CN102681086A - Fiber bragg grating producing device capable of controlling wavelengths - Google Patents
Fiber bragg grating producing device capable of controlling wavelengths Download PDFInfo
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- CN102681086A CN102681086A CN2012101322662A CN201210132266A CN102681086A CN 102681086 A CN102681086 A CN 102681086A CN 2012101322662 A CN2012101322662 A CN 2012101322662A CN 201210132266 A CN201210132266 A CN 201210132266A CN 102681086 A CN102681086 A CN 102681086A
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- 239000000835 fiber Substances 0.000 title claims abstract description 71
- 239000013307 optical fiber Substances 0.000 claims abstract description 45
- 230000003028 elevating effect Effects 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000014616 translation Effects 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
Disclosed is a fiber bragg grating producing device capable of controlling wavelengths. The device is characterized by comprising horizontal displacement platforms and lifting platforms which are arranged at intervals, wherein S-shaped tension sensors and tensometers are arranged on the horizontal displacement platforms, the tensometers and the S-shaped tension sensors are connected electrically, one ends of the S-shaped tension sensors are connected fixedly with the horizontal displacement platforms, other portions of the S-shaped tension sensors are suspended above the horizontal displacement platforms, first optical fiber clamping devices are fixed at the other ends of the S-shaped tension sensors, and second optical fiber clamping devices are arranged on the lifting platforms.
Description
Technical field
The invention belongs to the fiber grating manufacture technology field, be specifically related to a kind of can be in fiber grating manufacturing process, through measuring and regulate the pulling force that optical fiber is born under the state of being straightened, thereby accurately control the fiber grating producing device of grating wavelength.
Background technology
Fiber grating has the function of optical filter and catoptron, all is indispensable important devices in optical fiber telecommunications system and optical fiber sensing system.Since fiber grating came out, people had proposed multiple fiber grating method for making, and like standing wave interferometric method, pointwise exposure method, holographic exposure method and phase mask plate method etc., the fiber grating of inscribing various wavelength and spectral shape becomes a reality.In the manufacturing process of fiber grating, often need elder generation that light-sensitive optical fibre is stretching with stationary installation, inscribe by the Ultra-Violet Laser exposure again.When optical fiber is stretching fixedly the time, inevitably can apply certain pulling force, because the sensitivity characteristic of fiber optic materials counter stress; After end exposure discharges the pulling force on the optical fiber; Grating wavelength can drift about to the short wavelength, and the pulling force of fixed fiber is big more, and the grating wavelength drift value is big more.Therefore, when the batch making fiber grating, the consistance of the pulling force of fixed fiber can influence the consistance of grating wavelength.In present production technology, need through the manually-operated fixed fiber, but the pulling force only by virtue of experience can't guarantee at every turn to place optical fiber the time is identical, this causes controlling the consistent wavelength with criticizing grating accurately, need measure and regulate pulling force.In addition; The use of phase mask plate makes the making in enormous quantities of fiber grating become possibility; But every phase mask plate has the fixing cycle, can only make the fiber grating of respective cycle, and in fact can utilize the influence of pulling force to wavelength; Making has the grating of different wave length, but this need measure and regulate equally the pulling force of fixed fiber accurately.Conventional fiber grating producing device comprises that mainly the phase mask plate of ultraviolet light, adjustable positions and the optical fiber clamping and fixing device of one group of adjustable positions constitute.
Summary of the invention
The objective of the invention is to overcome the weak point in the present fiber grating manufacture craft; Provide a kind of and can pass through the accurately pulling force size of control optical fiber; The consistance of the optic fiber grating wavelength that both can guarantee to make can realize that again single phase mask plate makes the producing device of multi-wavelength's fiber grating.
A kind of fiber grating producing device of may command wavelength; It is characterized in that it comprises horizontal shift platform and the lifting table of fixed interval on optical table; The tautness meter that the horizontal shift platform is provided with S shape pulling force sensor and is electrically connected with it; S shape pulling force sensor one end is fixedly connected through screw with the horizontal shift platform, and remainder does not contact with the horizontal shift platform, is fixed with first fibre holder at the S shape pulling force sensor other end; Lifting table is provided with second fibre holder adaptive with first fibre holder.The phase mask plate is arranged between horizontal shift platform and the lifting table through the multidimensional adjustable base.
The concrete characteristics of this programme also have, and said fibre holder is the magnetic clamper, and it has the V-type groove of placing optical fiber, and through the adhesive generation pressure grip optical fiber of magnet, it is to the holding force of the optical fiber maximum stretching resistance greater than bare fibre, at least greater than 5 newton;
Said S shape pulling force sensor has the structure of serpentine; Employing is from heavy and light, aluminum alloy material that hardness is high; Resistance bridge is posted as strain sensor in the center, and two ends can connect fixing horizontal displacement platform and fibre holder respectively, when its two ends receive reverse pulling force; Resistance bridge receives stress can produce corresponding electric signal, and demodulator circuit is connected on the resistance bridge tautness meter as pulling force sensor.
Said horizontal shift platform comprises first base, be arranged on first base and can be along the mobile seat of the first base translation, at first base with move first adjusting screw(rod) and first back-moving spring that is provided with horizontal arrangement between the seat, and first adjusting screw(rod) and first back-moving spring are used for controlling and move the position of seat with respect to first base.
Upright guide rail and elevating bracket, elevating bracket that said lifting table comprises second base, be arranged on second base slide up and down along upright guide rail; Between the elevating bracket and second base, be provided with second adjusting screw(rod) and second back-moving spring of vertical layout, second adjusting screw(rod) and second back-moving spring are used for controlling the position of elevating bracket.
The phase mask plate is arranged between two fibre holders, is fixed on the sextuple adjustable base, and the mask regions height is consistent with ultraviolet light and optical fiber; Said phase mask plate is the even phase place mask plate with some cycles, and ultraviolet light is made the fiber grating of respective cycle through behind the phase mask plate light-sensitive optical fibre being made public.
When making grating, with two fibre holders that optical fiber is stretching fixing earlier, the suffered pulling force of optical fiber can be delivered to by the fibre holder of an end on the resistance bridge strain sensor of S shape pulling force sensor, and shows the pulling force size through the tautness meter demodulation.Through regulating the micrometer head precession or the back-out of one dimension displacement platform, can make synchronous the diminishing or becomes big of pulling force on optical fiber and the pulling force sensor, produce the big or small effect of adjusting pulling force.
The invention has the beneficial effects as follows; When making fiber grating; Optical fiber is stretching fixing by two fibre holders; The direction that lifting table is used for regulating fiber axis is consistent with the dynamometry direction of S shape pulling force sensor, and the horizontal shift platform is used for regulating the pulling force size on the optical fiber, and ultraviolet light is through inscribing fiber grating to exposed optical fiber behind the phase mask plate.When the batch making fiber grating; Earlier the pulling force on the optical fiber is adjusted to identical size before each exposure; The consistent wavelength property of making fiber grating can be improved, and, the fiber grating of different wave length can be produced if before exposure, apply different pulling force; Increase the wavelength coverage of phase mask plate, improve the service efficiency of equipment.
Description of drawings
Fig. 1 is the structural representation of the fiber grating producing device of may command wavelength; Fig. 2 is the vertical view of Fig. 1; Fig. 3 is that the present invention is improving the conforming beneficial effect figure of batch making grating wavelength; Fig. 4 is that the present invention is using single the firm and hard beneficial effect of at present making the different wave length grating of phase mask.
Among the figure: 3-S shape pulling force sensor; The 5-tautness meter; 6-phase mask plate; The sextuple base of regulating of 7-; 8-optical fiber; The 9-ultraviolet light; 11-second fibre holder; 12-first fibre holder; The 21-elevating bracket; 22-second adjusting screw(rod); 23-second base; 24-second back-moving spring; The 31-resistance bridge; 41-moves seat; 42-first adjusting screw(rod); 43-first base; 44-first back-moving spring.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described, the object of the invention and effect will be more obvious.
As illustrated in fig. 1 and 2; A kind of fiber grating producing device of may command wavelength; It comprises horizontal shift platform and the lifting table that is provided with at interval, the tautness meter 5 that the horizontal shift platform is provided with S shape pulling force sensor 3 and is electrically connected with it, and S shape pulling force sensor 3 an only end is fixedly connected through screw with the horizontal shift platform; Remainder is suspended at horizontal shift platform top, is fixed with first fibre holder 12 at S shape pulling force sensor 3 other ends; Lifting table is provided with second fibre holder 11 adaptive with first fibre holder 12.Said fibre holder is the magnetic clamper, and it has the V-type groove of placing optical fiber, and the adhesive through magnet produces the pressure grip optical fiber, and it is to the holding force of the optical fiber maximum stretching resistance greater than bare fibre, at least greater than 5 newton;
Said S shape pulling force sensor 3 has the structure of serpentine; Employing is from heavy and light, aluminum alloy material that hardness is high; Resistance bridge 31 is posted as strain sensor in the center, and two ends can connect the fixing horizontal displacement platform and first fibre holder 12 respectively, when its two ends receive reverse pulling force; Resistance bridge receives stress can produce corresponding electric signal, and demodulator circuit is connected on the resistance bridge 31 tautness meter 5 as S shape pulling force sensor 3.Said horizontal shift platform comprises first base 43, be arranged on first base 43 and can be along the mobile seat 41 of first base, 43 translations, at first base 43 with move first adjusting screw(rod) 42 that is provided with horizontal arrangement between the seat 41 and first back-moving spring, 44, the first adjusting screw(rod)s 42 and first back-moving spring 44 and be used for controlling and move 41 position with respect to first base 43.
Said lifting table comprises second base 23, be arranged at upright guide rail and elevating bracket 21 on second base 23, elevating bracket 21 slides up and down along upright guide rail; Between the elevating bracket 21 and second base 23, be provided with the position that vertically arranged second adjusting screw(rod) 22 and second back-moving spring, 24, the second adjusting screw(rod)s 22 and second back-moving spring 24 are used for controlling elevating bracket 21.
When making fiber grating, optical fiber 8 is stretching and fixing by second fibre holder 11 and first fibre holder 12, and the pulling force that receives on the optical fiber 8 can pass to S shape pulling force sensor 3 through first fibre holder 12.
S shape pulling force sensor 3 can produce corresponding little deformation; And resistance bridge 31 can be sensed strain and produce change in electric; Tautness meter 5 can demodulate the variation of electric signal and show pulling force size suffered on the S shape pulling force sensor 3, the pulling force that this pulling force is just born on the optical fiber.
Through specific embodiment beneficial effect of the present invention is described further below.
Used the cycle as the phase mask plate of 1064nm and the optical fiber of hydrogen-carrying photosensitivity-enhancing, according to grating wavelength formula: λ in an embodiment
B=2n
EffΛ, in the formula, λ
BBe grating bragg wavelength, n
EffBe the effective refractive index behind the exposed optical fiber, Λ is the grating cycle.Behind the end exposure; Not with optical fiber when clamper unclamps; The grating cycle
is similar to the half the of phase mask plate cycle, and grating wavelength is only relevant with the effective refractive index of optical fiber.But because optical fiber received pulling force fixedly the time, when with optical fiber when clamper takes off, pulling force release causes the actual cycle of grating to diminish, so grating wavelength can drift about to the short wavelength.Pulling force is big more, and then wavelength shift is big more.
Utilize the fiber grating producing device of may command wavelength of the present invention; Earlier that optical fiber is stretching fixing through second fibre holder 11 and first fibre holder 12; Again through regulating 22 precessions of second adjusting screw(rod) or the back-out of lifting table; Regulate the height of elevating bracket 21; Thereby regulate fiber axis to S shape pulling force sensor 3 receive force direction coaxial, make the pulling force on the optical fiber 8 consistent, even the value of thrust of demonstration equals the optical fiber 8 actual pulling force that receive on the tautness meter 5 with the dynamometry direction of S shape pulling force sensor 3.Through regulating 42 precessions of first adjusting screw(rod) or the back-out of horizontal shift platform, scalable moves seat 41 move left and right, and this makes optical fiber 8 and pulling force on the S shape pulling force sensor 3 diminish synchronously or becomes big.When fiber grating is inscribed in each exposure, respectively pulling force is adjusted to 50g and 100g weight, adopt identical exposure to make public, survey record grating wavelength behind the release pulling force, the result who repeats test of many times is as shown in Figure 4.Can see that adopt this error of installing the optic fiber grating wavelength of making less than 0.02nm, the grating wavelength consistance that this presentation of results is made is good.
And if when fiber grating is inscribed in exposure, setting the optical fiber pulling force through this device adjusting is different weight, and the result who under identical conditions of exposure and phase mask plate, carries out test of many times is as shown in Figure 5.Can find out; The grating wavelength of made and optical fiber pulling force are linear; Through accurate adjusting optical fiber pulling force; Utilize single phase mask plate can realize making the fiber grating greater than in the 5nm wavelength coverage, this has improved the service efficiency of phase mask plate greatly, can practice thrift the cost of customization different cycles phase mask plate.
Claims (5)
1. the fiber grating producing device of a may command wavelength; It is characterized in that it comprises horizontal shift platform and the lifting table that is provided with at interval; The tautness meter that the horizontal shift platform is provided with S shape pulling force sensor and is electrically connected with it; S shape pulling force sensor one end is fixedly connected through screw with the horizontal shift platform, and remainder is suspended at horizontal shift platform top, is fixed with first fibre holder at the S shape pulling force sensor other end; Lifting table is provided with second fibre holder.
2. the fiber grating producing device of may command wavelength according to claim 1 is characterized in that said fibre holder is the magnetic clamper that has the V-type groove, its to the holding force of optical fiber at least greater than 5 newton.
3. the fiber grating producing device of may command wavelength according to claim 1; It is characterized in that said S shape pulling force sensor adopts from heavy and light, aluminum alloy material that hardness is high; Resistance bridge is posted as strain sensor in the center, and demodulator circuit is connected on the resistance bridge tautness meter as pulling force sensor.
4. the fiber grating producing device of may command wavelength according to claim 1; It is characterized in that said horizontal shift platform comprises first base, is arranged on first base and can be along the mobile seat of the first base translation, at first base with move first adjusting screw(rod) and first back-moving spring that is provided with horizontal arrangement between the seat; First adjusting screw(rod) and first back-moving spring are used for controlling and move the position of seat with respect to first base, thereby are used for regulating optical fiber and the suffered pulling force of S shape pulling force sensor.
5. the fiber grating producing device of may command wavelength according to claim 1; It is characterized in that said lifting table comprises second base, the upright guide rail and elevating bracket, the elevating bracket that are arranged on second base slide up and down along upright guide rail; Between the elevating bracket and second base, be provided with second adjusting screw(rod) and second back-moving spring of vertical layout, second adjusting screw(rod) and second back-moving spring are used for controlling the position of elevating bracket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101322662A CN102681086B (en) | 2012-05-03 | 2012-05-03 | Fiber bragg grating producing device capable of controlling wavelengths |
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| CN2012101322662A CN102681086B (en) | 2012-05-03 | 2012-05-03 | Fiber bragg grating producing device capable of controlling wavelengths |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105138A (en) * | 2013-01-08 | 2013-05-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fiber bragg grating strain sensitivity calibration device and method |
| CN106443873A (en) * | 2016-11-03 | 2017-02-22 | 北京信息科技大学 | Apparatus of precisely controlling pretightening force in FBG etching |
| CN107121749A (en) * | 2017-06-08 | 2017-09-01 | 武汉光谷航天三江激光产业技术研究院有限公司 | A kind of special fixture group of fiber grating |
| CN108445581A (en) * | 2018-01-29 | 2018-08-24 | 江苏深光通信科技有限公司 | Generate the method and its production method of wide spectrum low noise antiradar reflectivity fiber grating |
| CN110411365A (en) * | 2019-08-02 | 2019-11-05 | 蚌埠学院 | A kind of fiber grating measuring mechanical property instrument with male-female disk clamp |
| CN110673258A (en) * | 2019-09-29 | 2020-01-10 | 北京工业大学 | System for writing various fiber gratings by ultraviolet laser mask plate method |
| CN110927888A (en) * | 2019-12-11 | 2020-03-27 | 华中科技大学 | Adjustable clamp for optical fiber |
| CN111999796A (en) * | 2020-08-17 | 2020-11-27 | 南昌大学 | Method for rapidly manufacturing high-reflectivity chalcogenide glass fiber Bragg grating |
| CN116697917A (en) * | 2023-04-28 | 2023-09-05 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
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| CN1448736A (en) * | 2003-04-24 | 2003-10-15 | 大连理工大学 | A method for making long period optical fibre grating |
| CN1467518A (en) * | 2003-01-10 | 2004-01-14 | 西安石油学院 | Method for making fibre-optical grating for sensing detection |
| CN102116896A (en) * | 2011-03-14 | 2011-07-06 | 上海大学 | Device and method for manufacturing stress refraction type long period fiber gating |
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2012
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Patent Citations (3)
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| CN1467518A (en) * | 2003-01-10 | 2004-01-14 | 西安石油学院 | Method for making fibre-optical grating for sensing detection |
| CN1448736A (en) * | 2003-04-24 | 2003-10-15 | 大连理工大学 | A method for making long period optical fibre grating |
| CN102116896A (en) * | 2011-03-14 | 2011-07-06 | 上海大学 | Device and method for manufacturing stress refraction type long period fiber gating |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105138A (en) * | 2013-01-08 | 2013-05-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fiber bragg grating strain sensitivity calibration device and method |
| CN106443873A (en) * | 2016-11-03 | 2017-02-22 | 北京信息科技大学 | Apparatus of precisely controlling pretightening force in FBG etching |
| CN106443873B (en) * | 2016-11-03 | 2019-03-19 | 北京信息科技大学 | A kind of accurate device for controlling pretightning force in FBG inscription |
| CN107121749A (en) * | 2017-06-08 | 2017-09-01 | 武汉光谷航天三江激光产业技术研究院有限公司 | A kind of special fixture group of fiber grating |
| CN108445581A (en) * | 2018-01-29 | 2018-08-24 | 江苏深光通信科技有限公司 | Generate the method and its production method of wide spectrum low noise antiradar reflectivity fiber grating |
| CN110411365A (en) * | 2019-08-02 | 2019-11-05 | 蚌埠学院 | A kind of fiber grating measuring mechanical property instrument with male-female disk clamp |
| CN110411365B (en) * | 2019-08-02 | 2021-08-31 | 蚌埠学院 | Fiber grating mechanical property tester with convex-concave matched disc clamp |
| CN110673258A (en) * | 2019-09-29 | 2020-01-10 | 北京工业大学 | System for writing various fiber gratings by ultraviolet laser mask plate method |
| CN110927888A (en) * | 2019-12-11 | 2020-03-27 | 华中科技大学 | Adjustable clamp for optical fiber |
| CN111999796A (en) * | 2020-08-17 | 2020-11-27 | 南昌大学 | Method for rapidly manufacturing high-reflectivity chalcogenide glass fiber Bragg grating |
| CN116697917A (en) * | 2023-04-28 | 2023-09-05 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
| CN116697917B (en) * | 2023-04-28 | 2024-03-08 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
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| CN102681086B (en) | 2013-06-12 |
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Effective date of registration: 20200420 Address after: 309, building 5, No. 1659-3, Keyuan Road, East District, high tech Zone, Jinan City, Shandong Province 250101 Patentee after: Jinan shankezhiguang optoelectronic technology partnership (L.P.) Address before: 272017, No. 123, Hongxing East Road, Shizhong District, Shandong, Jining Patentee before: LASER INSTITUTE,SHANDONG ACADEMY OF SCIENCES |
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Denomination of invention: A Wavelength Controllable Fiber Bragg Grating Manufacturing Device Effective date of registration: 20230821 Granted publication date: 20130612 Pledgee: Bank of Beijing Co.,Ltd. Jinan Branch Pledgor: Shandong feibosis Photoelectric Technology Co.,Ltd. Registration number: Y2023980052952 |
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Granted publication date: 20130612 Pledgee: Bank of Beijing Co.,Ltd. Jinan Branch Pledgor: Shandong feibosis Photoelectric Technology Co.,Ltd. Registration number: Y2023980052952 |