation vacuumize wire drawing, prefabricated rods
Combination vacuumizes wire drawing, rotates prefabricated rods in drawing process, by adjusting the spiral of drawing speed and rotary speed control optical fiber
Away from spiral is 2~5mm away from scope.2 stressed zones are symmetrically distributed in the both sides of fibre core in the shape of a spiral, and the cross section of stressed zone is straight
Footpath is 22~26 μm, and stressed zone refractive index is -0.010~-0.015 with respect to quartz glass refringence in guarantor's circular fiber.
Further, in the step 5, control spiral is away from equal to drawing speed divided by rotary speed, drawing speed scope
For 1~2m/s, rotational velocity range is 200~1000r/min (rev/min).
In presently preferred embodiments of the present invention, provide 2 kinds and preferably protect circular fiber production method.
Method one：Comprise the following steps：
The technologies plug such as step 1, Chemical Vapour Deposition (CVD) prepares, and utilizes Modified
Chemical Vapour Deposition (MCVD) or Furnace Chemical Vapour Deposition (FCVD) systems
High Numerical Aperture (NA) plug of standby big core diameter, can be according to the mode field diameter and cut-off wave of core diameter and NA control optical fiber
It is long；
Step 2 is plug collapsing post-tensioning, and outer diameter is stretched to suitable small heater wire drawing diameter；
Step 3 spiles, and two circular apertures are made a call in collapsing stick central symmetry direction, can be according to punching spacing adjustment light
Fine stress birfringence performance and attenuation；
Step 4 is prepared by stress rods, is stretched, corrosion, by adjusting stress rods core diameter and core area doping concentration so as to controlling
Birefringenct property；
Step 5 vacuumizes wire drawing for prefabricated rods combination rotation, and prefabricated rods combination vacuumizes wire drawing, rotated in drawing process
Prefabricated rods, by adjusting the spiral of drawing speed and rotary speed control optical fiber away from spiral is 2-5mm away from scope.
Method two：Comprise the following steps：
The technologies plug such as step 1, Chemical Vapour Deposition (CVD) prepares, and utilizes Modified
Chemical Vapour Deposition (MCVD) or Furnace Chemical Vapour Deposition (FCVD) systems
High Numerical Aperture (NA) plug of standby big core diameter can control the mode field diameter of optical fiber and by ripple according to core diameter and NA
It is long；
Step 2 matches casing collapsing for plug；
Step 3 is prepared for stress rods, and polishing, doping concentration is equal to panda type polarization-preserving fiber stressed zone doping concentration, is had
Body molar concentration is 16% to 24%, and then according to punching aperture polishing stress rods, being controlled according to stress rods core diameter should in optical fiber
Power area diameter, so as to control birefringenct property；
Step 4 vacuumizes stretching for prefabricated rods combination, and outer diameter is stretched to suitable small heater wire drawing outer diameter；
Step 5 rotates wire drawing for small prefabricated rods.
If the following table 1 is present invention guarantor's specific test result of circular fiber：
Table 1
For the present invention for the sensing ring in existing all-fiber current transformator, the fibre core of this optical fiber is circular, two circles
The axial symmetry distribution of shape stressed zone, birefringenct property are equal to stress zone type polarization maintaining optical fibre, can reach 10-2Magnitude passes through height
Birefringence linear polarization keep fiber spinning obtain circular polarization keep optical fiber, cross-talk be affected by temperature it is small, suitable for full optical-fiber current
In sensing ring.This fiber geometries symmetry protects circular fiber better than existing bow-tie type simultaneously, in the panda used with ring retard
During polarization maintaining optical fibre welding, fusion efficiency and performance more preferably, are more suitable for the engineering of all-fiber current transformator.
It should be appreciated that for those of ordinary skills, can be improved or converted according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (5)
1. a kind of guarantor's circular fiber, which is characterized in that the quantity of fibre core is 1, protects circular fiber fiber core cross section as circle, fibre core is transversal
Face center position is overlapped with protecting circular fiber cross-section center point position, and 2 Pyrex stressed zones are symmetrical in the shape of a spiral
In the both sides of fibre core, stress zone type birefringence is realized, the cross section of Pyrex stressed zone is circle, on same cross section,
The center of each Pyrex stressed zone is equal with the distance for protecting circular fiber core centre, and the cross section of Pyrex stressed zone is straight
Footpath is 22~26 μm, and stressed zone refractive index is -0.010~-0.015 with respect to quartz glass refringence in guarantor's circular fiber.
2. guarantor's circular fiber according to claim 1, which is characterized in that the center of each Pyrex stressed zone is with protecting circle light
The distance of fine core centre is 16~18 μm.
3. guarantor's circular fiber preparation method according to claim 1 or 2, which is characterized in that the coating material of optical fiber is propylene
Acid resin.
4. a kind of preparation method as described in claim 1 for protecting circular fiber, which is characterized in that comprise the following steps, step 1,
Prepare plug；Step 2, plug collapsing post-tensioning, external diametrical extent is 8~15mm after stretching；Step 3, plug matching casing melt
Contracting obtains collapsing stick, and two circular apertures are made a call in collapsing stick central symmetry direction, and circular aperture aperture is 2~5mm；Step 4,
Stress rods are prepared and stretched, 2~5mm of core diameter after stretching, stretch post-etching；Step 5, prefabricated rods combination rotation vacuumize wire drawing,
Prefabricated rods combination vacuumizes wire drawing, rotates prefabricated rods in drawing process, by adjusting drawing speed and rotary speed control optical fiber
Spiral away from, spiral be 2~5mm away from scope.
5. it is according to claim 4 guarantor circular fiber preparation method, which is characterized in that in the step 5, control spiral away from
Equal to drawing speed divided by rotary speed, drawing speed scope is 1~2m/s, and rotational velocity range is 200~1000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611055501.5A CN108107504A (en) | 2016-11-25 | 2016-11-25 | A kind of guarantor's circular fiber and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611055501.5A CN108107504A (en) | 2016-11-25 | 2016-11-25 | A kind of guarantor's circular fiber and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405848A (en) * | 2018-10-18 | 2019-03-01 | 武汉长盈通光电技术有限公司 | A kind of bonded structure and adhering method of optical fibre gyro exoskeletal ring and shell |
| CN112147739A (en) * | 2019-06-26 | 2020-12-29 | 上海康阔光智能技术有限公司 | Bending-resistant and torsion-resistant optical fiber for optical fiber gyroscope, and sensing optical fiber ring and optical fiber gyroscope using same |
| CN115308841A (en) * | 2022-08-26 | 2022-11-08 | 上海润京能源科技有限公司 | Cutting method of rotating optical fiber and optical fiber reflector |
| CN115308841B (en) * | 2022-08-26 | 2024-06-04 | 上海润京能源科技有限公司 | Cutting method of rotating optical fiber and optical fiber reflector |
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| CN105005113A (en) * | 2015-08-04 | 2015-10-28 | 武汉虹拓新技术有限责任公司 | Method for realizing polarization-maintaining fiber by using ultrafast laser |
| CN105182468A (en) * | 2015-09-23 | 2015-12-23 | 上海大学 | Multi-lobe stress region circular single polarization optical fiber and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405848A (en) * | 2018-10-18 | 2019-03-01 | 武汉长盈通光电技术有限公司 | A kind of bonded structure and adhering method of optical fibre gyro exoskeletal ring and shell |
| CN112147739A (en) * | 2019-06-26 | 2020-12-29 | 上海康阔光智能技术有限公司 | Bending-resistant and torsion-resistant optical fiber for optical fiber gyroscope, and sensing optical fiber ring and optical fiber gyroscope using same |
| CN115308841A (en) * | 2022-08-26 | 2022-11-08 | 上海润京能源科技有限公司 | Cutting method of rotating optical fiber and optical fiber reflector |
| CN115308841B (en) * | 2022-08-26 | 2024-06-04 | 上海润京能源科技有限公司 | Cutting method of rotating optical fiber and optical fiber reflector |
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