CN107069393A - Cladding power stripper and optical fiber laser - Google Patents
Cladding power stripper and optical fiber laser Download PDFInfo
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- CN107069393A CN107069393A CN201710438031.9A CN201710438031A CN107069393A CN 107069393 A CN107069393 A CN 107069393A CN 201710438031 A CN201710438031 A CN 201710438031A CN 107069393 A CN107069393 A CN 107069393A
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- Prior art keywords
- optical fiber
- printing opacity
- thermally conductive
- conductive sheet
- cladding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0405—Conductive cooling, e.g. by heat sinks or thermo-electric elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
Abstract
The invention provides a kind of Cladding Power Stripper and optical fiber laser, belong to field of fiber optics.The Cladding Power Stripper includes：Act on optical fiber, printing opacity thermally conductive sheet and encapsulating housing.Act on optical fiber to be located in encapsulating housing, printing opacity thermally conductive sheet is attached at the inwall of encapsulating housing, effect optical fiber surface is provided with luminous power and peels off window, and luminous power peels off window towards printing opacity thermally conductive sheet.The light beam transmitted in the covering of effect optical fiber incides printing opacity thermally conductive sheet after peeling off window outgoing from luminous power, so that light beam is peeled off from covering.Compared to prior art, the structure of Cladding Power Stripper is effectively simplified, the weight of device is alleviated.When applied to optical fiber laser, the structure of optical fiber laser is conducive to simplify.
Description
Technical field
The present invention relates to field of fiber optics, in particular to a kind of Cladding Power Stripper and optical fiber laser.
Background technology
The features such as high-capacity optical fiber laser has high light beam quality, high conversion efficiency, high stability, current industry,
Application in terms of medical treatment, military affairs has boundless prospect.Cladding light stripper is residual for divesting in optical fiber laser
Remaining pump light and higher order mode, improve the indispensable device of quality for outputting laser beam.Remnant pump light that it is divested, high-order mode
The used heat of the just high powered laser system of formula, these used heat are the key factors for causing system unstable, it is therefore desirable to closed
The design of reason dissipates this partial heat.Conventional way is using water-cooling structure encapsulation covering photospallation device that this part is hot
Amount is sponged, but the structure of water-cooling structure encapsulation is more complicated, can increase the weight and complexity of whole system, be unfavorable for light
The structure of fibre laser simplifies.
The content of the invention
It is an object of the invention to provide a kind of Cladding Power Stripper and optical fiber laser, it can effectively improve above-mentioned
Problem.
To achieve these goals, the technical solution adopted by the present invention is as follows：
In a first aspect, the embodiments of the invention provide a kind of Cladding Power Stripper, including：Act on optical fiber, printing opacity heat conduction
Piece and encapsulating housing.The effect optical fiber is located in the encapsulating housing, and the printing opacity thermally conductive sheet is attached at the encapsulating housing
Inwall, the effect optical fiber surface is provided with luminous power and peels off window, and the luminous power is peeled off window and led towards the printing opacity
Backing.The light beam transmitted in the covering of the effect optical fiber incides the printing opacity after peeling off window outgoing from the luminous power
Thermally conductive sheet, so that the light beam is peeled off from the covering.
In preferred embodiments of the present invention, the inwall fitted with the printing opacity thermally conductive sheet of above-mentioned encapsulating housing is provided with
Groove, the printing opacity thermally conductive sheet is arranged in the groove.
In preferred embodiments of the present invention, the inwall fitted with the printing opacity thermally conductive sheet of above-mentioned encapsulating housing is described
The bottom surface of encapsulating housing.
In preferred embodiments of the present invention, above-mentioned luminous power peels off window and is located at the close described of the effect optical fiber
The side of light guide backing.
In preferred embodiments of the present invention, the light beam for peeling off window outgoing by the luminous power incides described
Printing opacity thermally conductive sheet.
In preferred embodiments of the present invention, it is by acting on the pre- of optical fiber surface by described that above-mentioned luminous power, which peels off window,
If region carries out corrosion treatment and formed.
In preferred embodiments of the present invention, above-mentioned Cladding Power Stripper also includes being used to protect the effect optical fiber
Printing opacity protection pipe, the printing opacity protection pipe is sheathed on outside the effect optical fiber, and covers the luminous power stripping window
In preferred embodiments of the present invention, above-mentioned effect optical fiber is double clad silica fibre.
In preferred embodiments of the present invention, above-mentioned printing opacity thermally conductive sheet is sapphire sheet.
Second aspect, the embodiment of the present invention additionally provides a kind of optical fiber laser, including：Laserresonator, heat abstractor
And above-mentioned Cladding Power Stripper.The output end of the laserresonator is coupled with the Cladding Power Stripper, the bag
The side wall that printing opacity thermally conductive sheet is provided with layer power stripper is fitted with the heat abstractor.What the laserresonator was exported swashs
Light incides the effect optical fiber of the Cladding Power Stripper, and the light beam that transmits is from the light in the covering of the effect optical fiber
Power incides the printing opacity thermally conductive sheet after peeling off window outgoing, so that the light beam produces heat by the printing opacity thermally conductive sheet bottom
The encapsulating housing in portion is conducted to heat abstractor radiating.
Cladding Power Stripper provided in an embodiment of the present invention, has abandoned traditional water-cooling structure encapsulation, by effect
Optical fiber surface sets the luminous power towards the printing opacity thermally conductive sheet for being attached at encapsulating housing inwall to peel off window so that in effect optical fiber
The light beam transmitted in covering peels off window from the luminous power and shines printing opacity thermally conductive sheet, so that the heat that light beam is produced is sealed
Fill housing to guide, realize the stripping of fibre cladding luminous power.Compared to prior art, the stripping of covering power is effectively simplified
The structure of device, alleviates the weight of device.Further, when the Cladding Power Stripper being applied into optical fiber laser, Neng Gouyou
Divest the light beam transmitted in fibre cladding to effect, it is to avoid the light beam transmitted in fibre cladding is to optical fiber laser output facula
The influence of quality, and be conducive to the structure of optical fiber laser to simplify.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of structural representation for Cladding Power Stripper that first embodiment of the invention is provided；
Fig. 2 shows Fig. 1 A-A profiles；
Fig. 3 shows the structural representation for the effect optical fiber that first embodiment of the invention is provided；
Fig. 4 shows the light extraction view of the effect optical fiber after corroding through 360 degree；
Fig. 5 shows that the light state that goes out that the luminous power that optical fiber is acted in first embodiment of the invention is peeled off at window is illustrated
Figure；
Fig. 6 shows the structural representation for the optical fiber laser that second embodiment of the invention is provided.
In figure：100- Cladding Power Strippers；110- encapsulating housings；111- heat conduction side wall；1111- grooves；120- is acted on
Optical fiber；121- first ends；The ends of 122- second；H1- top halfs；H2- the latter half；123- fibre cores；1201- square-sections；
130- luminous powers peel off window；140- printing opacity thermally conductive sheets；10- optical fiber lasers；200- laserresonators；300- pumping sources.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, reality of the invention below to providing in the accompanying drawings
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " bottom surface ",
The orientation or position relationship of the instructions such as " interior ", " outer " be based on orientation shown in the drawings or position relationship, or the invention production
The orientation or position relationship usually put when product are used, are for only for ease of the description present invention and simplify description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For limitation of the present invention.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or dark
Show relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection ", " coupling " should be interpreted broadly, for example, " connection " can be fixedly connected or detachably connect
Connect, or be integrally connected, can also be indirectly connected to by intermediary, can be the connection of two element internals.Two optics
Device coupling represent light beam can be transmitted between two optics, for example, in one of optics outgoing light beam
It can transmit to another optics.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
At present, high power fiber laser uses cladding pumping technique, and used optical fiber is big core diameter, double clad light
It is fine.Cladding pumping technique is that powerful multimode pump light is efficiently couple in double clad gain fibre, and pump light is in bag
Transmission and reflection in layer, through excitation rare-earth ion during fibre core, forms population upset, final output laser.However, being limited to gain
Pump light is not fully absorbed in the length of optical fiber, covering, inside the fibre cladding of the laser output of optical fiber laser still
With the presence of remnant pump light.In addition, in addition to remaining pump light, inside the fibre cladding of the laser output of optical fiber laser
Also there is the light of higher order mode.When optical fiber laser power is higher, the power of the light of remnant pump light and higher order mode also compared with
Height, have impact on the quality of optical fiber laser output laser and the laser export head of optical fiber laser may be caused hot.Therefore, need
Cladding Power Stripper is set in the output end of optical fiber laser, with the covering of the laser output of peeling optical fibre laser
Light.However, the cladding light stripper structure of existing use water-cooling structure encapsulation is more complicated, the weight of whole system can be increased and answered
Miscellaneous degree, the structure for being unfavorable for optical fiber laser simplifies.Therefore, the embodiments of the invention provide a kind of Cladding Power Stripper,
To efficiently solve above mentioned problem.
As shown in figure 1, the embodiments of the invention provide a kind of Cladding Power Stripper 100, including：Act on optical fiber 120, thoroughly
Light guide backing 140 and encapsulating housing 110.Act on optical fiber 120 to be located in encapsulating housing 110, printing opacity thermally conductive sheet 140 is attached at encapsulation
The inwall of housing 110, effect optical fiber 120 surface is provided with luminous power and peels off window 130, and luminous power peels off window 130 towards saturating
Light guide backing 140.For example, when encapsulating housing 110 is hollow square, encapsulating housing 110 includes 6 side walls, and printing opacity is led
Backing 140 can be attached at the inner side of any one side wall of encapsulating housing 110.In the present embodiment, by encapsulating housing 110 with
The inwall that printing opacity thermally conductive sheet 140 is fitted is defined as heat conduction side wall 111, to describe.
The light beam transmitted in the covering of effect optical fiber 120 incides printing opacity after the luminous power stripping outgoing of window 130 leads
Backing 140, printing opacity thermally conductive sheet 140 conducts the heat that cladding light is converted into encapsulating housing 110 and the printing opacity thermally conductive sheet 140
The side wall of laminating, realizes the stripping of covering luminous power.Fig. 2 shows Fig. 1 A-A profiles, in order to which Fig. 2 is clearer, does not have
Hatching is shown.Arrow in Fig. 2 is used for the light beam for illustrating to peel off the outgoing of window 130 by luminous power.
Encapsulating housing 110 is made of the higher material of thermal conductivity.It is for instance possible to use Metal Packaging housing 110.Due to
The good thermal conductivity of encapsulating housing 110, the heat that cladding light is converted into is conducted to above-mentioned heat conduction side wall 111, may proceed to towards envelope
Fill other side wall conduction of housing 110.However, it will be understood that compared to the side directly fitted with printing opacity thermally conductive sheet 140
Wall, the temperature ramp-up rate of other side walls of encapsulating housing 110 is slower.Therefore, when needing to use this Cladding Power Stripper 100
Optical fiber laser or the high-power fiber equipment such as fiber amplifier when including radiating module in itself, by above-mentioned heat conduction side wall
111 coordinate with the radiating module, conduction are dispersed in time to the heat of above-mentioned heat conduction side wall 111, it is possible to be effectively prevented from Gao Gong
When rate fiber plant works, due to the stabilization of the significantly rise influence whole system of other side wall temperatures of encapsulating housing 110
Property.In presently preferred embodiments of the present invention, the side wall directly fitted with printing opacity thermally conductive sheet 140 is this Cladding Power Stripper 100
Encapsulating housing 110 bottom.
In presently preferred embodiments of the present invention, it is guided in order that obtaining the heat accumulated in printing opacity thermally conductive sheet 140 and trying one's best
The side of encapsulating housing 110 that light guide backing 140 is attached, in order to further carry out radiating treatment, as shown in Fig. 2 encapsulating shell
The inner surface setting fluted 1111 of the i.e. heat conduction side wall 111 of inwall fitted with printing opacity thermally conductive sheet 140 of body 110, printing opacity heat conduction
Piece 140 is arranged in the groove 1111.The conduction of heat can so be accelerated, be conducive to radiating.Specifically, the chi of groove 1111
It is very little to be set according to the size of printing opacity thermally conductive sheet 140, so that printing opacity thermally conductive sheet 140 is embedded in the groove 1111.Or,
Printing opacity thermally conductive sheet 140 can be pasted onto by heat conduction by optical cement such as OCA (Optically Clear Adhesive) optical cement
The bottom surface of groove 1111 set on side wall 111.Certainly, in addition to the mode of above-mentioned setting groove 1111, optics can also be passed through
Printing opacity thermally conductive sheet 140 is directly pasted onto an inwall of encapsulating housing 110 by glue.
In the present embodiment, the two ends of effect optical fiber 120 are used for the pigtail coupling with optical fiber laser or fiber amplifier.Example
Such as, effect optical fiber 120 can be coupled with the output end of optical fiber laser, and the laser of the output end output of optical fiber laser, which enters, to be made
With optical fiber 120, remnant pump light, the light of higher order mode transmitted in the fibre cladding of the output end of optical fiber laser also enters
Act on the covering of optical fiber 120.When the Cladding Power Stripper 100 that the present embodiment is provided is applied to high-capacity optical fiber laser or height
During power fiber amplifier, effect optical fiber 120 is preferably double clad silica fibre.
It should be noted that the effect optical fiber 120 of Cladding Power Stripper 100 can also use other kinds of optical fiber,
As with the two ends of optical fiber 120 as this Cladding Power Stripper 100 tail optical fiber when, in order to reduce Cladding Power Stripper as far as possible
100 coupling loss, mould field of the effect optical fiber 120 preferably with the luminous power equipment tail optical fiber applied is matched.Therefore, covering power
The effect optical fiber 120 of stripper 100 can select certain types of optical fiber as needed.
In the present embodiment, above-mentioned effect optical fiber 120 includes the end 122 of first end 121 and second, and first end 121 is by encapsulating shell
The first side wall of body 110 is passed using the fibre that enters as Cladding Power Stripper 100, and the second end 122 is by encapsulating housing 110 and
Wall relative second sidewall in side is passed using the fiber as Cladding Power Stripper 100.For convenience with other optical fibre devices
Connection, first end 121 and second can also set optical fiber interface respectively at end 122.
In the present embodiment, luminous power peels off the side that window 130 is located at the close printing opacity thermally conductive sheet 140 of effect optical fiber 120.
For example, when printing opacity thermally conductive sheet 140 is arranged at the bottom surface of encapsulating housing 110, it is assumed that along square-section 1201 shown in dotted lines in Figure 3
Effect optical fiber 120 in encapsulating housing 110 is averagely divided into top half H1 and the latter half H2, the square-section
1201 is parallel with the bottom surface of encapsulating housing 110, and above-mentioned the latter half H2, close to printing opacity thermally conductive sheet 140, top half H1 is remote
Printing opacity thermally conductive sheet 140.Now, luminous power peels off the surface that window 130 is located at the latter half H2 of the effect optical fiber 120, so that
Obtain the covering light beam that the outgoing of window 130 is peeled off by luminous power and incide printing opacity thermally conductive sheet 140.For example, luminous power peels off window 130
Shape can be the bottom surface of encapsulating housing 110 the arc surface for being projected as rectangle, luminous power peel off window area can be
/ 3rd of the fiber surface area of fiber segment where the luminous power peels off window.
In the present embodiment, it can be by that will act on optical fiber that the luminous power that effect optical fiber 120 surface is set, which peels off window 130,
120 surfaces carry out corrosion treatment and formed.It is appreciated that the arrow in Fig. 4 and Fig. 5 represents the cladding light of outgoing.Need explanation
, different from optical fiber surface is carried out into 360 degree of corrosion shown in Fig. 4 so that cladding light can be from the corrosion for acting on optical fiber 120
The outgoing of 360 degree of region.In the present embodiment, it is that the predeterminable area for acting on the surface of optical fiber 120 is carried out into corruption that luminous power, which peels off window 130,
Erosion processing is formed, and the angle of emergence of cladding light of window 130 outgoing is peeled off from luminous power within a preset range, as shown in figure 5,
The size that luminous power peels off window 130 determines the preset range, and the size with specific reference to printing opacity thermally conductive sheet 140 is set.It is preferred that
, the covering light beam for peeling off the outgoing of window 130 by luminous power incides printing opacity thermally conductive sheet 140.
Specifically, as with optical fiber 120 be doubly clad optical fiber when, doubly clad optical fiber include fibre core 123, inner cladding, outsourcing
Layer and coat.The coat of the predeterminable area of doubly clad optical fiber and surrounding layer are peeled off, expose the inner cladding of doubly clad optical fiber,
Then with chemical reagent by inner cladding surface corrosion into scraggly coarse structure, form luminous power and peel off window 130.Or
Person, the method that can also directly use wet etching carries out corrosion to the predeterminable area of doubly clad optical fiber by corrosive agent and caused
Scraggly coarse structure is presented in its inner cladding surface, forms luminous power and peels off window 130.For example, the concentrated sulfuric acid can be used first
The coat of doubly clad optical fiber predeterminable area is removed, then again using the region of the erosion removal coats such as hydrofluoric acid.In double-contracting
When the light beam transmitted in the covering of layer optical fiber peels off window 130 by luminous power, because luminous power peels off inner cladding at window 130
Rough surface and can not be totally reflected, finally let out from inner cladding.
Printing opacity thermally conductive sheet 140 is incided in order that obtaining the cladding light for peeling off the outgoing of window 130 by luminous power and trying one's best, increase is originally
The overburden ratio of Cladding Power Stripper 100, luminous power peels off the size of window 130 and the size of printing opacity thermally conductive sheet 140, Yi Jiguang
Power is peeled off the distance between window 130 and printing opacity thermally conductive sheet 140 needs and is correspondingly arranged according to required overburden ratio.
In addition, for protective effect optical fiber 120, especially protecting above-mentioned luminous power to peel off interior bag exposed in window 130
Layer, above-mentioned Cladding Power Stripper 100 also includes the printing opacity protection pipe for protective effect optical fiber 120, and printing opacity protection pipe is arranged
In outside effect optical fiber 120.In the present embodiment, printing opacity protection pipe can be quartz ampoule, preferably pure quartz ampoule, protective value compared with
It is good.
In the present embodiment, printing opacity thermally conductive sheet 140 can use sapphire sheet, or other transmitances are higher and thermal conductivity
The good material of energy.Because printing opacity thermally conductive sheet 140 has higher transmitance, the cladding light of the outgoing of window 130 is peeled off by luminous power
Middle major part can pass through printing opacity thermally conductive sheet 140, incide heat conduction side wall 111, and fraction is by the lower surface of printing opacity thermally conductive sheet 140
After reflection, heat conduction side wall 111 is again incident on after multiple reflections in printing opacity thermally conductive sheet 140.Use printing opacity thermally conductive sheet 140 can be with
The cladding light that the outgoing of window 130 is peeled off by luminous power and printing opacity thermally conductive sheet 140 is incided effectively " is fettered ", is conducive to this part
Heat is conducted from heat conduction side wall 111.
In addition, in order to avoid part from being again passed through printing opacity by the cladding light that the lower surface of printing opacity thermally conductive sheet 140 reflects as far as possible
Other inwalls of effect optical fiber 120 or encapsulating housing 110 are incided in the upper surface of thermally conductive sheet 140, can also be in printing opacity thermally conductive sheet
140 first surface coating high index of refraction printing opacity glue, the refractive index of the printing opacity glue is higher than the refractive index of printing opacity thermally conductive sheet 140, with
Reduce the cirtical angle of total reflection that light beam enters inside encapsulating housing 110 from the first surface of printing opacity thermally conductive sheet 140, so that increased portion
Divide and be all-trans when inciding the first surface of printing opacity thermally conductive sheet 140 by the cladding light that the lower surface of printing opacity thermally conductive sheet 140 reflects
The probability penetrated, effectively enhances " binding force " of 140 pairs of incident cladding lights of printing opacity thermally conductive sheet.
Cladding Power Stripper 100 provided in an embodiment of the present invention, has abandoned traditional water-cooling structure encapsulation, by making
The luminous power towards the printing opacity thermally conductive sheet 140 for being attached at the inwall of encapsulating housing 110 is set to peel off window 130 with the surface of optical fiber 120,
So that the light beam transmitted in the effect covering of optical fiber 120 peels off window 130 from the luminous power shines printing opacity thermally conductive sheet 140, from
And make it that the packed housing 110 of heat that light beam is produced is guided, and realizes the stripping of fibre cladding luminous power.Compared to existing skill
Art, effectively simplifies the structure of Cladding Power Stripper 100, alleviates the weight of device.Will be provided in an embodiment of the present invention
When Cladding Power Stripper 100 is applied particularly to high-capacity optical fiber laser, the overburden ratio of remnant pump light and higher order mode can
To reach more than 24dB, more than tolerance power can reach kilowatt, temperature rise coefficient is about 3 DEG C/100W during work.Certainly, this hair
The Cladding Power Stripper 100 that bright embodiment is provided can also be applied to fiber amplifier except can apply to optical fiber laser
Device.
Second embodiment
As shown in fig. 6, the embodiments of the invention provide a kind of optical fiber laser 10, including：Pumping source 300, laser resonance
The Cladding Power Stripper 100 that chamber 200, heat abstractor and above-mentioned first embodiment are provided.Cladding Power Stripper 100 it is specific
Structure can be to should refer to above-mentioned first embodiment, and here is omitted.The output end of laserresonator 200 is shelled with covering power
Coupled from device 100, the side wall that printing opacity thermally conductive sheet 140 is provided with Cladding Power Stripper 100 is fitted with heat abstractor.
The pump light that pumping source 300 is exported is incided in laserresonator 200, and the laser that laserresonator 200 is exported enters
The effect optical fiber 120 of Cladding Power Stripper 100 is mapped to, the light beam transmitted in the covering of effect optical fiber 120 is shelled from luminous power
From inciding printing opacity thermally conductive sheet 140 after the outgoing of window 130 so that light beam produce that heat is packaged housing 110 with printing opacity heat conduction
The side wall that piece 140 is fitted is that heat conduction side wall 111 is conducted to heat abstractor radiating.In the present embodiment, above-mentioned heat abstractor can be
The conventional radiator structure of high-capacity optical fiber laser 10, for example, can be water-cooling radiating structure.
It should be noted that when above-mentioned optical fiber laser 10 is high-capacity optical fiber laser 10, Cladding Power Stripper
100 effect optical fiber 120 is preferred to use doubly clad optical fiber.
Specifically, the concrete structure of laserresonator 200 is referred to the laserresonator of existing fiber laser 10
200.For example, laserresonator 200 can include the first reflection part, the second reflection part, gain fibre, optical filter etc..Need
It is noted that the concrete structure of cited laserresonator 200 is only signal, the optical fiber laser 10 that the present embodiment is provided
Laserresonator 200 can include components more more or less than said structure.In addition, humorous for the laser of all optical fibre structure
Shake chamber 200, and the first reflection part and the second reflection part can use Fiber Bragg Grating FBG, and the laserresonator 200
Can be the resonator of loop configuration or the resonator of linear structure.
Optical fiber laser 10 provided in an embodiment of the present invention employs the covering power stripping that above-mentioned first embodiment is provided
Device 100, can be efficiently peeled off the cladding light of the output end of optical fiber laser 10, including remaining pump light and higher order mode
Light.Further, since the covering power vierics have abandoned traditional water-cooling structure encapsulation, compared to existing use water-cooling structure
The optical fiber laser of the covering power vierics of encapsulation, the structure of optical fiber laser 10 that the present embodiment is provided is simpler, and weight is more
Gently.Further, the heat that the cladding light that covering power vierics are peeled off is changed into exports to radiating by heat conduction side wall 111
Device, is conducive to avoiding the stability of the too high influence whole system of temperature of other side walls of encapsulating housing 110.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of Cladding Power Stripper, it is characterised in that including：Act on optical fiber, printing opacity thermally conductive sheet and encapsulating housing, the work
It is located at optical fiber in the encapsulating housing, the printing opacity thermally conductive sheet is attached at the inwall of the encapsulating housing, the effect optical fiber
Surface is provided with luminous power and peels off window, and the luminous power peels off window towards the printing opacity thermally conductive sheet, in the effect optical fiber
Covering in the light beam that transmits peel off window outgoing from the luminous power after incide the printing opacity thermally conductive sheet so that the light beam
Peeled off from the covering.
2. Cladding Power Stripper according to claim 1, it is characterised in that the encapsulating housing is led with the printing opacity
The inwall of backing laminating sets fluted, and the printing opacity thermally conductive sheet is arranged in the groove.
3. Cladding Power Stripper according to claim 2, it is characterised in that the encapsulating housing is led with the printing opacity
The inwall of backing laminating is the bottom surface of the encapsulating housing.
4. Cladding Power Stripper according to claim 1, it is characterised in that the luminous power peels off window positioned at described
Act on the side of the close printing opacity thermally conductive sheet of optical fiber.
5. Cladding Power Stripper according to claim 4, it is characterised in that window outgoing is peeled off by the luminous power
The light beam incides the printing opacity thermally conductive sheet.
6. Cladding Power Stripper according to claim 1, it is characterised in that it is by inciting somebody to action that the luminous power, which peels off window,
The predeterminable area of the effect optical fiber surface carries out corrosion treatment and formed.
7. Cladding Power Stripper according to claim 1, it is characterised in that also including for protecting the effect optical fiber
Printing opacity protection pipe, the printing opacity protection pipe is sheathed on outside the effect optical fiber, and covered the luminous power and peeled off window.
8. Cladding Power Stripper according to claim 1, it is characterised in that the effect optical fiber is the quartzy light of double clad
It is fine.
9. Cladding Power Stripper according to claim 1, it is characterised in that the printing opacity thermally conductive sheet is sapphire sheet.
10. a kind of optical fiber laser, it is characterised in that including：Appoint in laserresonator, heat abstractor and such as claim 1-9
Cladding Power Stripper described in one, the output end of the laserresonator is coupled with the Cladding Power Stripper, described
The side wall that printing opacity thermally conductive sheet is provided with Cladding Power Stripper is fitted with the heat abstractor；
The laser light incident of laserresonator output to the Cladding Power Stripper effect optical fiber, in the effect optical fiber
Covering in the light beam that transmits peel off window outgoing from the luminous power after incide the printing opacity thermally conductive sheet so that the light beam
Produce heat and conducted by the encapsulating housing of the printing opacity thermally conductive sheet bottom to the heat abstractor and radiated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438031.9A CN107069393A (en) | 2017-06-12 | 2017-06-12 | Cladding power stripper and optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438031.9A CN107069393A (en) | 2017-06-12 | 2017-06-12 | Cladding power stripper and optical fiber laser |
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| Publication Number | Publication Date |
|---|---|
| CN107069393A true CN107069393A (en) | 2017-08-18 |
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| CN201710438031.9A Pending CN107069393A (en) | 2017-06-12 | 2017-06-12 | Cladding power stripper and optical fiber laser |
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Cited By (9)
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| CN107565351A (en) * | 2017-10-30 | 2018-01-09 | 广东工业大学 | Optical fiber laser preparation method |
| CN109239848A (en) * | 2018-09-29 | 2019-01-18 | 武汉锐科光纤激光技术股份有限公司 | A kind of optical-fiber bundling device |
| CN109546523A (en) * | 2017-09-22 | 2019-03-29 | 深圳联品激光技术有限公司 | A kind of the photospallation device and photospallation method of optical fiber laser |
| CN111596403A (en) * | 2020-05-08 | 2020-08-28 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber device and method for manufacturing the same |
| CN112332207A (en) * | 2021-01-04 | 2021-02-05 | 中国工程物理研究院激光聚变研究中心 | Laser collimating optical fiber, system, manufacturing method and storage medium |
| CN112421358A (en) * | 2020-11-06 | 2021-02-26 | 深圳市华星光电半导体显示技术有限公司 | Cladding optical power stripper and laser |
| CN113219594A (en) * | 2021-05-13 | 2021-08-06 | 合肥正阳光电科技有限责任公司 | Fast optical fiber coupler for optical fiber telephone |
| CN113809625A (en) * | 2021-11-18 | 2021-12-17 | 武汉聚合光子技术有限公司 | Side pump combiner for high-power fiber laser system |
| WO2023071274A1 (en) * | 2021-10-29 | 2023-05-04 | 华为技术有限公司 | Light splitting method and related device |
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| CN104570212A (en) * | 2014-12-31 | 2015-04-29 | 西南技术物理研究所 | Double-cladding optical fiber cladding light stripping method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109546523A (en) * | 2017-09-22 | 2019-03-29 | 深圳联品激光技术有限公司 | A kind of the photospallation device and photospallation method of optical fiber laser |
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| CN109239848A (en) * | 2018-09-29 | 2019-01-18 | 武汉锐科光纤激光技术股份有限公司 | A kind of optical-fiber bundling device |
| CN111596403A (en) * | 2020-05-08 | 2020-08-28 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber device and method for manufacturing the same |
| CN112421358A (en) * | 2020-11-06 | 2021-02-26 | 深圳市华星光电半导体显示技术有限公司 | Cladding optical power stripper and laser |
| CN112332207A (en) * | 2021-01-04 | 2021-02-05 | 中国工程物理研究院激光聚变研究中心 | Laser collimating optical fiber, system, manufacturing method and storage medium |
| CN113219594A (en) * | 2021-05-13 | 2021-08-06 | 合肥正阳光电科技有限责任公司 | Fast optical fiber coupler for optical fiber telephone |
| WO2023071274A1 (en) * | 2021-10-29 | 2023-05-04 | 华为技术有限公司 | Light splitting method and related device |
| CN113809625A (en) * | 2021-11-18 | 2021-12-17 | 武汉聚合光子技术有限公司 | Side pump combiner for high-power fiber laser system |
| CN113809625B (en) * | 2021-11-18 | 2022-02-18 | 武汉聚合光子技术有限公司 | Side pump combiner for high-power fiber laser system |
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