CN111370980A - Double-sided transparent material attached waveguide glass slab laser - Google Patents
Double-sided transparent material attached waveguide glass slab laser Download PDFInfo
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- CN111370980A CN111370980A CN202010086652.7A CN202010086652A CN111370980A CN 111370980 A CN111370980 A CN 111370980A CN 202010086652 A CN202010086652 A CN 202010086652A CN 111370980 A CN111370980 A CN 111370980A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/17—Solid materials amorphous, e.g. glass
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- Lasers (AREA)
Abstract
A double-sided transparent material attached waveguide glass slab laser comprises a pumping light source, a cooling liquid, a light-gathering cavity, a double-sided transparent material attached waveguide glass slab and a laser cavity mirror, the pump light source is arranged in the cooling liquid, two large faces of the double-sided transparent material attached waveguide glass slab are contacted with the cooling liquid, the light emitted by the pump light source is converged on the novel waveguide glass slab with the double-sided transparent material attached structure by the light-gathering cavity, the light of the laser wavelength passes through the novel waveguide glass slab with the double-sided transparent material attached structure, the laser is generated after oscillation between the laser cavity mirrors, and the refractive index of the transparent material sheet attached to the two sides is smaller than that of the glass plate strip, so that the waveguide transmission of the laser beam in the glass plate strip is ensured, the waveguide slab laser has the advantages that the waveguide slab laser is independent of the placement position of the glass slab, the design of the waveguide slab laser is simplified, and the influence of a blind area of the traditional waveguide slab laser is eliminated.
Description
Technical Field
The invention relates to the fields of laser processing, laser shock peening, laser material surface treatment, laser ranging and photoelectric countermeasure. In particular to a novel waveguide glass slab laser with a double-sided transparent material attachment structure.
Background
With the development of laser technology, high-power solid lasers have the advantages of high efficiency, small size, long service life, convenience in maintenance and the like, and are more and more widely applied. In 1969, the general electric company in the united states proposed the concept of slab laser, which adopts the slab geometry of surface pumping to obtain laser output with high beam quality and high average power through reasonable design. In slab lasers, laser transparent material slabs and glass slabs are typically used for the gain medium. The laser transparent material strip has high heat conductivity coefficient and high strength, and has advantages in ultrahigh repetition frequency and low energy strip lasers, and the laser transparent material strip has high preparation difficulty and low energy storage due to large size, so that the application of the laser transparent material strip to higher energy lasers is limited.
And the glass lath has advantages in high-energy laser output due to high energy storage characteristic and mature large-size preparation process. The glass slab laser comprises a waveguide glass slab laser and a waveguide glass slab laser, wherein laser in the waveguide glass slab laser is transmitted in a glass slab according to a total reflection route, so that the influence of a heat effect can be eliminated, and the laser beam quality is improved. The laser glass has small heat conductivity coefficient, so that the working frequency needs to be increased by reducing the thickness of the glass in practical use, the mechanical strength of the glass is poor, the glass is easy to deform in operation, and the quality of a laser beam is reduced; in addition, due to the poor chemical stability of the glass, in the long-term repetition frequency operation, the cooling water and the surface of the glass strip are easy to generate chemical reaction, so that the micro-cracks on the surface of the glass strip are deepened, the quality of laser beams is reduced, the damage threshold is reduced, and the service life of the glass strip laser is limited. When the waveguide glass slab laser is designed, the position for placing the glass slab is required to be in a blind area for laser beam propagation, otherwise, the total reflection propagation of the light beam in the glass slab is damaged, and the design difficulty of the laser is increased. These factors severely limit the application of waveguide glass slab lasers to the field of high repetition rate, high energy lasers.
Disclosure of Invention
The invention aims to overcome the defects of the traditional waveguide glass slab and provides a double-sided transparent material attached waveguide glass slab laser.
The technical scheme of the invention is as follows:
a double-sided transparent material attached waveguide glass slab laser comprises a pumping light source, cooling liquid, a light-gathering cavity, a double-sided transparent material attached waveguide glass slab and a laser cavity mirror, wherein the pumping light source is arranged in the cooling liquid, two large faces of the double-sided transparent material attached waveguide glass slab are in contact with the cooling liquid, light emitted by the pumping light source is gathered on the double-sided transparent material attached waveguide glass slab by the light-gathering cavity, light with laser wavelength passes through the double-sided transparent material attached waveguide glass slab to generate laser after oscillation between the laser cavity mirror, the double-sided transparent material attached waveguide glass slab comprises a first transparent material thin plate, a second transparent material thin plate and a glass slab, and the first transparent material thin plate and the second transparent material thin plate are respectively attached to two opposite faces of the glass slab; the refractive index of the transparent material thin plate is smaller than that of the glass plate strip, so that the laser beam is ensured to be transmitted in the glass plate strip in a total reflection mode.
In another preferred example, the first sheet of transparent material, the second sheet of transparent material and the glass panel have no air gap therebetween.
In another preferred example, the material used for the first transparent material sheet and the second transparent material sheet includes, but is not limited to, one of YAG, sapphire and white stone, quartz glass or a thin film.
In another preferred example, the glass lath is one of phosphate, silicate, germanate, aluminate, fluoride, fluorophosphate or phosphorus-fluorine glass.
In another preferred embodiment, the glass ribbon is a rare earth ion or transition metal ion doped glass.
In another preferred example, the rare earth ions include, but are not limited to, one or more of neodymium, ytterbium, erbium, praseodymium, thulium, or holmium ions.
In another preferred example, the transition metal ions include, but are not limited to, one or more of nickel, cobalt, and titanium ions.
In another preferred example, the thermal conductivity of the first transparent material sheet and the second transparent material sheet is not less than that of the glass lath.
In another preferred example, the folding strength of the first transparent material sheet and the second transparent material sheet is not less than the folding strength of the glass lath.
In another preferred example, the first transparent material sheet and the second transparent material sheet have the same width as the glass lath.
In another preferred example, the first transparent material sheet and the second transparent material sheet have a thickness smaller than that of the glass lath.
In another preferred embodiment, the length of the first and second sheets of transparent material is less than the thickness of the glass panel
In another preferred example, the pumping light source may be a xenon lamp, a krypton lamp, a semiconductor laser, a light emitting diode, or the like, and the light-gathering cavity may be a triangular illumination cavity, an involute illumination cavity, a rectangular illumination cavity, or the like.
The invention is not only suitable for glass strip lasers, but also for laser glass strip amplifiers.
The invention has the advantages that:
after the transparent material is attached to the two sides of the waveguide glass slab, the strength of the waveguide glass slab attached to the two sides of the waveguide glass slab is increased due to the fact that the transparent material is high in strength, high in heat conduction and good in chemical stability, and the cooling water is in contact with the surface of the transparent material, so that the glass slab is not in contact with the cooling water, and microcracks caused by chemical reactions due to the fact that the cooling water is in contact with the surface of the glass slab are eliminated. The refractive index of the transparent material thin plate with the two sides attached is smaller than that of the glass slab, so that waveguide transmission of laser beams in the glass slab is guaranteed, the position of the glass slab is irrelevant to the arrangement position of the glass slab, the design of a waveguide slab laser is simplified, and the influence of a blind area of a traditional waveguide slab laser is eliminated. Therefore, the waveguide glass slab with the double-sided transparent material attached integrates the advantages of the transparent material and the glass, and has the advantages of high strength, good light beam quality, long service life, low preparation difficulty, low price and the like. The waveguide glass slab with the novel double-sided transparent material attachment structure can be applied to the laser field with high repetition frequency, high power and long service life.
Drawings
In the accompanying drawings, like parts and features have like reference numerals. Many of the figures are schematic and may not be to scale.
FIG. 1 is a schematic front view of the structure of the present invention.
FIG. 2 is a schematic side view of the structure of the present invention.
FIG. 3 is a schematic structural view of a double-sided transparent material-attached waveguide glass slab of the present invention.
Fig. 4 is a schematic representation of a glass ribbon and a sheet of transparent material of the present invention.
FIG. 5 is a schematic diagram of the laser path of the present invention.
The reference numbers are as follows:
b: the double-sided transparent material is attached to the waveguide glass slab; b0: a glass panel; b1: a first sheet of transparent material; b2: a second sheet of transparent material; d: a pump light source; c: cooling liquid; m: a laser cavity mirror; q: a light collection cavity.
Detailed Description
For the purpose of facilitating understanding of the embodiments of the present invention, the following description will be made in terms of several specific embodiments with reference to the accompanying drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
It is to be noted that, in the claims and the specification of the present patent, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1, the double-sided transparent material attached waveguide glass slab laser includes a pump light source D, a coolant L, a condensing cavity Q, a double-sided transparent material attached waveguide glass slab B, and a laser cavity mirror M. Fig. 1 is a front view of the present invention, and fig. 2 is a side view of the present invention. The pumping light source D is arranged in the cooling liquid L, two large faces of the double-face transparent material attached waveguide glass slab B are in contact with the cooling liquid C, light emitted by the pumping light source D is converged on the double-face transparent material attached waveguide glass slab B through the light-gathering cavity Q, light of laser wavelength passes through the double-face transparent material attached waveguide glass slab B, and laser is generated after oscillation is carried out between the laser cavity mirror M.
As shown in fig. 3, a double-sided transparent material attached waveguide glass slab comprises a first sheet of transparent material B1, a glass slab B0, and a second sheet of transparent material B2. The first sheet of transparent material B1 was attached to one side of the glazing panel B0 without a gap, while the second sheet of transparent material B2 was attached to the other, opposite side of the glazing panel B0 without a gap. The first sheet of transparent material B1 has a thickness t1The thickness of the glass strip B0 is t, and the thickness of the second transparent material sheet B2 is t2。
As shown in FIG. 4, the first sheet of transparent material B1 has a length L1 and a width w1The glass strip B0 has a length L and a width w, and the second transparent material sheet B2 has a length L2 and a width w2。
As shown in fig. 5, the light beam enters from one end surface (surface where thickness t and width w are located) of the glass slab and exits from the other end surface, and since the refractive index of the glass slab is higher than the refractive index of the first transparent material sheet B1 and the second transparent material sheet B2, the light beam propagates in the glass slab by total reflection, is reflected by the laser cavity mirror, and then passes back and forth through the glass slab, thereby generating laser light.
Claims (8)
1. The utility model provides a two-sided transparent material adheres to waveguide glass lath laser which characterized in that: the double-sided transparent material attached waveguide glass slab comprises a pumping light source, cooling liquid, a light-gathering cavity, a double-sided transparent material attached waveguide glass slab and a laser cavity mirror, wherein the pumping light source is arranged in the cooling liquid, two large sides of the double-sided transparent material attached waveguide glass slab are in contact with the cooling liquid, the light-gathering cavity gathers light emitted by the pumping light source on the double-sided transparent material attached waveguide glass slab, the light of laser wavelength passes through the double-sided transparent material attached waveguide glass slab and generates laser after oscillation among the laser cavity mirror, the double-sided transparent material attached waveguide glass slab is composed of a first transparent material thin plate, a second transparent material thin plate and a glass slab, and the first transparent material thin plate and the second transparent material thin plate are respectively attached to two opposite sides of the glass slab; the refractive indexes of the first transparent material thin plate and the second transparent material thin plate are smaller than that of the glass plate strip, and the laser beam is guaranteed to be transmitted in a total reflection mode in the glass plate strip.
2. A double-sided transparent material-attached waveguide glass slab laser as claimed in claim 1, wherein: and no air gap is reserved between the first transparent material thin plate, the second transparent material thin plate and the glass strip.
3. A double-sided transparent material-attached waveguide glass slab laser as claimed in claim 1, wherein: the materials used for the first transparent material sheet and the second transparent material sheet comprise one of YAG, sapphire, white gem, quartz glass or film.
4. A double-sided transparent material-attached waveguide glass slab laser as claimed in claim 1, wherein: the thermal conductivity of the first transparent material thin plate and the second transparent material thin plate is not less than that of the glass lath.
5. A double-sided transparent material-attached waveguide glass slab laser as claimed in claim 1, wherein: the glass lath is one of phosphate, silicate, germanate, aluminate, fluoride, fluorophosphate or phosphorus-fluorine glass.
6. The double-sided transparent material attached waveguide glass slab laser of claim 5, wherein: the glass lath is glass doped with rare earth ions or transition metal ions.
7. The double-sided transparent material attached waveguide glass slab laser of claim 6, wherein: the rare earth ions comprise one or more of neodymium, ytterbium, erbium, praseodymium, thulium or holmium ions.
8. The double-sided transparent material attached waveguide glass slab laser of claim 6, wherein: the transition metal ions include one or more of nickel, cobalt or titanium ions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010086652.7A CN111370980A (en) | 2020-02-11 | 2020-02-11 | Double-sided transparent material attached waveguide glass slab laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010086652.7A CN111370980A (en) | 2020-02-11 | 2020-02-11 | Double-sided transparent material attached waveguide glass slab laser |
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| CN111370980A true CN111370980A (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366505A (en) * | 2020-10-30 | 2021-02-12 | 中国科学院上海光学精密机械研究所 | Xenon lamp array type involute parabolic composite reflection cavity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891410Y (en) * | 2006-03-22 | 2007-04-18 | 中国科学院上海光学精密机械研究所 | Lens tube coupled solid slab laser |
| CN101202413A (en) * | 2007-11-22 | 2008-06-18 | 宁波大学 | Heat capacity type neodymium glass bar-shaped laser |
| US20110200292A1 (en) * | 2010-02-17 | 2011-08-18 | Raytheon Company | Glass core planar waveguide laser amplifier |
| CN102280802A (en) * | 2011-07-01 | 2011-12-14 | 宁波大学 | Glass laser with high repeat frequency |
| CN102882109A (en) * | 2011-07-14 | 2013-01-16 | 中国科学院理化技术研究所 | Laser head device for solid laser |
| CN103928826A (en) * | 2014-04-04 | 2014-07-16 | 中国科学院理化技术研究所 | Large-face pumping slab laser module capable of efficient cooling |
-
2020
- 2020-02-11 CN CN202010086652.7A patent/CN111370980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891410Y (en) * | 2006-03-22 | 2007-04-18 | 中国科学院上海光学精密机械研究所 | Lens tube coupled solid slab laser |
| CN101202413A (en) * | 2007-11-22 | 2008-06-18 | 宁波大学 | Heat capacity type neodymium glass bar-shaped laser |
| US20110200292A1 (en) * | 2010-02-17 | 2011-08-18 | Raytheon Company | Glass core planar waveguide laser amplifier |
| CN102280802A (en) * | 2011-07-01 | 2011-12-14 | 宁波大学 | Glass laser with high repeat frequency |
| CN102882109A (en) * | 2011-07-14 | 2013-01-16 | 中国科学院理化技术研究所 | Laser head device for solid laser |
| CN103928826A (en) * | 2014-04-04 | 2014-07-16 | 中国科学院理化技术研究所 | Large-face pumping slab laser module capable of efficient cooling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366505A (en) * | 2020-10-30 | 2021-02-12 | 中国科学院上海光学精密机械研究所 | Xenon lamp array type involute parabolic composite reflection cavity |
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