CN110488429A - A kind of multikilowatt semiconductor laser fiber coupling module - Google Patents
A kind of multikilowatt semiconductor laser fiber coupling module Download PDFInfo
- Publication number
- CN110488429A CN110488429A CN201910611238.0A CN201910611238A CN110488429A CN 110488429 A CN110488429 A CN 110488429A CN 201910611238 A CN201910611238 A CN 201910611238A CN 110488429 A CN110488429 A CN 110488429A
- Authority
- CN
- China
- Prior art keywords
- light beam
- bar
- axis
- mirror
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4213—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being polarisation selective optical elements
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
- G02B6/4272—Cooling with mounting substrates of high thermal conductivity
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention discloses a kind of multikilowatt semiconductor laser fiber coupling module, and including the pedestal with concave inward structure, concave inward structure is low between the senior middle school of both sides in the same horizontal line；It is set to the first bar of device and the second bar of device that pedestal both sides are high-order and its bar light emission direction misplaces in opposite directions；Low level between in the base corresponds with bar item of the first bar of device and is equipped with the first lens set, sets the second lens set with a bar item one-to-one correspondence for the second bar of device；The first electrode connecting with the first bar of device, the second electrode connecting with the second bar of device are equipped in pedestal laser outlet side；Set on the polarization coupling component of the concave inward structure dipped beam outlet side of pedestal；The focusing coupling assembly in direction is projected set on the light beam of pedestal polarization coupling component；Set on the target optical fiber for the point hot spot exit wound of bullet for focusing coupling assembly.The present invention forms two column light beams by concave inward structure and couples folded battle array space in opposite directions, the coupling output of small size high power-beam is realized, conducive to the encapsulation of multimode.
Description
Technical field
The present invention relates to field of semiconductor lasers, more particularly, to a kind of multikilowatt semiconductor laser optical fiber coupling
Mold block.
Background technique
Multikilowatt semiconductor laser fiber coupling module is widely used in fields such as industrial cutting, welding, claddings.
Multikilowatt semiconductor laser fiber coupling module mainly uses single tube to close beam technology currently on the market, and the semiconductor of multikilowatt swashs
It is more than 100 single tube chips that light device fiber coupling module, which needs quantity, exist assembling difficulty it is big, production efficiency is low and at high cost
The problems such as.Beam technology is closed according to folded battle array, since the beam quality for folding battle array conjunction beam is poor, is coupled in the optical fiber of small core diameter and passes
Defeated difficulty is big, and stability is not also high in use process, and array closes the optical component complexity of beam, similarly there is adjustment hardly possible
Degree is high, low efficiency and problem at high cost.
The present invention closes beam technology using bar item, only need to can realize semiconductor laser coupling with 20 bar units
Output power kilowatt or more, the reduction of the number of devices used, is easier adjustment, relatively easy using optical component, energy
Effective save the cost is suitble to big batch at production.
Summary of the invention
The present invention in order to overcome at least one of the drawbacks of the prior art described above (deficiency), provides a kind of kilowatt level semiconductor
Laser fiber coupling module.
The present invention is directed to solve above-mentioned technical problem at least to a certain extent.
A kind of multikilowatt semiconductor laser fiber coupling module of disclosure of the invention comprising:
Pedestal with concave inward structure, the concave inward structure is low between the senior middle school of both sides in the same horizontal line, so as to form two
Column space light beam couples folded battle array space in opposite directions；
It is respectively arranged at the first bar of device and the second bar of device of a pedestal both sides high position, first bar of device and second
A bar light emission direction for bar device shifts to install in opposite directions；
Among the pedestal low level and with one-to-one first lens set of bar item of the first bar of device, be set in pedestal
Between low level and with one-to-one second lens set of bar item of the second bar of device；
In pedestal far from light beam outlet side, the first electrode connecting with the first bar of device is connect with the second bar of device
Second electrode；
Set on the polarization coupling component of the concave inward structure dipped beam outlet side of pedestal, a branch of polarization state is reflected another
Beam is closed after beam light transmission to go out；
The focusing coupling assembly that direction is projected set on the light beam of pedestal polarization coupling component, by combined beam light beam neighborhood integration
At a hot spot；
Set on the target optical fiber for focusing coupling assembly point hot spot exit wound of bullet.
Preferably, a both sides high position for the pedestal is in longitudinal ladder-like with intermediate low level respectively, and the two is in same level
The step in face corresponds each other.
Preferably, the longitudinal direction is ladder-like arranges from high to low from light beam outlet side.
Preferably, the ladder height of longitudinal ladder is 0.4-0.6mm.
Preferably, the concave inward structure of at least described pedestal is made of copper alloy with high thermal conductivity heat sink material.
Preferably, first lens set and the second lens set respectively include:
Fast axis collimation microscope group, including several and bar item distinguish an one-to-one fast axis collimation mirror, and fast axis collimation mirror is fitted in
In the transmitting Cavity surface of corresponding bar item, for compressing the fast axis divergence angle of laser beam, by after the received beam collimation of institute in fast axle side
To transmitting fast axis collimation light beam, slow-axis direction divergence line hot spot；
Slow axis collimates microscope group, including several slow axis collimating mirrors being arranged in a one-to-one correspondence with this group fast axis collimation mirror, slow axis
Collimating mirror is used to compress the slow axis divergence of fast axis collimation light beam, by after the received fast axis collimation beam collimation of institute in fast axis direction
Emit slow axis collimated light beam；
Microscope group is reflected, including several reflecting mirrors being arranged in a one-to-one correspondence with this group slow axis collimating mirror, slow axis collimated light beam
It is incident to reflecting mirror, slow axis collimated light beam is refracted to polarization coupling component by reflecting mirror.
Preferably, the polarization coupling component includes plane mirror and polarization coupling mirror, and plane mirror is by the first mirror
Wherein one group of first slow axis collimated light beam reflected of piece group or the second lens set reflexes to the plane of incidence of polarization coupling mirror；The
Another group of the second slow axis collimated light beam reflected and the transmission of the first slow axis collimated light beam of one lens set or the second lens set are inclined
Shake light combination mirror, and the first slow axis collimated light beam of reflection closes beam with the second slow axis collimated light beam of transmission and goes out to focusing coupling systems
Part.
Preferably, the focusing coupling assembly includes planar lens, y-axis focus lamp and x-axis focus lamp, the first slow axis collimation
The combined beam light beam of light beam and the second slow axis collimated light beam is transmitted through planar lens, projects after injecting y-axis focus lamp longitudinally gathering
Lateral aggregation is carried out to x-axis focus lamp, either, injection x-axis focus lamp projects to y-axis focus lamp after laterally assembling and carries out longitudinal direction
Aggregation, combined beam light beam are gathered into hot spot in length and breadth and inject target fiber core.
It preferably, further include thermal conductive ceramic gasket and heat-conducting glue, the first lens set and the second lens set are fixed on thermally conductive pottery
Porcelain gasket, thermal conductive ceramic gasket fit in the surface of pedestal concave inward structure by heat-conducting glue.
The invention also discloses a kind of method of multikilowatt semiconductor laser bar fiber coupling, using upper described
Multikilowatt semiconductor laser fiber coupling module realizes that following methods, method include:
Step 1: encapsulation multikilowatt semiconductor laser fiber coupling module, electrode are powered, two groups of number mini-bar items
The two beams superposition light beam projected respectively projects two beams in fast axis direction after fast axis collimation mirror collimation respectively and misplaces in opposite directions in parallel
Fast axis collimation light beam, diverge to linear light spot in slow-axis direction respectively；
Step 2: every beam fast axis collimation light is rolled over after corresponding slow axis collimating mirror collimation, then through corresponding reflecting mirror
The collimated light beam that injection is in the same direction, fast axle and slow axis divergence angle are close；
Step 3: wherein one group of collimated light beam will refract to polarization coupling mirror by reflecting mirror and be reflected by polarization state；
Another group of collimated light beam is directed to polarization coupling mirror and is transmitted out；
Step 4: the light beam reflected is worn with the light beam conjunction beam transmitted penetrates planar lens, x-axis focus lamp is first injected
After transverse focusing, then y-axis focus lamp longitudinal focusing is injected, either, after first injecting the longitudinal focusing of y-axis focus lamp, then injects x-axis
Focus lamp transverse focusing；
Step 5: light beam neighborhood integration injects target fiber core at hot spot.
Compared with prior art, the beneficial effect of technical solution of the present invention is: the present invention closes beam technology using bar item and uses
At least 20 bar units can realize semiconductor laser coupling output power kilowatt or more, the number of devices used
It reduces, is easier adjustment, relatively easy using optical component, the effective save the cost of energy is suitble to industrial mass manufacture.
The present invention also passes through the first bar of device and a bar light emission direction for the second bar of device shifts to install in opposite directions, the bottom of at
The concave inward structure of seat forms two column space light beams and couples folded battle array space in opposite directions, realizes the high-power semiconductor laser of small size
Coupling module, conducive to the encapsulation of multimode.The setting for passing through thermal conductive ceramic gasket simultaneously, efficiently solves because working long hours
Micro- deformation of copper alloy heat sink caused by fuel factor, since the coupling module output beam that the deformation of copper alloy heat sink is led to is inclined
It moves, to improve the service life of this module.
Detailed description of the invention
Fig. 1 is schematic diagram in top down perspective of the present invention；
Fig. 2 is volume rendering schematic diagram of the present invention；
Fig. 3 is that the present invention faces perspective diagram；
Fig. 4 is the structural schematic diagram of pedestal concave inward structure of the present invention.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
As shown in Figs 1-4, a kind of multikilowatt semiconductor laser fiber coupling module of disclosure of the invention comprising:
Pedestal 14 with concave inward structure, the concave inward structure is low between the senior middle school of both sides in the same horizontal line, so as to form
Two column space light beams couple folded battle array space in opposite directions；
It is respectively arranged at the first bar of device 1 and the second bar of device 10 of 14 both sides of a pedestal high position, first bar of device 1
It is shifted to install in opposite directions with a bar light emission direction for the second bar of device 10；
Set on the intermediate low level of pedestal 14 and with one-to-one first lens set of bar item of the first bar of device 1, be set to bottom
The intermediate low level of seat and with one-to-one second lens set of bar item of the second bar of device 10；
In pedestal 14 far from light beam outlet side, the first electrode 3 being connect with the first bar of device 1, with the second bar of device
The second electrode 9 of 10 connections；
Set on the polarization coupling component of the concave inward structure dipped beam outlet side of pedestal 14, a branch of polarization state is reflected another
Beam is closed after a branch of light transmission to go out；
The focusing coupling assembly that direction is projected set on the light beam of pedestal polarization coupling component, by combined beam light beam neighborhood integration
At a hot spot；
Set on the target optical fiber 19 for focusing coupling assembly point hot spot exit wound of bullet.
Bar item of the invention closes beam technology using 2 groups of total at least 20 bar items, generates laser and collimates by fast axle, slow axis
And and close beam, focus, be coupled into hot spot and inject a target fiber core, pass through target optical fiber output.
The present invention also passes through the first bar of device 1 and a bar light emission direction for the second bar of device 10 shifts to install in opposite directions,
Two column space light beams are formed in the concave inward structure of pedestal 14 and couple folded battle array space in opposite directions, realize the high-power semiconductor of small size
Laser coupling module, conducive to the encapsulation of multimode.The setting for passing through thermal conductive ceramic gasket 13 simultaneously efficiently solves because long
Micro- deformation of copper alloy heat sink caused by time service fuel factor, since the coupling module that the deformation of copper alloy heat sink is led to is defeated
Beam deviation out, to improve the service life of this module.
Preferably, a both sides high position for the pedestal 14 is in longitudinal ladder-like with intermediate low level respectively, and the two is in same water
The step of plane corresponds each other.
Preferably, longitudinal ladder is arranged from high to low from light beam outlet side.
Preferably, the ladder height of longitudinal ladder is 0.4-0.6mm.
Preferably, the concave inward structure of at least described pedestal is made of copper alloy with high thermal conductivity heat sink material.
Preferably, first lens set and the second lens set respectively include:
Fast axis collimation microscope group 2/8, including several and bar item distinguish an one-to-one fast axis collimation mirror, the fitting of fast axis collimation mirror
In the transmitting Cavity surface of corresponding bar item, for compressing the fast axis divergence angle of laser beam, by after the received beam collimation of institute in fast axle
Direction emits fast axis collimation light beam, slow-axis direction divergence line hot spot；
Slow axis collimates microscope group 5/6, including several slow axis collimating mirrors being arranged in a one-to-one correspondence with this group fast axis collimation mirror, slowly
Axis collimating mirror is used to compress the slow axis divergence of fast axis collimation light beam, by after the received fast axis collimation beam collimation of institute in fast axle side
To transmitting slow axis collimated light beam；
Microscope group 4/7 is reflected, including several reflecting mirrors being arranged in a one-to-one correspondence with this group slow axis collimating mirror, slow axis collimated light
Beam is incident to reflecting mirror, and slow axis collimated light beam is refracted to polarization coupling component by reflecting mirror.
Fast axis collimation microscope group 2/8 can indicate one group of fast axis collimation microscope group 2, another group of fast axis collimation microscope group 8；Slow axis collimation
Microscope group 5/6 can indicate one group of slow axis collimation microscope group 5, and another group of slow axis collimates microscope group 6；Reflection microscope group 4/7 can indicate one group
Reflect microscope group 4, another group of reflection microscope group 7.
Preferably, the polarization coupling component includes plane mirror 12 and polarization coupling mirror 15, and plane mirror 12 will
Wherein one group of first slow axis collimated light beam reflected of first lens set or the second lens set reflexes to polarization coupling mirror 15
The plane of incidence；Another group of the second slow axis collimated light beam and the first slow axis collimated light reflected of the first lens set or the second lens set
Beam transmission-polarizing light combination mirror 15, the first slow axis collimated light beam of reflection and the second slow axis collimated light beam of transmission close beam and go out to poly-
Burnt coupling assembly.
Preferably, the focusing coupling assembly includes planar lens 16, y-axis focus lamp 17 and x-axis focus lamp 18, and first is slow
The combined beam light beam of axis collimated light beam and the second slow axis collimated light beam is transmitted through planar lens 16, and it is longitudinal to inject y-axis focus lamp 17
It projects after aggregation to x-axis focus lamp 18 and carries out lateral aggregation, either, inject after x-axis focus lamp 18 is laterally assembled and project to y-axis
Focus lamp 17 carries out longitudinally gathering, and the light beam after aggregation injects target optical fiber 19.
It preferably, further include thermal conductive ceramic gasket 13 and heat-conducting glue, the first lens set and the second lens set are fixed on thermally conductive
Ceramic gasket 13, thermal conductive ceramic gasket 13 fit in the surface of 14 concave inward structure of pedestal by heat-conducting glue.
The invention also discloses a kind of methods of multikilowatt semiconductor laser bar fiber coupling, using above-mentioned kilowatt
Level semiconductor laser fiber coupling module realizes that following methods, method include:
Step 1: encapsulation multikilowatt semiconductor laser fiber coupling module, electrode are powered, two groups of number mini-bar items
Project respectively two beams superposition light beam by fast axis collimation mirror 2/8 collimation after fast axis direction project respectively two beams in opposite directions misplace put down
Capable fast axis collimation light beam diverges to linear light spot in slow-axis direction respectively；
Step 2: every beam fast axis collimation light by corresponding slow axis collimating mirror 5/6 collimation after, then pass through corresponding reflecting mirror
Reflect in the same direction, fast axle and the close collimated light beam of slow axis divergence angle；
Step 3: will wherein by plane mirror 12 to refract to polarization coupling mirror 15 anti-by polarization state for one group of collimated light beam
It shoots out；Another group of collimated light beam is directed to polarization coupling mirror 15 and is transmitted out；
Step 4: the light beam reflected is worn with the light beam conjunction beam transmitted penetrates planar lens 16, first injects x-axis and focus
After 16 transverse focusing of mirror, then 18 longitudinal focusing of y-axis focus lamp is injected, either, after first injecting 18 longitudinal focusing of y-axis focus lamp,
17 transverse focusing of x-axis focus lamp is injected again；
Step 5: light beam neighborhood integration injects 19 fibre core of target optical fiber at hot spot.
The present invention devises a kind of multikilowatt semiconductor laser package module, by bar item for designing two groups bars devices
The opposite mode closed beam and go out light of dislocation.The volume of module is greatly simplified, small size is conducive to multiple module envelopes.By using
13 fixing len group of thermal conductive ceramic gasket, then be fixed on copper alloy heat sink 14 by thermal conductive ceramic gasket 13, effectively solve because
The fuel factor that works long hours causes eyeglass brought by copper alloy Light deformation to deviate, and improves semiconductor laser fiber coupling mould
The service life of block.The laser that polarization coupling mirror closes beam is focused further through x-axis focus lamp 17, y-axis focus lamp 18 is devised, two
It is relatively high that axis focuses adjustability, it is easier to by laser coupled to output optical fibre, directly focus again compared to laser line focus mirror
Being coupled in optical fiber more has operability.By using copper alloy with high thermal conductivity heat sink material, high-power semiconductor laser is promoted
Radiating efficiency reduces the efficient encapsulation of semiconductor laser operating temperature, can significantly improve service life of device work and reliable
Property.
Practical operation example:
Semiconductor laser bar item of the present invention using power 80W optical maser wavelength 915nm mini-bar, using interior six
Angle screw is fixed on copper alloy heat sink, and every group of several mini-bar prolong arrangement from light beam outlet side is ladder-like from high to low,
First lens set, the second lens set, polarization coupling component and focus coupling assembly eyeglass be all made of heat-conducting glue be fixed on it is thermally conductive
Ceramic gasket, thermal conductive ceramic gasket fit in copper alloy heat sink.It reflects reflecting mirror in microscope group and uses size 8mmx4mmx1mm, In
Surface 700-1000nm plates reflectance coating, and reflecting mirror and incident beam optimum position are at 45 degree.Plane mirror 12 uses size
700nm-900nm reflectance coating is plated on 8mmx8mmx1mm, surface.Using fast, slow axis collimating mirror, polarization coupling mirror 15, two axis focus lamps
Between cooperation laser beam is handled as target optical fiber acceptable point hot spot, copper alloy heat sink is close to pedestal step difference in height
For 0.6mm, test obtains finally exporting 1530W function through fiber coupling after being powered after 20 bar items encapsulate, and reaches multikilowatt
Not.It is embodied as follows:
1, after encapsulation is powered, fast axle is first passed through by the laser that 1 group of 10 semiconductor laser mini-bar item emits
Collimating mirror 2 collimates, and for laser in fast axis direction collimated light beam after fast axis collimation, slow-axis direction diverges to a branch of linear light spot.
2,8 standard of fast axis collimation mirror is first passed through by the laser that 10 groups of 10 semiconductor laser mini-bar items emit
Directly, for laser in fast axis direction collimated light beam after fast axis collimation, slow-axis direction diverges to a branch of linear light spot.
3, the laser emitted by the first bar of device 1 collimates microscope group 6 using slow axis after the quasi- microscope group 2 of fast axle collimates
At a branch of collimated light beam after collimation.
4, the laser emitted by the second bar of device 10 collimates microscope group 5 using slow axis after the quasi- microscope group 8 of fast axle collimates
At another beam collimated light beam after collimation.
5, after fast and slow axis collimating mirror collimation, the laser emitted by the first bar of device 1 emits by reflection microscope group 7,
At an angle of 90 degrees, 10 beam reflected lights are propagated in same direction for incident light and reflected light, and final superposition closes beam into fast axle and slow axis divergence
The light beam that angle angle is close.
6, after fast and slow axis collimating mirror collimation, the laser emitted by the second bar of device 10 emits by reflection microscope group 4,
At an angle of 90 degrees, 10 beam reflected lights are propagated in same direction for incident light and reflected light, and final superposition closes beam into fast axle and slow axis divergence
Another light beams that angle angle is close.
7, the light beam of the Laser synthesizing reflected is reflected by plane mirror 12, and reflected light and incident light are at 90 degree.
8, the light beam reflected by plane mirror 12 reflexes to focusing coupling assembly by polarization coupling mirror 15.
9, the light beam reflected reflexes to planar lens 16 by polarization coupling mirror 15, and another light beam of reflection penetrates polarization and closes
Beam mirror 15 closes beam with the light beam of reflection and enters planar lens 16.
10,17 are focused by y-axis focus lamp by the laser of planar lens 16, is focused into one using x-axis focus lamp 18
A hot spot.
13, the point hot spot minimum diameter after focusing need to be less than optical fiber core diameter, and the maximum incident angle of laser needs to be less than optical fiber
Numerical aperture NA, meet the fine the inside transmission of coupling condition laser coupled entering light, this example using core diameter 600um optical fiber.
The same or similar label correspond to the same or similar components；
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of multikilowatt semiconductor laser fiber coupling module characterized by comprising
Pedestal with concave inward structure, the concave inward structure is low between the senior middle school of both sides in the same horizontal line, empty so as to form two column
Between light beam couple folded battle array space in opposite directions；
It is respectively arranged at the first bar of device and the second bar of device of a pedestal both sides high position, first bar of device and second bar of item
A bar light emission direction for device shifts to install in opposite directions；
Among the pedestal low level and with one-to-one first lens set of bar item of the first bar of device, be set to low among pedestal
Position and with one-to-one second lens set of bar item of the second bar of device；
In pedestal far from light beam outlet side, the first electrode being connect with the first bar of device, connect with the second bar of bar of device
Two electrodes；
Set on the polarization coupling component of the concave inward structure dipped beam outlet side of pedestal, a branch of polarization state is reflected into another light beam
Beam is closed after transmission to go out；
The focusing coupling assembly that direction is projected set on the light beam of pedestal polarization coupling component, by combined beam light beam neighborhood integration at point
Hot spot；
Set on the target optical fiber for focusing coupling assembly point hot spot exit wound of bullet.
2. multikilowatt semiconductor laser fiber coupling module as described in claim 1, which is characterized in that the two of the pedestal
A side high position is in longitudinal ladder-like with intermediate low level respectively, and the two corresponds each other in the step of same level.
3. multikilowatt semiconductor laser fiber coupling module as claimed in claim 2, which is characterized in that the longitudinal direction ladder
Shape extends from high to low along optical fiber output direction.
4. multikilowatt semiconductor laser fiber coupling module as claimed in claim 2, which is characterized in that the longitudinal direction ladder
Ladder height be 0.4-0.6mm.
5. multikilowatt semiconductor laser fiber coupling module as described in claim 1, which is characterized in that at least described pedestal
Concave inward structure be made of copper alloy with high thermal conductivity heat sink material.
6. multikilowatt semiconductor laser fiber coupling module as described in claim 1, which is characterized in that first eyeglass
Group and the second lens set respectively include:
Fast axis collimation microscope group, including several and bar item distinguish an one-to-one fast axis collimation mirror, and fast axis collimation mirror is fitted in correspondence
In the transmitting Cavity surface of bar item, for compressing the fast axis divergence angle of laser beam, it will be sent out after the received beam collimation of institute in fast axis direction
Penetrate fast axis collimation light beam, slow-axis direction divergence line hot spot；
Slow axis collimates microscope group, including several slow axis collimating mirrors being arranged in a one-to-one correspondence with this group fast axis collimation mirror, slow axis collimation
Mirror is used to compress the slow axis divergence of fast axis collimation light beam, will emit after the received fast axis collimation beam collimation of institute in fast axis direction
Slow axis collimated light beam；
Microscope group is reflected, including several reflecting mirrors being arranged in a one-to-one correspondence with this group slow axis collimating mirror, slow axis collimated light beam is incident
To reflecting mirror, slow axis collimated light beam is refracted to polarization coupling component by reflecting mirror.
7. multikilowatt semiconductor laser fiber coupling module as described in claim 1, which is characterized in that the polarization coupling
Component includes plane mirror and polarization coupling mirror, and plane mirror is by wherein one group of institute of the first lens set or the second lens set
First slow axis collimated light beam of refraction reflexes to the plane of incidence of polarization coupling mirror；Another group of first lens set or the second lens set
The the second slow axis collimated light beam and the first slow axis collimated light beam transmission-polarizing light combination mirror reflected, the first slow axis collimated light of reflection
Beam and the second slow axis collimated light beam of transmission close beam and go out extremely to focus coupling assembly.
8. multikilowatt semiconductor laser fiber coupling module as described in claim 1, which is characterized in that the focusing coupling
Component includes planar lens, y-axis focus lamp and x-axis focus lamp, the conjunction of the first slow axis collimated light beam and the second slow axis collimated light beam
Light beams are transmitted through planar lens, project after injecting y-axis focus lamp longitudinally gathering to the lateral aggregation of x-axis focus lamp progress, or
Person is to inject after x-axis focus lamp is laterally assembled to project to y-axis focus lamp to carry out longitudinally gathering, and combined beam light beam is gathered into one in length and breadth
A hot spot injects target fiber core.
9. such as the described in any item multikilowatt semiconductor laser fiber coupling modules of claim 1-8, which is characterized in that also wrap
Thermal conductive ceramic gasket and heat-conducting glue are included, the first lens set and the second lens set are fixed on thermal conductive ceramic gasket, thermal conductive ceramic gasket
The surface of pedestal concave inward structure is fitted in by heat-conducting glue.
10. a kind of method of multikilowatt semiconductor laser bar fiber coupling, which is characterized in that using such as claim 1-9
The multikilowatt semiconductor laser fiber coupling module realizes that following methods, method include:
Step 1: encapsulation multikilowatt semiconductor laser fiber coupling module, electrode are powered, two groups of number mini-bar item difference
The two beams superposition light beam projected after fast axis collimation mirror collimation fast axis direction project respectively two beams misplace in opposite directions it is parallel fast
Axis collimated light beam diverges to linear light spot in slow-axis direction respectively；
Step 2: every beam fast axis collimation light reflects after corresponding slow axis collimating mirror collimation, then through corresponding reflecting mirror
In the same direction, fast axle and the close collimated light beam of slow axis divergence angle；
Step 3: wherein one group of collimated light beam will refract to polarization coupling mirror by plane mirror and be reflected by polarization state；
Another group of collimated light beam is directed to polarization coupling mirror and is transmitted out；
Step 4: the light beam reflected is worn with the light beam conjunction beam transmitted penetrates planar lens, it is lateral first to inject x-axis focus lamp
After focusing, then y-axis focus lamp longitudinal focusing is injected, either, after first injecting the longitudinal focusing of y-axis focus lamp, then injects x-axis focusing
Mirror transverse focusing；
Step 5: light beam neighborhood integration injects target fiber core at hot spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611238.0A CN110488429A (en) | 2019-07-08 | 2019-07-08 | A kind of multikilowatt semiconductor laser fiber coupling module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611238.0A CN110488429A (en) | 2019-07-08 | 2019-07-08 | A kind of multikilowatt semiconductor laser fiber coupling module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110488429A true CN110488429A (en) | 2019-11-22 |
Family
ID=68546754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910611238.0A Pending CN110488429A (en) | 2019-07-08 | 2019-07-08 | A kind of multikilowatt semiconductor laser fiber coupling module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110488429A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904216A (en) * | 2021-12-13 | 2022-01-07 | 中久光电产业有限公司 | High-power dual-wavelength laser |
| CN115967015A (en) * | 2023-01-06 | 2023-04-14 | 东莞方孺光电科技有限公司 | Dual-wavelength multi-single-beam semiconductor laser beam combining device based on wavelength beam combining technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8437086B2 (en) * | 2010-06-30 | 2013-05-07 | Jds Uniphase Corporation | Beam combining light source |
| CN104836113A (en) * | 2015-05-18 | 2015-08-12 | 浙江合波光学科技有限公司 | Multi-single-tube high-power fiber-coupled semiconductor laser |
| CN104836119A (en) * | 2015-05-26 | 2015-08-12 | 深圳市创鑫激光股份有限公司 | Optical fiber coupled laser |
| CN104969055A (en) * | 2013-03-14 | 2015-10-07 | 雅培实验室 | Beam shaping optics of flow cytometer systems and methods related thereto |
| JP2016099573A (en) * | 2014-11-25 | 2016-05-30 | 株式会社フジクラ | Method for manufacturing optical module |
| CN106785895A (en) * | 2016-11-30 | 2017-05-31 | 中国科学院半导体研究所 | A kind of device that beam is closed based on photon crystal laser |
| WO2019089983A1 (en) * | 2017-11-01 | 2019-05-09 | Nuburu, Inc. | Multi kw class blue laser system |
-
2019
- 2019-07-08 CN CN201910611238.0A patent/CN110488429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8437086B2 (en) * | 2010-06-30 | 2013-05-07 | Jds Uniphase Corporation | Beam combining light source |
| CN104969055A (en) * | 2013-03-14 | 2015-10-07 | 雅培实验室 | Beam shaping optics of flow cytometer systems and methods related thereto |
| JP2016099573A (en) * | 2014-11-25 | 2016-05-30 | 株式会社フジクラ | Method for manufacturing optical module |
| CN104836113A (en) * | 2015-05-18 | 2015-08-12 | 浙江合波光学科技有限公司 | Multi-single-tube high-power fiber-coupled semiconductor laser |
| CN104836119A (en) * | 2015-05-26 | 2015-08-12 | 深圳市创鑫激光股份有限公司 | Optical fiber coupled laser |
| CN106785895A (en) * | 2016-11-30 | 2017-05-31 | 中国科学院半导体研究所 | A kind of device that beam is closed based on photon crystal laser |
| WO2019089983A1 (en) * | 2017-11-01 | 2019-05-09 | Nuburu, Inc. | Multi kw class blue laser system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904216A (en) * | 2021-12-13 | 2022-01-07 | 中久光电产业有限公司 | High-power dual-wavelength laser |
| CN115967015A (en) * | 2023-01-06 | 2023-04-14 | 东莞方孺光电科技有限公司 | Dual-wavelength multi-single-beam semiconductor laser beam combining device based on wavelength beam combining technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101833150B (en) | Fiber coupling module of high-power semiconductor laser | |
| CN105759411B (en) | Fiber coupled laser, fiber coupled laser system and its optimization method | |
| CN101435918B (en) | Tail fiber coupling output device of laser diode array / surface array | |
| CN102089943A (en) | High brightness diode output methods and devices | |
| CN202548385U (en) | Optical fiber coupling module of platform-type turning and reflecting single-tube semiconductor laser | |
| CN102244349B (en) | Neodymium-doped yttrium vanadate crystal all-solid-state laser with double-wavelength end pump | |
| CN102401949A (en) | Optical fiber coupling module of platform-type turning and reflecting single-tube semiconductor laser | |
| CN109256667A (en) | Pump module and solid state laser with it | |
| CN109193342A (en) | Semiconductor laser | |
| CN110488429A (en) | A kind of multikilowatt semiconductor laser fiber coupling module | |
| CN109586163B (en) | Multi-single-tube high-power semiconductor laser packaging structure and laser | |
| CN103346471A (en) | 100W 1064nm end surface pump all-solid-state laser device | |
| CN104300359A (en) | Pigtail output semiconductor laser and coupling method based on array chip type COS | |
| CN110635354A (en) | TO-packaging-based optical fiber coupling semiconductor laser module with green light single tube | |
| CN101710669B (en) | Double-output end face pumping all-solid-state laser | |
| CN103487902B (en) | Optical fiber coupling packaging structure and packaging method for DFB (distributed feedback) semiconductor laser array chip | |
| CN102208740A (en) | Nanosecond pulse fiber laser with circle structure | |
| CN116053933A (en) | Semiconductor laser device | |
| CN214899327U (en) | Multi-tube semiconductor laser | |
| CN201541050U (en) | Double-output end-face pump whole solid state laser | |
| CN109286123A (en) | One kind being based on three paraboloidal disc lasers | |
| CN115693382A (en) | Optical fiber beam combining element for multi-tube-core coupling device and using method thereof | |
| CN114512892A (en) | Multi-single-tube semiconductor laser | |
| CN109586162B (en) | Optical fiber coupling packaging structure of multi-single-tube high-power semiconductor laser and laser | |
| CN111916991A (en) | Polarization type high-power laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |
|
| RJ01 | Rejection of invention patent application after publication |