CN205691812U - The device of fiber grating is made based on gamma emitter - Google Patents
The device of fiber grating is made based on gamma emitter Download PDFInfo
- Publication number
- CN205691812U CN205691812U CN201620548119.7U CN201620548119U CN205691812U CN 205691812 U CN205691812 U CN 205691812U CN 201620548119 U CN201620548119 U CN 201620548119U CN 205691812 U CN205691812 U CN 205691812U
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- China
- Prior art keywords
- fiber
- optical fiber
- gamma emitter
- platform
- coiling device
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Classifications
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- 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
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
- G02B6/02142—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating based on illuminating or irradiating an amplitude mask, i.e. a mask having a repetitive intensity modulating pattern
Abstract
A kind of make fiber grating based on gamma emitter the device in Fabrication Methods of Fiber Gratings field, this device includes: gamma emitter, mask plate, inscription platform and optical fiber coiling device, wherein: inscribing platform is open-topped semiclosed box structure, inscribe and at platform openings, mask plate is set, inscribing platform interior and be provided with optical fiber coiling device, gamma emitter, mask plate and optical fiber coiling device are oppositely arranged the most successively；Described optical fiber coiling device includes: fiber reel and be positioned at the horizontally disposed roller bearing in the left and right sides above fiber reel.The gamma emitter penetrance that this utility model uses is strong, when fiber grating is inscribed without peeling off and rebuilding coat, it is to avoid impact fiber strength and loss, it is ensured that the stability of fiber grating；Gamma emitter active area is big simultaneously, and a plurality of optical fiber can be inscribed by arranged in parallel simultaneously, it is simple to large-scale mass production.
Description
Technical field
The utility model relates to a kind of fiber grating and make the technology in field, specifically a kind of based on gamma emitter
Make the device of fiber grating.
Background technology
Fiber grating has a wide range of applications.In the communications field, Fiber Bragg Grating FBG can be as narrow band filter, to light
Fine dispersion compensates；LPFG can be as band elimination filter.At sensory field, fiber grating is as distributed biography
Sensor, can realize the measurement to physical quantitys such as temperature, strain, electric current, magnetic field, displacement, radiation dose.
In current Fabrication Methods of Fiber Gratings, general employing ultraviolet source is as becoming grid light source, and ultraviolet light can be in major part
Grating is write to some extent on the optical fiber of type.Owing to fiber coating layer is higher to the absorbance of ultraviolet light, directly inscribe
Overlay can be destroyed, so needing to peel off the overlay of optical fiber before inscribing grating, inscribing and rebuilding overlay again after terminating.Above-mentioned mistake
Journey can produce impact to the performance of fiber grating.
Current method of writing direct mainly by changing the realization of optical fiber coating layer material, i.e. uses the material to UV transparent
Material is as optical fiber coating, including acrylate-coated layer and General Electric RTV615 silica gel coat.This technology
Change coat and the mechanical strength of fiber grating is caused irreversible impact；Changing coat makes manufacture efficiency significantly drop
Low.
Utility model content
The fiber grating that this utility model causes for replacing or reconstruction due to coat in prior art impaired, makes
Obtain its mechanical performance and produce the deficiency of impact, it is proposed that a kind of device making fiber grating based on gamma emitter, it is to avoid light
Fine grating needs when inscribing to peel off and rebuild coat, it is ensured that the stability of fiber grating, and is capable of extensive batch
Amount produces.
This utility model is achieved through the following technical solutions,
This utility model relates to a kind of device making fiber grating based on gamma emitter, including: gamma emitter, covers
Template, inscription platform and optical fiber coiling device, wherein: inscribing platform is open-topped semiclosed box structure, inscribe platform and open
Arranging mask plate at Kou, inscribe platform interior and be provided with optical fiber coiling device, gamma emitter, mask plate and optical fiber coiling device are from upper
It is oppositely arranged successively under to.
Described optical fiber coiling device includes: fiber reel and be positioned at the horizontally disposed roller bearing in the left and right sides above fiber reel, its
In: the optical fiber on fiber reel is walked around two roller bearings and is the level of state.
Described fiber reel is column structure, is axially evenly equipped with some groups of screw-like chutes.
Described roller surface is smooth.
Technique effect
Compared with prior art, the gamma emitter penetrance that this utility model uses is strong, when fiber grating is inscribed without
Need to peel off and rebuild coat, it is to avoid coat is peeled off and rebuild fiber strength and the impact of loss, it is ensured that fiber grating
Stability；Gamma emitter active area is big simultaneously, and a plurality of optical fiber can be inscribed by arranged in parallel simultaneously, it is simple to extensive batch
Produce.
Accompanying drawing explanation
Fig. 1 is the variations in refractive index schematic diagram of fiber grating in this utility model manufacturing process；
Fig. 2 is the basic structure schematic diagram of this utility model device；
Fig. 3 is the structural representation of part body in this utility model device, and wherein: (a) is front view, (b) is side-looking
Figure；
Fig. 4 is fiber reel structural representation；
In figure: gamma emitter 1, mask plate 2, inscription platform 3, optical fiber coiling device 4, fiber reel 5, optical fiber 6, roller bearing 7.
Detailed description of the invention
Elaborating embodiment of the present utility model below, the present embodiment is being front with technical solutions of the utility model
Put and implement, give detailed embodiment and concrete operating process, but protection domain of the present utility model does not limits
In following embodiment.
Embodiment 1
As shown in Figures 2 and 3, the present embodiment relates to a kind of device making fiber grating based on gamma emitter, including:
Gamma emitter 1, mask plate 2, inscription platform 3 and optical fiber coiling device 4, wherein: inscribing platform 3 is open-topped semiclosed box
Formula structure, inscribes platform 3 opening part and arranges mask plate 2, inscribes platform 4 and is internally provided with optical fiber coiling device 4, gamma emitter 1,
Mask plate 2 and optical fiber coiling device 4 are oppositely arranged the most successively；
Described optical fiber coiling device 4 includes: fiber reel 5 and be positioned at the horizontally disposed roller bearing in the left and right sides above fiber reel 5
7, the optical fiber 6 on fiber reel 5 is walked around two roller bearings 7 and is the level of state.
Preferably, described gamma emitter 1 is Co 60；The height adjustable of described gamma emitter 1, thus change
Radiant intensity, controls to inscribe effect and efficiency.
Described mask plate 2 can be replaced according to inscribing requirement, meets fiber grating parameter request.
Described inscription platform 3 uses radiant barrier material.
Described optical fiber coiling device 4 can produce different grating array by changing winding method.
Described fiber reel 5 is column structure, is axially evenly equipped with some groups of screw-like chutes, as shown in Figure 4.
Described roller bearing 7 smooth surface.
The present embodiment relates to the manufacture method of the fiber grating of said apparatus, is loaded by optical fiber 6 in optical fiber coiling device 4, logical
Cross and change the grating array that winding method generation is different；Then carry out gamma ray radiation process, radiation terminate after at room temperature
Annealing, owing to optical fiber itself exists subtle difference, needs after annealing to calibrate fiber grating and screen；As it is shown in figure 1, spoke
Penetrating in the annealing process after end, optical fibre refractivity progressively declines, after stablizing, before slightly above being inscribed by refracted portion refractive index.
Described annealing time is 25 days.
Claims (4)
1. one kind based on gamma emitter make fiber grating device, it is characterised in that including: gamma emitter, mask plate,
Inscribe platform and optical fiber coiling device, wherein: inscribing platform is open-topped semiclosed box structure, inscribe and set at platform openings
Putting mask plate, inscribe platform interior and be provided with optical fiber coiling device, gamma emitter, mask plate and optical fiber coiling device depend on from top to bottom
Secondary it is oppositely arranged；
Described optical fiber coiling device includes: fiber reel and be positioned at the horizontally disposed roller bearing in the left and right sides above fiber reel, wherein: light
Optical fiber on fine dish is walked around two roller bearings and is the level of state.
The device making fiber grating based on gamma emitter the most according to claim 1, is characterized in that, described gamma
The height adjustable of radiation source, thus change radiant intensity to control to inscribe effect and efficiency.
3. according to the device making fiber grating based on gamma emitter described in claim 1, it is characterized in that, described inscription is put down
Platform uses radiant barrier material.
4., according to the device making fiber grating based on gamma emitter described in claim 1, it is characterized in that, described fiber reel
For column structure, axially it is evenly equipped with some groups of screw-like chutes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290260 | 2016-05-04 | ||
| CN2016102902606 | 2016-05-04 |
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| Publication Number | Publication Date |
|---|---|
| CN205691812U true CN205691812U (en) | 2016-11-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548119.7U Active CN205691812U (en) | 2016-05-04 | 2016-06-07 | The device of fiber grating is made based on gamma emitter |
| CN201610398751.2A Pending CN105938219A (en) | 2016-05-04 | 2016-06-07 | Apparatus and method for manufacturing fiber grating on the basis of gamma radiation source |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610398751.2A Pending CN105938219A (en) | 2016-05-04 | 2016-06-07 | Apparatus and method for manufacturing fiber grating on the basis of gamma radiation source |
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| CN (2) | CN205691812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938219A (en) * | 2016-05-04 | 2016-09-14 | 上海交通大学 | Apparatus and method for manufacturing fiber grating on the basis of gamma radiation source |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1035425A4 (en) * | 1997-11-26 | 2005-12-28 | Mitsubishi Cable Ind Ltd | Fiber grating, its manufacturing method and its manufacturing device |
| JP4876130B2 (en) * | 2007-04-17 | 2012-02-15 | 株式会社フジクラ | Method for suppressing photodarkening of Yb-doped optical fiber, photodarkening-suppressed Yb-doped optical fiber, and fiber laser |
| CN102998740B (en) * | 2012-11-30 | 2014-04-16 | 燕山大学 | Device and method for simultaneously inscribing multi-wavelength array gratings in ribbon fiber |
| CN103605180A (en) * | 2013-11-20 | 2014-02-26 | 中国科学技术大学 | Etching device for spiral fiber grating fiber grating |
| CN104459875B (en) * | 2014-12-19 | 2017-04-05 | 中国科学院上海光学精密机械研究所 | Phase mask plate automatic switching control equipment |
| CN205691812U (en) * | 2016-05-04 | 2016-11-16 | 上海交通大学 | The device of fiber grating is made based on gamma emitter |
-
2016
- 2016-06-07 CN CN201620548119.7U patent/CN205691812U/en active Active
- 2016-06-07 CN CN201610398751.2A patent/CN105938219A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938219A (en) * | 2016-05-04 | 2016-09-14 | 上海交通大学 | Apparatus and method for manufacturing fiber grating on the basis of gamma radiation source |
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| CN105938219A (en) | 2016-09-14 |
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