CN105891945A - Continuous production method of fiber bragg grating (FBG) - Google Patents
Continuous production method of fiber bragg grating (FBG) Download PDFInfo
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- CN105891945A CN105891945A CN201610467557.5A CN201610467557A CN105891945A CN 105891945 A CN105891945 A CN 105891945A CN 201610467557 A CN201610467557 A CN 201610467557A CN 105891945 A CN105891945 A CN 105891945A
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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
- G02B6/02133—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference
- G02B6/02138—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference based on illuminating a phase mask
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention belongs to the field of manufacturing of passive components of optical communication, relates to a continuous production method of a fiber bragg grating (FBG), and aims to solve the problem of the existing FBG production that a single fiber is inscribed, that is, the single fiber is positioned on an fiber clamp and then a laser beam is controlled to perform grating inscribing, the FBG is removed from the fiber clamp after inscribing, and the whole operation is manually performed, so that the production efficiency is low. The continuous production method of the FBG is characterized in that a bare fiber and a phase mask are controlled to oppositely continuously perform intermittent linear motion to achieve the continuous production of the FBG. According to the continuous production method of the FBG, the bare fiber is continuously horizontally transversely moved to achieve the continuous production of the FBG, so that a large number of manual operations can be decreased, the production efficiency of the FBG is improved by times, and the manufacturing cost of the FBG can be obviously reduced.
Description
Technical field
The invention belongs to optic communication passive device and manufacture field, relate to manufacturing of fiber grating (FBG), refer specifically to one
Plant the continuous producing method of fiber grating.
Background technology
Fiber grating (FBG) is to utilize UV Photosensitivity in Optical Fiber to pass through the space phase light that uv-exposure is formed in fiber core
Grid, it may be constructed the passive device of a lot of unique properties.Fiber grating by self electromagnetism interference, light weight, volume are little, change
Learn the advantage such as stable in properties and electric insulation, be widely used in the field such as optic communication, Fibre Optical Sensor.
K.O.HiLL in 1993 et al. proposes phase-mask method and makes fiber grating, and phase-mask method makes fiber grating
It is that space interference striped produced by near field diffraction pattern based on phase mask plate forms periodic refractive index change in fiber core
Change, thus form fiber grating.When existing phase-mask method produces fiber grating, first by raw material optical fiber through high ballast hydrogen, then
It is cut into some simple optical fibers, it would be desirable to the optical fiber coating removal inscribing stop position is formed naked by different demands and length
Optical fiber.Take in order during inscription wherein optical fiber by its horizontal fixed clamp fibre holder before phase mask plate,
Make to need the bare fibre inscribing stop position and phase mask plate are parallel to each other and make bare fibre be in the near field of phase mask plate
In range of diffraction, by the tail optical fiber at optical fiber two ends, (optical spectrum analyzer is called for short with optical spectrum analyser
OSA) being connected, then control laser beam incides and on phase mask plate inscribes bare fibre, optical spectrum analyser pair
The grating inscribed is monitored in real time.When the grating parameter inscribed meet require time, control laser beam and close, then will inscribe
The fiber grating become is taken off from fibre holder, completes the making of a fiber grating, next root optical fiber of taking the most again,
So repetitive cycling, it is achieved the batch production of fiber grating.Before and after inscribing at grating, need artificial ceaselessly from fibre clip
It is installed fixing optical fiber in holder and takes off optical fiber, so production efficiency is low so that the manufacturing cost of fiber grating is higher；Simultaneously
When being manually installed and take optical fiber, needing to pause the laser beam making laser instrument energy within the dead time for a long time can not be effective
Utilize, and the important expensive device that laser instrument produces as fiber grating, need often to safeguard, and maintenance cost is held high
Expensive, add the most again the manufacturing cost of fiber grating.
Along with the enforcement of FTTH engineering in the fast development of optical communications industry, particularly global range so that fiber grating
Demand day by day double, but the manufacturing cost of costliness makes it be difficult to promote the use of on a large scale, therefore makes low cost
Fiber grating has become the trend of future development.
Summary of the invention
It is an object of the invention to provide the continuous producing method of a kind of fiber grating, the method utilizes phase mask plate,
Realize the continuous production of fiber grating so that the production efficiency of fiber grating significantly improves, and reduces the manufacturing cost of fiber grating.
The present invention is for achieving the above object, it is provided that following solution:
The continuous producing method of a kind of fiber grating, is to make bare fibre do relative continuous print interval linear motion with phase mask plate
Realize the continuous production of fiber grating.
The continuous producing method of above-mentioned a kind of fiber grating, is to be fixed by phase mask plate, makes bare fibre at phase mask
The side of plate is done continuous print interval linear motion and is realized the continuous production of fiber grating.
The continuous producing method of above-mentioned a kind of fiber grating, is to be fixed by bare fibre, makes phase mask plate at bare fibre
Side is done continuous print interval linear motion and is realized the continuous production of fiber grating.
Above-mentioned interval linear motion is for waiting interval linear motion.
The continuous producing method of above-mentioned a kind of fiber grating, comprises the steps:
1, take one section of bare fibre, place it on the fiber support frame on front side of phase mask plate；
2, diaphragm is opened, and laser beam incides to be inscribed described bare fibre on phase mask plate；
3, diaphragm is closed, and first fiber grating that fiber support frame has been inscribed moves to outside fiber support frame to side
Side；
4, diaphragm is opened, and laser beam incides to be inscribed bare fibre on phase mask plate again；
5, diaphragm is closed, and second fiber grating that fiber support frame has been inscribed moves to fiber support frame to the same side
Outside；
6,2-5 step is repeated, it is achieved the continuous production of fiber grating.
The continuous producing method of above-mentioned a kind of fiber grating, comprises the steps:
1, take one section of bare fibre, be fixed on the fibre holder on front side of phase mask plate；
2, diaphragm is opened, and laser beam incides to be inscribed described bare fibre on phase mask plate；
3, diaphragm is closed, and phase mask plate stops after side shifting one segment distance；Described distance is more than inscribed grating
Length；
4, diaphragm is opened, and laser beam incides to be inscribed bare fibre on phase mask plate again；
5, diaphragm is closed, and phase mask plate stops after a segment distance is moved in the same side；Described distance is more than inscribed grating
Length；
6,2-5 step is repeated, it is achieved the continuous production of fiber grating.
Being provided with pair of parallel reflecting mirror between above-mentioned phase mask plate and bare fibre, laser beam passes through parallel mirror
Afterwards bare fibre is inscribed.
One end tail optical fiber of above-mentioned bare fibre connects has optical spectrum analyser, when described optical spectrum analyser monitors
When the grating parameter inscribed reaches requirement, described diaphragm is closed.
It is identical that above-mentioned laser beam is incident on phase mask plate the time being diffracted on bare fibre by phase mask plate.
Above-mentioned bare fibre is that raw material optical fiber is all removed coat formation or continuous for raw material optical fiber compartment is removed painting
Coating is formed.
Compared with prior art, it has the advantage that and effect the present invention:
1, existing fiber grating makes is that simple optical fiber is inscribed, and needs first to be placed on fibre holder by simple optical fiber, so
After optical fiber two ends tail optical fiber is connected with optical spectrum analyser after control laser beam carry out grating inscription, again by light after having inscribed
Fine and optical spectrum analyser disconnects, and is then taken off from fibre holder by fiber grating, repeats next root optical fiber, so
Circulation realizes the Continuous maching of fiber grating, and whole operating process is all by manual operation, and production efficiency is low；The present invention is by naked
Optical fiber is directly anchored on front side of phase mask plate inscribe, and makes bare fibre and the mutual batch (-type) of phase mask plate move and realize light
The continuous inscription of fine grating, after fiber grating has been inscribed, moves to phase mask plate by the grating horizontal cross on bare fibre
Outside, the most next bare fibre to be inscribed can move to again prepare on front side of phase mask plate to inscribe, and bare fibre and phase place are covered
Template moves the continuous production realizing fiber grating relative to horizontal cross batch (-type) successively, and production efficiency is high.
2, the method for the present invention is due to manual operation minimizing, and production process realizes inscribing continuously so that laser beam energy
Amount is utilized effectively, and laser instrument is as the important expensive device of making fiber grating, and maintenance cost is high, the method for the present invention
Laser instrument can be made to be fully used, reduce the cost of manufacture of fiber grating further.
3, along with the Rapid Implementation of global range inner fiber to family (FTTH) engineering, fiber grating demand doubles day by day,
The especially fiber grating of low cost application in FTTH, can promote the fast development of FTTH engineering.
Accompanying drawing explanation
Fig. 1 is that existing phase mask plate method inscribes grating principle schematic.
Fig. 2 is that embodiment 1 inscribes grating principle schematic.
Fig. 3 is that embodiment 2 inscribes grating principle schematic.
Fig. 4 is the continuous window bare fibre schematic diagram of embodiment 2.
Fig. 5 is that embodiment 3 inscribes grating principle schematic.
Fig. 6 is that embodiment 4 inscribes grating schematic diagram.
Fig. 7 is that embodiment 5 inscribes grating schematic diagram.
In figure: 1-laser beam, 2-diaphragm, 3-phase mask plate, 4-fibre holder, 5-bare fibre, 6-optical spectrum is divided
Analyzer, 7-optical fiber, the clamping traction apparatus of 8-optical fiber, 9-fiber support frame, 10-reflecting mirror, 11-parallel mirror, 12-precision position
Moving stage.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
See Fig. 1.When existing phase mask plate method produces fiber grating, first by raw material optical fiber 7 length according to demand
The laggard horizontal high voltage of cutting carries hydrogen and processes, then will carry the optical fiber 7 after hydrogen and need the fiber segment inscribing grating to carry out peeling process, i.e. goes
Falling the coat of the fiber segment that will inscribe grating, optical fiber 7 is removed the part after coat and is formed bare fibre.Before inscription, open
Laser instrument, opens the fibre holder 4 on front side of phase mask plate 3, manual operation by simple optical fiber 7 fixed clamp fibre clip
In holder 4, and regulate the bare fibre 5 on optical fiber 7 and be positioned at phase mask plate and can inscribe the position range of grating (laser beam is through phase
Interference fringe after bit mask plate diffraction) in, the tail optical fiber at optical fiber 7 two ends is connected with optical spectrum analyser (OSA) 6.Control
Diaphragm 2 opens (unlatching and the stopping controlling the laser beam that laser instrument sends is opened and opened to diaphragm), makes laser beam 1 cover from phase place
On rear side of template 3, the bare fibre 5 on front side of phase mask plate is inscribed by vertical incidence formation diffraction, and optical spectrum analyser 6 is right
The transmission spectrum parameter of grating monitors in real time, after inscription completes, controls diaphragm 2 and makes laser beam 1 close, be then turned off optical fiber
The connection of the tail optical fiber at 7 two ends and optical spectrum analyser 6, opens fibre holder 4, then by the fiber grating inscribed from optical fiber
Taking off (A along Fig. 1 takes off to direction) on clamper 4, complete the making of a fiber grating, so circulation realizes fiber grating
Continuous single making.This kind of method, though batch production can be realized, but its whole manufacturing process, need manually to continuously repeat
Be installed and take off optical fiber, production efficiency is low；Laser instrument needs to continuously open state in process of production simultaneously, and due to manually
Be installed, to take off optical fiber time longer so that the laser beam energy of laser instrument can not be utilized effectively.
The continuous producing method of a kind of fiber grating that the present invention provides, is to make bare fibre do relative company with phase mask plate
Continuous interval linear motion realizes the continuous production of fiber grating.Described bare fibre, refer to raw material optical fiber remove coat (or
Peeling processes) formed afterwards, the bare fibre of the present invention can be the optical fiber after one section of removal coat of some meters, it is also possible to if being
The continuous window bare fibre of dry rice, and described continuous window bare fibre the most equidistant compartment on optical fiber is removed on optical fiber
Coat is formed.
Embodiment 1
See Fig. 2.In the present embodiment, laser beam 1 incides phase through reflecting mirror perpendicular through diaphragm 2 after horizontal direction incidence
On bit mask plate 3, phase mask plate is fixed, make bare fibre 5 do continuous print interval linear motion in the side of phase mask plate
Realize the continuous production of fiber grating.
The continuous generation method of a kind of fiber grating of the present embodiment, comprises the steps:
1, take the optical fiber 7 of some meters after high ballast hydrogen, the coat on optical fiber 7 is all removed formation bare fibre 5；
2, the bare fibre 5 except coat is removed, after bare fibre 5 leading section is passed the fiber support frame 9 on front side of phase mask plate 3
The bare fibre 5 of fiber support frame 9 both sides is clamped to (fiber support frame both sides setting in optical fiber clamping traction apparatus 8 again
There is the through hole that may pass through bare fibre)；Adjust the position between bare fibre 5 and phase mask plate 3, make bare fibre 5 be positioned at laser beam 1
Form diffraction can make in the range of fiber grating；
3, bare fibre 5 rear end tail optical fiber is connected with optical spectrum analyser 6 (reflectance spectrum of monitoring grating)；
4, controlling diaphragm 2 to open, laser beam 1 is incident on phase mask plate 3 and inscribes bare fibre 5, optical spectrum analysis
The current parameter making fiber grating monitored in real time by instrument 6；
5, optical spectrum analyser 6 monitors first fiber grating parameter when reaching requirement, controls diaphragm 2 and makes laser beam close；
6, optical fiber clamping traction apparatus 8 by front extreme direction from first fiber grating having inscribed to bare fibre (along Fig. 2 B to
Direction) lateral traction moves to the outside of fiber support frame 9, and now the bare fibre Duan Ze of second grating to be inscribed just is led
Draw the front side moving to phase mask plate 3；
7, by bare fibre 5 after optical fiber clamping traction apparatus 8 returns to initial clip position after unclamping the initial bare fibre section clamped
The most again grip；
8, step 4-7 is repeated, it is achieved the continuous inscription of second fiber grating, the 3rd optical fibre optical fibre grating etc..
When above-mentioned bare fibre will process, only will need to be finished newly preparing some meters of new bare fibre weldings
Bare fibre tail end, then new some meters of bare fibre tail optical fibers are accessed optical spectrum analyser, are further continued for carrying out optical fiber
Grating Continuous maching.
Embodiment 2
See Fig. 3.As different from Example 1, the bare fibre 5 of embodiment 2 is continuous window bare fibre to embodiment 2, continuous lights
Mouth bare fibre is will to form the bare fibre section that several intervals are connected after optical fiber 7 consecutive intervals segmentation peeling, as shown in Figure 4, i.e.
On optical fiber 7, the coat of compartment removal equal length forms continuous window bare fibre, and grating is to be scribed at the naked light of continuous window
In each fine bare fibre section.When bare fibre is continuous window bare fibre, now optical fiber clamping traction apparatus 8 and fiber support
The interval of frame 9 spacing and window bare fibre arranges equal, to ensure that optical fiber 7 is just clamped in optical fiber clamping traction apparatus 8
Be positioned on fiber support frame 9.In scribing process, after previous window bare fibre 5 has been inscribed, optical fiber clamping traction dress
Putting after 8 traction optical fibers move, next window bare fibre just moves on front side of phase mask plate 3, and window bare fibre 5 both sides
The optical fiber 7 not removing coat is the most just again clamped by optical fiber clamping traction apparatus 8 and is positioned at the through hole of fiber support frame 9
In；Through hole on fiber support frame 9 ensures that optical fiber coating can laterally be moved through in fiber support frame simultaneously.
Embodiment 3
For different grating parameters, the time that laser beam is inscribed is different, when inscribing the grating of same parameter continuously, and laser
The time that bundle inscribes grating is identical, and now, the tail optical fiber of bare fibre need not access optical spectrum analyser to monitor the ginseng of grating
Number, only need to inscribe the time of grating by controlling laser beam.Therefore
The present embodiment as different from Example 1, need not optical spectrum analyser and monitors in real time and inscribed during inscription
The parameter of grating, only need to control inscribed time, i.e. laser beam 1 is incident on phase mask plate 3 and is spread out by phase mask plate
Be mapped to the bare fibre 5 upper time, make laser beam be incident on phase mask plate by phase mask plate be diffracted on bare fibre time
Between identical.
As it is shown in figure 5, the continuous generation method of a kind of fiber grating of the present embodiment, comprise the steps:
1, take the optical fiber 7 of some meters after high ballast hydrogen, the coat on optical fiber 7 is all removed formation bare fibre 5；
2, the bare fibre 5 except coat is removed, after bare fibre 5 leading section is passed the fiber support frame 9 on front side of phase mask plate
The bare fibre 5 of fiber support frame 9 both sides is clamped to (fiber support frame both sides setting in optical fiber clamping traction apparatus 8 again
There is the through hole that may pass through bare fibre)；Adjust the position between bare fibre 5 and phase mask plate 3, make bare fibre 5 be positioned at laser beam 1
Form diffraction can make in the range of fiber grating；
3, controlling diaphragm 2 to open, laser beam 1 is incident on phase mask plate 3 and inscribes bare fibre 5；
4, after some seconds, control diaphragm 2 and make laser beam close；
5, optical fiber clamping traction apparatus 8 is by horizontal for first the fiber grating direction to the right (along the B of Fig. 4 to direction) inscribed
Tethered sliding is to the outside of fiber support frame 9, and now the bare fibre Duan Ze of second grating to be inscribed just is arrived by tethered sliding
The front side of phase mask plate 3；
6, by bare fibre 5 after optical fiber clamping traction apparatus 8 returns to initial clip position after unclamping the initial bare fibre section clamped
The most again grip；
7, step 3-6 is repeated, it is achieved the continuous inscription of second fiber grating, the 3rd optical fibre optical fibre grating etc..
When above-mentioned bare fibre will process, only will need to be finished newly preparing some meters of new bare fibre weldings
Bare fibre tail end, be then further continued for carrying out fiber grating Continuous maching.After the diaphragm 2 of embodiment 3 is opened every time, interval
Equal time back stop 2 is closed, with ensure laser beam 1 be incident on be diffracted into by phase mask plate on phase mask plate 3 naked
Time on optical fiber 5 is identical.
Embodiment 4
Seeing Fig. 6, relative to embodiment 3, the present embodiment is to be fixed by bare fibre 5, makes phase mask plate in the side of bare fibre
Do continuous print interval linear motion and realize the continuous production of fiber grating.Laser beam 1 after horizontal direction incidence, laser beam 1 warp
After crossing reflecting mirror 10 reflection, vertical incidence is incident on phase mask plate 3 by after diaphragm 2, now, and phase mask plate 3 and naked light
Be additionally provided with pair of parallel reflecting mirror 11 between fine 5, laser beam 1 after phase mask plate diffraction again by pair of parallel reflecting mirror 11
The inscription that on bare fibre 5, bare fibre is carried out grating it is diffracted into after reflection.Due to spacing between phase mask plate 3 and bare fibre 5
Farther out, phase mask plate can maintain static the continuous inscription realizing fiber grating, for the ease of phase by bare fibre with transverse shifting
The movement of bit mask plate, reflecting mirror 10, phase mask plate 3, pair of parallel reflecting mirror 11 is fixed in a precision displacement table 12, essence
Mil moving stage 12 can drive whole inscription light path (including reflecting mirror 10, phase mask plate 3, pair of parallel reflecting mirror 11) laterally water
Flat move back and forth back and forth (along Fig. 6 B to or C to direction), the two ends of bare fibre 5 are fixed on fibre holder 4.Carve continuously
When writing, only one section of bare fibre 5 need to be clamped on fibre holder 4, then control precision displacement table 12 from fibre holder 4 it
Between bare fibre 5 left side edge or right side edge laterally carry out batch (-type) and move the continuous inscription realizing fiber grating, one section is naked
After optical fiber has been inscribed, only next section of bare fibre need to be fixed on fibre holder and can again carry out grating inscription.
The continuous generation method of a kind of fiber grating of the present embodiment, comprises the steps:
1, take the optical fiber 7 of some meters after high ballast hydrogen, the coat on optical fiber 7 is all removed formation bare fibre 5；
2, remove the bare fibre 5 except coat, by the fibre holder 4 on front side of the two ends stationary mirror 11 of bare fibre 5, adjust
Position between whole bare fibre 5 and a pair reflecting mirror 11, makes bare fibre be positioned at laser beam 1 and forms diffraction and can make fiber grating
In the range of, make the left side edge of laser beam irradiation bare fibre between fibre holder 4 simultaneously；
3, controlling diaphragm 2 to open, laser beam 1 is incident on parallel mirror 11 and inscribes bare fibre 5；
4, controlling diaphragm 2 after laser beam irradiation some seconds makes laser beam 1 close；
5, (distance is more than inscribed grating for precision displacement table 12 direction to the right (B is to direction along Fig. 6) mobile segment distance
Length) stop afterwards, complete the inscription of first grating；
6, step 3-6 is repeated, it is achieved the continuous inscription of second fiber grating, the 3rd optical fibre optical fibre grating etc..
When precision displacement table 12 moves to the bare fibre right side edge between fibre holder 4 to the right, first paragraph is naked
Optical fiber 5 has been inscribed, and is taken off by the positive section bare fibre 5 of some meters from fibre holder, then naked by some for second segment meters
Optical fiber is clamped on fibre holder (each section of bare fibre length can be identical, it is also possible to different) again, then controls precision
Displacement platform 12 direction to the left (C along Fig. 6 is to direction) batch (-type) moves and realizes the continuous quarter of grating on second segment bare fibre
Write.In order to ensure to inscribe the concordance of grating parameter, in continuous scribing process, laser beam irradiates the time phase of bare fibre every time
With, the distance that precision displacement table moves every time is identical.
Embodiment 5
See Fig. 7.Relative to embodiment 1, when laser beam 1 is after horizontal direction incidence in the present embodiment, laser beam 1 is through reflection
After mirror 10 reflection, vertical incidence is by being incident on phase mask plate 3 after diaphragm 2, now, phase mask plate 3 and bare fibre 5 it
Between be additionally provided with pair of parallel reflecting mirror 11, laser beam 1 is spread out by pair of parallel reflecting mirror 11 after phase mask plate diffraction again
Being mapped on bare fibre 5 carry out bare fibre 5 inscription of grating, bare fibre is fixed on fiber support frame 9 by optical fiber clamping traction
Device 8 draws continuous moving, and bare fibre does continuous print interval linear motion and realizes light in the outside of pair of parallel reflecting mirror 11
The continuous production of fine grating, one end tail optical fiber of bare fibre is concurrently accessed the optical spectrum analyser grating to being inscribed to be carried out in real time
Monitoring.
The continuous generation method of a kind of fiber grating of the present embodiment, comprises the steps:
1, take the optical fiber 7 of some meters after high ballast hydrogen, the coat on optical fiber 7 is all removed formation bare fibre 5；
2, the bare fibre 5 except coat is removed, after bare fibre 5 leading section is passed the fiber support frame 9 on front side of phase mask plate
The bare fibre 5 of fiber support frame 9 both sides is clamped to (fiber support frame both sides setting in optical fiber clamping traction apparatus 8 again
There is the through hole that may pass through bare fibre)；Adjust the position between bare fibre 5 and pair of parallel reflecting mirror 11, make bare fibre 5 be positioned at sharp
Light beam 1 forms diffraction and can make in the range of fiber grating；
3, bare fibre 5 rear end tail optical fiber is connected with optical spectrum analyser 6 (reflectance spectrum of monitoring grating)；
4, controlling diaphragm 2 to open, laser beam 1 is incident on pair of parallel reflecting mirror 11 and inscribes bare fibre 5, optical spectrum
The current parameter making fiber grating monitored in real time by analyser 6；
5, optical spectrum analyser 6 monitors first fiber grating parameter when reaching requirement, controls diaphragm 2 and makes laser beam close；
6, optical fiber clamping traction apparatus 8 by front extreme direction from first fiber grating having inscribed to bare fibre (along Fig. 7 B to
Direction) lateral traction moves to the outside of fiber support frame 9, and now the bare fibre Duan Ze of second grating to be inscribed just is led
Draw the front side moving to phase mask plate 3；
7, by bare fibre 5 after optical fiber clamping traction apparatus 8 returns to initial clip position after unclamping the initial bare fibre section clamped
The most again grip；
8, step 4-7 is repeated, it is achieved the continuous inscription of second fiber grating, the 3rd optical fibre optical fibre grating etc..
When above-mentioned bare fibre will process, residue tail optical fiber is clamped traction apparatus 8, fiber support frame 9 from optical fiber
On take off, simultaneously switch off the connection of residue tail optical fiber and optical spectrum analyser 6, then will newly prepare some meters of new bare fiber ends
The bare fibre 5 of fiber support frame 9 both sides is clamped to after again passing the fiber support frame 9 on front side of phase mask plate by portion again
In optical fiber clamping traction apparatus 8, then fiber grating will be proceeded even on new bare fibre tail optical fiber access optical spectrum analyser 6
Continuous processing.
In the above embodiment of the present invention, for technology as well known to those skilled in the art, the present invention does not all make specifically
Bright, and the concrete steps in above-described embodiment are intended merely to facilitate the citing that manufacture method of the present invention is described, are not
Limiting the scope of the invention, to those skilled in the art, every without departing from spirit of the invention content
Situation and scope in the change of various ways made, belong to scope of the present invention.
Claims (10)
1. a continuous producing method for fiber grating, is to make bare fibre do relative continuous print interval straight line fortune with phase mask plate
Dynamic.
The continuous producing method of a kind of fiber grating the most according to claim 1, it is characterised in that: it is by phase mask plate
Fixing, make bare fibre do continuous print interval linear motion in the side of phase mask plate and realize the continuous production of fiber grating.
The continuous producing method of a kind of fiber grating the most according to claim 1, it is characterised in that: it is that bare fibre is solid
Fixed, make phase mask plate do continuous print interval linear motion in the side of bare fibre and realize the continuous production of fiber grating.
4. according to the continuous producing method of a kind of fiber grating described in claim 1 or 2 or 3, it is characterised in that: between described
Have a rest linear motion for waiting interval linear motion.
The continuous producing method of a kind of fiber grating the most according to claim 4, it is characterised in that: comprise the steps:
Step (1): take one section of bare fibre, is fixed on the fiber support frame on front side of phase mask plate；
Step (2): diaphragm is opened, and laser beam incides to be inscribed described bare fibre on phase mask plate；
Step (3): diaphragm is closed, and first fiber grating that fiber support frame has been inscribed moves to fiber support to side
The outside of frame；
Step (4): diaphragm is opened, and laser beam incides to be inscribed bare fibre on phase mask plate again；
Step (5): diaphragm is closed, and second fiber grating that fiber support frame has been inscribed moves to optical fiber to the same side and prop up
The outside of support；
Step (6): repeat step (2)-step (5), it is achieved the continuous production of fiber grating.
The continuous producing method of a kind of fiber grating the most according to claim 4, it is characterised in that: comprise the steps:
Step (1): take one section of bare fibre, be fixed on the fibre holder on front side of phase mask plate；
Step (2): diaphragm is opened, and laser beam incides to be inscribed described bare fibre on phase mask plate；
Step (3): diaphragm is closed, and phase mask plate stops after side shifting one segment distance；
Step (4): diaphragm is opened, and laser beam incides to be inscribed bare fibre on phase mask plate again；
Step (5): diaphragm is closed, and phase mask plate stops after a segment distance is moved in the same side；
Step (6): repeat step (2)-step (5), it is achieved the continuous production of fiber grating.
The continuous producing method of a kind of fiber grating the most according to claim 6, it is characterised in that: described phase mask
Being provided with pair of parallel reflecting mirror between plate and bare fibre, laser beam is by inscribing bare fibre after parallel mirror.
8. according to the continuous producing method of a kind of fiber grating described in claim 5 or 6, it is characterised in that: also include following
Step: one end tail optical fiber of described bare fibre is accessed optical spectrum analyser；Described optical spectrum analyser monitors to be carved
When the grating parameter write reaches requirement, described diaphragm is closed.
9. according to the continuous producing method of a kind of fiber grating described in claim 5 or 6, it is characterised in that: described laser beam
It is incident on phase mask plate the time being diffracted on bare fibre by phase mask plate identical.
The continuous producing method of a kind of fiber grating the most according to claim 8, it is characterised in that: described bare fibre
All remove coat for raw material optical fiber formed or remove coat formation for the continuous compartment of raw material optical fiber.
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| CN106680930A (en) * | 2017-01-06 | 2017-05-17 | 扬州大学 | Gaussian sampling optical fiber grating for picoseconds delay line and preparation method |
| CN107340565A (en) * | 2017-08-25 | 2017-11-10 | 武汉理工大学 | A kind of online device and method for preparing optical fiber optical grating array automatic switchover wavelength |
| CN107991734A (en) * | 2018-01-03 | 2018-05-04 | 武汉理工大学 | The online stop position labelling apparatus and method for preparing optical fiber optical grating array |
| CN109085684A (en) * | 2018-10-11 | 2018-12-25 | 宜昌睿传光电技术有限公司 | A kind of skeleton optical fiber and grating sensing temperature optical cable |
| CN116520484B (en) * | 2023-07-03 | 2023-09-22 | 上海频准激光科技有限公司 | Fiber grating inscription method and device and fiber grating F-P cavity |
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| CN106680930A (en) * | 2017-01-06 | 2017-05-17 | 扬州大学 | Gaussian sampling optical fiber grating for picoseconds delay line and preparation method |
| CN107340565A (en) * | 2017-08-25 | 2017-11-10 | 武汉理工大学 | A kind of online device and method for preparing optical fiber optical grating array automatic switchover wavelength |
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| CN107991734B (en) * | 2018-01-03 | 2019-09-10 | 武汉理工大学 | The stop position labelling apparatus and method of optical fiber optical grating array are prepared online |
| CN109085684A (en) * | 2018-10-11 | 2018-12-25 | 宜昌睿传光电技术有限公司 | A kind of skeleton optical fiber and grating sensing temperature optical cable |
| CN116520484B (en) * | 2023-07-03 | 2023-09-22 | 上海频准激光科技有限公司 | Fiber grating inscription method and device and fiber grating F-P cavity |
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