CN110429472A - A kind of high-power dual output exocoel narrow linewidth laser of easy volume production - Google Patents
A kind of high-power dual output exocoel narrow linewidth laser of easy volume production Download PDFInfo
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- CN110429472A CN110429472A CN201910850605.2A CN201910850605A CN110429472A CN 110429472 A CN110429472 A CN 110429472A CN 201910850605 A CN201910850605 A CN 201910850605A CN 110429472 A CN110429472 A CN 110429472A
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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
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
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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
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
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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
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
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Abstract
The present invention relates to field of laser device technology, and disclose a kind of high-power dual output exocoel narrow linewidth laser of easy volume production, including heat sink, the heat sink front offers locating slot, the heat sink positive left end is fixedly installed with laser chip, the heat sink front is fixedly connected with the locating rack positioned at locating slot top and bottom end, and the inside of the locating rack is fixedly connected with the self-focusing lens inside locating slot, and the heat sink front is fixedly connected with the limit plate on the right side of locating rack.The high-power dual output exocoel narrow linewidth laser of the easy volume production, greatly optimize the collimation adjustment of laser chip output light, the feedback light direction for greatly optimizing laser is adjusted, in external cavity optical path design, without the process of secondary focusing after collimating again, therefore in whole optical path, all optical elements do not need to bear excessively high energy density, it not will lead to fever deformation, optical path supports big optical power output.
Description
Technical field
The present invention relates to field of laser device technology, the high-power dual output exocoel narrow-linewidth laser of specially a kind of easy volume production
Device.
Background technique
In addition to free electron laser, the basic functional principle of various lasers is all the same, generates the essential of laser
Condition be that population inversion and gain are greater than loss, so essential component part has excitation (or pumping) source in device
With two parts of working media with metastable energy level, excitation is to be energized into excitation state after working media absorbs extraneous energy,
To realize and population inversion being maintained to create conditions, energisation mode has optical excitation, electric excitation, chemical pumping and nuclear energy excitation
Having metastable level Deng, working media is that stimulated radiation is made to occupy an leading position, to realize light amplification, common group in laser
At part, there are also resonant cavities, but resonant cavity (see optical resonator) and non-vital component part, resonant cavity can make intracavitary
Photon have consistent frequency, phase and traffic direction, thus make laser have good directionality and coherence.
Laser is the core devices of all kinds of optic communications, optical sensor system, and exocoel technology is very important in laser
Means are usually used in the tuning of optical maser wavelength and narrowing for line width, while the laser of outer-cavity structure is easy to produce high-output power,
Therefore it is widely used in the numerous areas such as Physics of Cold Atoms, environmental monitoring, biological monitoring, commercial measurement and spectroscopy,
It needs to fine-tune in collimation and feedback element in the traditional mode of production scheme of current outside cavity gas laser, production technology is made to become non-
Often complicated, outside cavity gas laser optical path can not work under high-power output, so propose a kind of high-power lose-lose of easy volume production
Exocoel narrow linewidth laser solves the problems, such as above-mentioned propose out.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of high-power dual output exocoel narrow-linewidth lasers of easy volume production
Device, has easier in collimation and feedback element and the advantages of can work under high-power output, solves tradition side
It needs to fine-tune in collimation and feedback element in case, so that production technology is become extremely complex, outside cavity gas laser optical path can not
Work the problem under high-power output.
(2) technical solution
It is above-mentioned in collimation and purpose that is easier in feedback element and can working under high-power output to realize, originally
Invention provides the following technical solutions: a kind of high-power dual output exocoel narrow linewidth laser of easy volume production, including heat sink, the heat
Heavy front offers locating slot, and the heat sink positive left end is fixedly installed with laser chip, and the heat sink front is fixed
It is connected with the locating rack positioned at locating slot top and bottom end, the inside of the locating rack is fixedly connected with inside locating slot
Self-focusing lens, the heat sink front are fixedly connected with the limit plate on the right side of locating rack, and the inside of the limit plate is solid
Surely it is connected with positioned at heat sink positive beam-dividing cube, the heat sink positive right end is fixedly connected with fixed plate, described in two
The opposite side of fixed plate is fixedly installed with reset spring, and the reset spring is fixedly installed with far from one end of fixed plate
Fixed pressuring plate is fixedly connected with neonychium on the inside of the fixation clip, and the inside of two neonychiums, which is fixedly connected with, to be located at
Reflection pyramid inside locating slot.
Preferably, described heat sink in " L " shape, heat sink positive left end offers mounting groove.
Preferably, the locating slot is in arcuation, and the laser chip is fixedly mounted in the mounting groove that heat sink front opens up.
Preferably, two locating racks are in arcuation, and the right inner wall of locating rack and it is heat sink between there are gaps.
Preferably, the pitch Z that the length L of the self-focusing lens is 0.25+0.5*N times, wherein pitch Z represents light beam edge
Complete the length of sinusoidal cycles variation in the direction of propagation.
Preferably, the quantity of the limit plate is four, and two limit plates are distributed in the top of locating slot, other two limit
Position plate is distributed in the bottom end of locating slot, and limit plate is in " L " shape.
Preferably, two fixed plates are straight panel, and the fixation clip is in arcuation, and the height of fixation clip is less than
The height of fixed plate.
Preferably, the neonychium includes software and protective cover, and software can be sponge.
Preferably, the reflection pyramid includes the plane of incidence and three reflectings surface, and three reflectings surface constitute taper, three reflections
Angle between face is in 90 degree.
Preferably, four light-emitting surfaces of the beam-dividing cube are coated with high transmittance film.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of high-power dual output exocoel narrow linewidth laser of easy volume production,
Have it is following the utility model has the advantages that
1, the high-power dual output exocoel narrow linewidth laser of the easy volume production, is placed in the heat sink of L-type by laser chip
On, light-emitting surface is directly contacted with cylindrical self-focusing lens, and after the collimation of self-focusing lens, the directional light of outgoing is injected
Beam-dividing cube, the plane of incidence or transmission plane of beam-dividing cube are coated with filtering structure, a part after incident beam-dividing cube
Reflected light is emitted as output light, and another part transmitted light continues to be incident on reflection pyramid, completes 180 on reflection pyramidal plane
Degree reflects, again incident beam-dividing cube, and the reflected light of reversed incidence beam-dividing cube is as the second tunnel output light, transmitted light warp
It crosses the plane of incidence of laser energy inverse injection laser chip after self-focusing lens, to form external resonant cavity concussion, significantly
The collimation adjustment for optimizing laser chip output light, the component having an impact are self-focusing lens, and self-focusing lens effect is
The divergent beams that laser chip is issued are collimated into directional light, and self-focusing lens can be close to laser chip placement, thus be easy
Focus error when control installation can also place No. one or two collimations to improve the collimating effect of self-focusing lens behind
Lens control its distance by the heat sink locating slot of customization, enhance its collimating effect, install and use it is very convenient, if autohemagglutination
Light beam after focus lens slightly dissipates, and secondary collimation can be made with dimpling lens grinding tool, if the light after self-focusing lens
Beam slightly converges, and secondary collimation can be made of dimple grinding tool, and the feedback light direction for greatly optimizing laser is adjusted, and has an impact
Component be reflection pyramid, in external cavity optical path design, then the process without secondary focusing after collimating, therefore in whole optical path, autohemagglutination
Focus lens do not need to bear excessively high energy density, not will lead to fever deformation, and optical path supports big optical power output.
2, the high-power dual output exocoel narrow linewidth laser of the easy volume production, the design easily coupled by optical path, thus greatly
Production link is simplified greatly, since optical path is easily adjusted, thus whole laser dimensions can be substantially reduced, narrow line is miniaturized in production
Wide laser, the optical path of outer part does not need to bear high-energy density, thus can be resistant to the output of great optical power, can be with
It supports the output of two-way laser coherence, suitable for the application of a variety of optical coherences, the side of extension self-focusing lens length can be passed through
Formula, change outer cavity is long, to realize different laser linewidth.
Detailed description of the invention
Fig. 1 is a kind of high-power dual output exocoel narrow linewidth laser structural front view of easy volume production proposed by the present invention；
Fig. 2 is a kind of high-power dual output exocoel narrow linewidth laser structure bottom view of easy volume production proposed by the present invention；
Fig. 3 is that a kind of high-power dual output exocoel narrow linewidth laser of easy volume production proposed by the present invention reflects pyramidal structure
Schematic diagram.
In figure: 1 heat sink, 2 locating slots, 3 laser chips, 4 locating racks, 5 self-focusing lens, 6 limit plates, 7 beam-dividing cubes,
8 fixed plates, 9 reset springs, 10 fixation clips, 11 neonychiums, 12 reflection pyramids.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, a kind of high-power dual output exocoel narrow linewidth laser of easy volume production, including heat sink 1, heat sink 1
In " L " shape, heat sink 1 positive left end offers mounting groove, and heat sink 1 front offers locating slot 2, and locating slot 2 is in arcuation, heat
Heavy 1 positive left end is fixedly installed with laser chip 3, and laser chip 3 is fixedly mounted in the mounting groove that heat sink 1 front opens up,
Heat sink 1 front is fixedly connected with the locating rack 4 positioned at 2 top of locating slot and bottom end, and two locating racks 4 are in arcuation, and fixed
There are gap between the right inner wall and heat sink 1 of position frame 4, the inside of locating rack 4 is fixedly connected with the autohemagglutination inside locating slot 2
Focus lens 5, the pitch Z that the length L of self-focusing lens 5 is 0.25+0.5*N times, wherein it is complete along the direction of propagation to represent light beam by pitch Z
At the length that a sinusoidal cycles change, heat sink 1 front is fixedly connected with the limit plate 6 positioned at 4 right side of locating rack, limit plate
6 quantity is four, and two limit plates 6 are distributed in the top of locating slot 2, other two limit plate 6 is distributed in the bottom of locating slot 2
End, limit plate 6 are in " L " shape, and the inside of limit plate 6 is fixedly connected with positioned at heat sink 1 positive beam-dividing cube 7, beam splitting cube
Four light-emitting surfaces of body 7 are coated with high transmittance film, and heat sink 1 positive right end is fixedly connected with fixed plate 8, and two fixed plates 8 are straight
Plate, the opposite side of two fixed plates 8 are fixedly installed with reset spring 9, and reset spring 9 is fixed far from one end of fixed plate 8
Fixation clip 10 is installed, fixation clip 10 is in arcuation, and the height of fixation clip 10 is less than the height of fixed plate 8, fixed pressure
The inside of plate 10 is fixedly connected with neonychium 11, and neonychium 11 includes software and protective cover, and software can be sponge, two neonychiums
11 inside is fixedly connected with the reflection pyramid 12 inside locating slot 2, and reflection pyramid 12 includes the plane of incidence and three reflections
Face, three reflectings surface constitute taper, and the angle between three reflectings surface is in 90 degree, to reach in collimation and feedback element
In the easier and purpose that can work under high-power output.
When in use, it is placed on heat sink the 1 of L-type by laser chip 3, light-emitting surface is directly saturating with cylindrical self-focusing
Mirror 5 contacts, and after the collimation of self-focusing lens 5, the directional light of outgoing injects beam-dividing cube 7, the incidence of beam-dividing cube 7
Face or transmission plane are coated with filtering structure, and the reflected light of a part after incident beam-dividing cube 7 is emitted as output light, another portion
Point transmitted light continues to be incident on reflection pyramid 12, and 180 degree reflection is completed on reflection 12 face of pyramid, again incident beam splitting cube
Body 7, the reflected light of reversed incidence beam-dividing cube 7 is as the second tunnel output light, and transmitted light is after self-focusing lens 5 by laser
Energy back injects the plane of incidence of laser chip 3, to form external resonant cavity concussion, greatly optimizes the output of laser chip 3
The collimation adjustment of light, the component having an impact are self-focusing lens 5, and self-focusing lens 5, which acts on, to be to issue laser chip 3
Divergent beams are collimated into directional light, and self-focusing lens 5 can be close to the placement of laser chip 3, thus be easy to control coke when installation
Point tolerance can also place one or two collimation lenses behind, pass through customization to improve the collimating effect of self-focusing lens 5
Heat sink 1 locating slot 2, control its distance, enhance its collimating effect, install and use it is very convenient, if after self-focusing lens 5
Light beam slightly dissipate, secondary collimation can be made with dimpling lens grinding tool, if the light beam after self-focusing lens 5 slightly converges
It is poly-, secondary collimation can be made of dimple grinding tool, the feedback light direction for greatly optimizing laser is adjusted, and the component having an impact is
Pyramid 12 is reflected, there are many structure types for corner cube reflector 12, and it acts as the light of parallel incidence is reflected back former direction, pyramid
The feature of reflecting mirror 12 is three mutually perpendicular right-angle surface compositions, and incident ray forms total reflection in three right-angle surfaces, and
And backtracking, it as shown is a thrihedral reflector, is mutually in 90 degree of angles between three faces, it should be noted that this
Any specific structure is not limited in invention, satisfaction belongs to the structure that parallel input light is reflected back former direction of the present invention
Corner reflector, in external cavity optical path design, without the process of secondary focusing after collimation, therefore in whole optical path, all optics members
Part does not need to bear excessively high energy density, not will lead to fever deformation, and optical path supports big optical power output, passes through the easy coupling of optical path
The design of conjunction since optical path is easily adjusted, thus can be substantially reduced whole laser ruler to enormously simplify production link
Very little, production micromation narrow linewidth laser, the optical path of outer part does not need to bear high-energy density, thus can be resistant to greatly
Optical power output, two-way laser coherence can be supported to export, suitable for the application of a variety of optical coherences, can by extend from
The mode of 5 length of condenser lens, change outer cavity is long, to realize different laser linewidth.
In conclusion the high-power dual output exocoel narrow linewidth laser of the easy volume production, is placed in L by laser chip 3
On heat sink the 1 of type, light-emitting surface is directly contacted with cylindrical self-focusing lens 5, after the collimation of self-focusing lens 5, outgoing
Directional light inject beam-dividing cube 7, the plane of incidence or transmission plane of beam-dividing cube 7 be coated with filtering structure, incident beam splitting cube
The reflected light of a part after body 7 is emitted as output light, and another part transmitted light continues to be incident on reflection pyramid 12, anti-
Firing angle, which is bored, completes 180 degree reflection on 12 faces, again incident beam-dividing cube 7, the reflected light conduct of reversed incidence beam-dividing cube 7
Second tunnel output light, transmitted light after self-focusing lens 5 by the plane of incidence of laser energy inverse injection laser chip 3, thus
External resonant cavity concussion is formed, greatly optimizes the collimation adjustment of 3 output light of laser chip, the component having an impact is self-focusing
Lens 5, self-focusing lens 5 act on the divergent beams for being to issue laser chip 3, are collimated into directional light, 5 energy of self-focusing lens
Enough it is close to laser chip 3 to place, thus is easy to control focus error when installation, in order to improve the collimation effect of self-focusing lens 5
Fruit can also place one or two collimation lenses behind, by heat sink 1 locating slot 2 of customization, control its distance, enhance its standard
Straight effect, installs and uses very convenient, if the light beam after self-focusing lens 5 slightly dissipates, can use dimpling lens grinding tool
Secondary collimation is made, if the light beam after self-focusing lens 5 slightly converges, secondary collimation can be made of dimple grinding tool, it is significantly excellent
The feedback light direction for having changed laser is adjusted, and the component having an impact is to reflect pyramid 12, in external cavity optical path design, after collimation
Process without secondary focusing, therefore in whole optical path, all optical elements do not need to bear excessively high energy density, not will lead to
Fever deformation, optical path supports big optical power output, the design easily coupled by optical path, so that production link is enormously simplified, by
It is easily adjusted in optical path, thus whole laser dimensions can be substantially reduced, production micromation narrow linewidth laser, outer part
Optical path does not need to bear high-energy density, thus can be resistant to great optical power output, and two-way laser coherence can be supported defeated
Out, the application suitable for a variety of optical coherences, can be by way of extending 5 length of self-focusing lens, and change outer cavity is long, from
And realize different laser linewidth, it solves and needs to fine-tune in collimation and feedback element in traditional scheme, make to produce work
Extremely complex, the problem that outside cavity gas laser optical path can not work under high-power output that skill becomes.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production, including heat sink (1), it is characterised in that: the heat
The front of heavy (1) offers locating slot (2), and heat sink (1) the positive left end is fixedly installed with laser chip (3), the heat
The front of heavy (1) is fixedly connected with the locating rack (4) positioned at locating slot (2) top and bottom end, and the inside of the locating rack (4) is solid
Surely it is connected with the self-focusing lens (5) internal positioned at locating slot (2), the front of heat sink (1), which is fixedly connected with, is located at positioning
Limit plate (6) on the right side of frame (4), the inside of the limit plate (6) are fixedly connected with positioned at heat sink (1) positive beam-dividing cube
(7), heat sink (1) the positive right end is fixedly connected with fixed plate (8), and two opposite sides of the fixed plate (8) are solid
Dingan County is equipped with reset spring (9), and the reset spring (9) is fixedly installed with fixation clip (10) far from the one end of fixed plate (8),
It is fixedly connected with neonychium (11) on the inside of the fixation clip (10), the inside of two neonychiums (11) is fixedly connected with
The reflection pyramid (12) internal positioned at locating slot (2).
2. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
Described heat sink (1) is in " L " shape, and heat sink (1) positive left end offers mounting groove.
3. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
The locating slot (2) is in arcuation, and the laser chip (3) is fixedly mounted in the mounting groove that heat sink (1) front opens up.
4. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
Two locating racks (4) are in arcuation, and there are gaps between the right inner wall of locating rack (4) and heat sink (1).
5. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
The pitch Z that the length L of the self-focusing lens (5) is 0.25+0.5*N times, wherein pitch Z represents light beam and completes along the direction of propagation
The length of one sinusoidal cycles variation.
6. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
The quantity of the limit plate (6) is four, and two limit plates (6) are distributed in the top of locating slot (2), other two limit plate
(6) it is distributed in the bottom end of locating slot (2), limit plate (6) is in " L " shape.
7. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
Two fixed plates (8) are straight panel, and the fixation clip (10) is in arcuation, and the height of fixation clip (10) is less than fixation
The height of plate (8).
8. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
The neonychium (11) includes software and protective cover, and software can be sponge.
9. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, it is characterised in that:
The reflection pyramid (12) includes the plane of incidence and three reflectings surface, and three reflectings surface constitute taper, the folder between three reflectings surface
Angle is in 90 degree.
10. a kind of high-power dual output exocoel narrow linewidth laser of easy volume production according to claim 1, feature exist
In: four light-emitting surfaces of the beam-dividing cube (7) are coated with high transmittance film.
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