CN209001335U - A kind of frequency multiplication of outer-cavity ultraviolet laser - Google Patents
A kind of frequency multiplication of outer-cavity ultraviolet laser Download PDFInfo
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- CN209001335U CN209001335U CN201821409016.8U CN201821409016U CN209001335U CN 209001335 U CN209001335 U CN 209001335U CN 201821409016 U CN201821409016 U CN 201821409016U CN 209001335 U CN209001335 U CN 209001335U
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Abstract
The utility model discloses a kind of frequency multiplication of outer-cavity ultraviolet lasers, including infrared pulsed lasers, former first lens, two frequency-doubling crystals and frequency tripling crystal, former first lens are located at the middle part of infrared pulsed lasers and two frequency-doubling crystals, two frequency-doubling crystal is provided with frequency tripling crystal far from the side of former first lens, four f systems are provided between two frequency-doubling crystal and frequency tripling crystal, the four f system includes the first installing ring and the second installing ring, first installing ring and the second installing ring are arranged side by side, and first installing ring and the second installing ring center of circle horizontal alignment, the inside of first installing ring is equipped with four the first lens of f, the four f system structures processing of separation is integral by the present apparatus, it can be very good to solve the problems, such as that four f systems debug hardly possible in practical applications, and then it is easy to accomplish efficient, it is excellent The ultraviolet laser of beam quality exports.
Description
Technical field
The utility model relates to laser technology field, specifically a kind of frequency multiplication of outer-cavity ultraviolet laser.
Background technique
Ultraviolet laser increasingly shows its unrivaled advantage since wavelength is short, in field of laser processing, due to
Wavelength is short, the available smaller focal beam spot of ultraviolet light, and it is very little to process heat affected area, thus can carry out hyperfine
Laser processing；
Usually realize that ultraviolet output can be realized by inner cavity frequency-doubling or frequency multiplication of outer-cavity, it is conventional for frequency multiplication of outer-cavity
First using actively Q-switched or it is passive Q-adjusted realize that infrared fundamental frequency light pulse exports, outside chamber plus a lens are by the fundamental frequency of output
Light, which is incident in two frequency-doubling crystals after focusing, carries out two frequencys multiplication, and the fundamental frequency light and frequency doubled light of two frequency-doubling crystals outgoing are by another
Mirror is incident to frequency tripling crystal and carries out realizing ultraviolet output with frequency after focusing, but the convex lens of small focal length can bring big ball
Difference, and the convex lens of larger focal length, being only placed on object distance, Shi Caineng obtains lesser imaging facula, such laser farther out
Chamber length is bigger.
In addition it is also contemplated that the space of fundamental frequency light and frequency doubled light is overlapping in frequency tripling crystal.Due to dispersion etc., fundamental frequency
Light and frequency doubled light be not by the way that after lens, their own focus is overlapped, to influence and frequency efficiency and output facula light beam matter
Amount；
It is influenced to improve spherical aberration, dispersion on frequency bring, a kind of method generallyd use is using four f systems, now
The distance between four f systems lens B as shown in Figure 3 and lens C for having are two f, and the distance between object point A and lens B are f, as
The distance between point D and lens C are f, are f due to constitute an accurate four f system requirements object distance, between two lens away from
From for two f, two lens centres alignment, and require two lens light pass surfaces to be placed in parallel, therefore in an experiment, debugging difficulty
It is larger.
Utility model content
The purpose of this utility model is to provide a kind of frequency multiplication of outer-cavity ultraviolet lasers, to solve in the prior art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of frequency multiplication of outer-cavity ultraviolet laser, including
Infrared pulsed lasers, former first lens, two frequency-doubling crystals and frequency tripling crystal, former first lens swash positioned at infrared pulse
The middle part of light device and two frequency-doubling crystals, two frequency-doubling crystal are provided with frequency tripling crystal, institute far from the side of former first lens
It states and is provided with four f systems between two frequency-doubling crystals and frequency tripling crystal, the four f system includes the first installing ring and the second installation
Circle, first installing ring and the second installing ring are arranged side by side, and the center of circle horizontal alignment of the first installing ring and the second installing ring,
The inside of first installing ring is equipped with four the first lens of f, and the inside of second installing ring is equipped with four the second lens of f,
Upper junction plate, first installing ring and the second installation are fixed between first installing ring and the upper surface of the second installing ring
Lower connecting plate is fixed between the lower end surface of circle, the infrared pulsed lasers launch elementary beam.
Preferably, by epoxy resin encapsulated between four f, first lens and the first installing ring, four f second is thoroughly
Pass through epoxy resin encapsulated between mirror and the second installing ring.
Preferably, the upper junction plate, lower connecting plate, the second installing ring and the second installing ring are integrally formed, and upper connection
Plate, lower connecting plate, the second installing ring are made with the first installing ring of plastics.
Preferably, the distance between two frequency-doubling crystal and the first installing ring are f, first installing ring and the second peace
The distance between dress circle is two f, and the distance between second installing ring and frequency tripling crystal are f.
Preferably, the infrared pulsed lasers launch elementary beam, and elementary beam becomes one after former first lens
Secondary focus on light beam, and a focus on light beam becomes two frequency multiplication output beams, and two frequency multiplication output beams after two frequency-doubling crystals
Becoming after four the second lens of f improves light beam, and improves light beam and treble after frequency tripling crystal frequency output beam.
Compared with prior art, the utility model has the beneficial effects that the utility model is provided with the first installing ring, second
Installing ring, upper junction plate and lower connecting plate, the distance between the first installing ring and the second installing ring are two f, and first installs
Circle is fixedly connected by upper junction plate with lower connecting plate with the second installing ring, thus the first installing ring and the second installing ring away from
It is mounted on inside the first installing ring and the second installing ring from for stationary state, four the first lens of f and four the second lens of f, so that four f
First lens are two fixed f distances at a distance from four the second lens of f；
The four f system structures processing of separation is integral by the present apparatus, can be very good to solve four f systems in practical application
The difficult problem of middle debugging, and then the ultraviolet laser output of efficient, excellent beam quality easy to accomplish.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of four f system of the utility model.
Fig. 3 is the structural schematic diagram of former four f systems.
In figure: 1, infrared pulsed lasers；2, former first lens；3, two frequency-doubling crystal；4, four f system；41, four f first
Lens；42, four the second lens of f；43, upper junction plate；44, lower connecting plate；45, the second installing ring；46, the first installing ring；5, three
Frequency-doubling crystal；6, elementary beam；7, a focus on light beam；8, two frequency multiplication output beam；9, improve light beam；10, frequency tripling output light
Beam.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of frequency multiplication of outer-cavity ultraviolet laser, including infrared pulse swash
Light device 1, former first lens 2, two frequency-doubling crystals 3 and frequency tripling crystal 5, former first lens 2 are located at infrared pulsed lasers 1 and two
The middle part of frequency-doubling crystal 3, infrared pulsed lasers 1 are for generating elementary beam 6, and former first lens 2 are for elementary beam 6 to be focused into
Focus on light beam 7, and 7 to two frequency-doubling crystal 3 of focus on light beam, two frequency-doubling crystals 3 be used for by one time 7 turns of focus on light beam
It is turned into two frequency multiplication output beams 8, two frequency-doubling crystals 3 are provided with frequency tripling crystal 5 far from the side of former first lens 2, and two times
Four f systems 4 are provided between frequency crystal 3 and frequency tripling crystal 5, four f systems 4 are for improving two frequency multiplication output beams, 8 spherical aberration, color
Dissipating influences on frequency bring, and the light beam issued from four f systems 4 is to improve light beam 9, and frequency tripling crystal 5 will be for that will improve
Light beam 9 is transformed into frequency tripling output beam 10, and four f systems 4 include the first installing ring 46 and the second installing ring 45, and described first
Installing ring 46 and the second installing ring 45 are arranged side by side, and the center of circle horizontal alignment of the first installing ring 46 and the second installing ring 45, institute
The inside for stating the first installing ring 46 is equipped with four the first lens of f 41, and the inside of second installing ring 45 is equipped with four f second thoroughly
Mirror 42 is fixed with upper junction plate 43, first installation between first installing ring 46 and the upper surface of the second installing ring 45
Be fixed with lower connecting plate 44 between circle 46 and the lower end surface of the second installing ring 45, four f the first lens 41 and the first installing ring 46 it
Between by epoxy resin encapsulated, pass through epoxy resin encapsulated, the first installing ring between four f the second lens 42 and the second installing ring 45
46 and second the distance between installing ring 45 be two f, the distance between the second installing ring 45 and frequency tripling crystal 5 are f, and first pacifies
Lower connecting plate 44 is fixed between dress circle 46 and the lower end surface of the second installing ring 45, upper junction plate 43, lower connecting plate 44, second are pacified
Dress circle 45 is integrally formed with the second installing ring 45, lower connecting plate 44, upper junction plate 43, lower connecting plate 44, the second installing ring 45 and
For second installing ring 45 for connecting the first lens 41 and the second lens 42, the debugging for reducing the first lens 41 and the second lens 42 is difficult
Degree.
The working principle of the utility model is: infrared pulsed lasers 1 launch elementary beam 6, elementary beam 6 is by original first
Lens 2, which focus, becomes a focus on light beam 7, is transformed into two frequency multiplication output beams after 7 to two frequency-doubling crystal 3 of focus on light beam
8, two frequency multiplication output beams 8 carry out spherical aberration, dispersion by four f systems 4 becomes improvement light after the improvement influenced with frequency bring
Beam 9 improves light beam 9 and is transformed into frequency tripling output beam 10 after frequency tripling crystal 5, and the first installation in four f systems 4
The distance between circle 46 and the second installing ring 45 are two f, and the first installing ring 46 and the second installing ring 45 are by upper junction plate 43
It is fixedly connected with lower connecting plate 44, distance is stationary state, and four the first lens of f 41 are mounted on four the second lens of f 42
Inside first installing ring 46 and the second installing ring 45, so that four the first lens of f 41 are fixed at a distance from four the second lens of f 42
Two f distances, thus reduce the first lens 41 and the second lens 42 apart from debugging difficulty.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of frequency multiplication of outer-cavity ultraviolet laser, including infrared pulsed lasers (1), former first lens (2), two frequency-doubling crystals
(3) it is located in infrared pulsed lasers (1) and two frequency-doubling crystals (3) with frequency tripling crystal (5), former first lens (2)
Portion, two frequency-doubling crystal (3) are provided with frequency tripling crystal (5) far from the side of former first lens (2), it is characterised in that: institute
It states and is provided with four f systems (4) between two frequency-doubling crystals (3) and frequency tripling crystal (5), the four f system (4) includes the first installation
It encloses (46) and the second installing ring (45), first installing ring (46) and the second installing ring (45) are arranged side by side, and the first installation
The center of circle horizontal alignment of (46) and the second installing ring (45) is enclosed, the inside of first installing ring (46) is equipped with four f first thoroughly
Mirror (41), the inside of second installing ring (45) are equipped with four the second lens of f (42), first installing ring (46) and second
It is fixed between the upper surface of installing ring (45) upper junction plate (43), first installing ring (46) and the second installing ring (45)
Lower connecting plate (44) are fixed between lower end surface.
2. a kind of frequency multiplication of outer-cavity ultraviolet laser according to claim 1, it is characterised in that: four f, first lens
(41) between the first installing ring (46) through epoxy resin encapsulated, four f, second lens (42) and the second installing ring (45)
Between pass through epoxy resin encapsulated.
3. a kind of frequency multiplication of outer-cavity ultraviolet laser according to claim 1, it is characterised in that: the upper junction plate (43),
Lower connecting plate (44), the second installing ring (45) and the first installing ring (46) are integrally formed, and upper junction plate (43), lower connecting plate
(44), the second installing ring (45) is made with the first installing ring (46) of plastics.
4. a kind of frequency multiplication of outer-cavity ultraviolet laser according to claim 1, it is characterised in that: two frequency-doubling crystal (3)
The distance between first installing ring (46) is f, and the distance between first installing ring (46) and the second installing ring (45) are
Two f, the distance between second installing ring (45) and frequency tripling crystal (5) are f.
5. a kind of frequency multiplication of outer-cavity ultraviolet laser according to claim 1, it is characterised in that: the infrared pulsed lasers
(1) launch elementary beam (6), and elementary beam (6) becomes a focus on light beam (7) after former first lens (2), and primary poly-
Defocused laser beam (7) becomes two frequency multiplication output beams (8) after two frequency-doubling crystals (3), and two frequency multiplication output beams (8) pass through four f
Second lens (42) become afterwards improves light beam (9), and improvement light beam (9) trebles after frequency tripling crystal (5) and exports frequently
Light beam (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409016.8U CN209001335U (en) | 2018-08-30 | 2018-08-30 | A kind of frequency multiplication of outer-cavity ultraviolet laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409016.8U CN209001335U (en) | 2018-08-30 | 2018-08-30 | A kind of frequency multiplication of outer-cavity ultraviolet laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001335U true CN209001335U (en) | 2019-06-18 |
Family
ID=66799094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821409016.8U Active CN209001335U (en) | 2018-08-30 | 2018-08-30 | A kind of frequency multiplication of outer-cavity ultraviolet laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209001335U (en) |
-
2018
- 2018-08-30 CN CN201821409016.8U patent/CN209001335U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230831 Address after: Room 2119, 2nd Floor, Building 7, No. 32 Dongfu Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Baifu Laser Technology Co.,Ltd. Address before: 518100 Zone A, 10th Floor, Building 2, Industrial Park, No. 69 Xiangshan Avenue, Songgang Street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN RADIUM LASER PRECISION CO.,LTD. |