CN114644456A - Phosphate laser glass - Google Patents
Phosphate laser glass Download PDFInfo
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- CN114644456A CN114644456A CN202210226418.9A CN202210226418A CN114644456A CN 114644456 A CN114644456 A CN 114644456A CN 202210226418 A CN202210226418 A CN 202210226418A CN 114644456 A CN114644456 A CN 114644456A
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- glass
- phosphate
- laser
- neodymium
- laser glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/0071—Compositions for glass with special properties for laserable glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
- C03C3/17—Silica-free oxide glass compositions containing phosphorus containing aluminium or beryllium
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides phosphate laser glass, which belongs to the technical field of materials2O3And Nd2O3Is less than 1: 40. The phosphate laser neodymium glass provided by the invention has stronger absorption in the wave bands of 400nm-500nm and 600nm-700nm, has excellent gain characteristic under xenon lamp pumping, and can be suitable for high peak power lasers, high average power lasers and the like of xenon lamp pumping.
Description
Technical Field
The invention relates to the technical field of materials, in particular to phosphate laser glass.
Background
The phosphate glass is a laser glass medium widely used in large-scale laser devices due to the moderate phonon energy, high solubility to rare earth ions, excellent spectral performance of the rare earth ions in phosphate matrix glass, high solubility to platinum ions and small nonlinear coefficient. Neodymium ion four-level systems are often used as the active ions for laser gain media. Phosphate laser neodymium glass is phosphate glass taking neodymium ions as active ions, and is widely applied to various laser systems as a gain medium. The earliest research on phosphate laser neodymium glass started in the 70 s of the 20 th century, and various phosphate laser neodymium glass materials such as N31 type and N41 type, which have been researched by Shanghai optical precision machinery of Chinese academy of sciences, have been applied to various lasers.
Phosphate laser neodymium glass is usually pumped by a xenon lamp, the emission spectrum of the xenon lamp is a wide-bandwidth spectrum similar to sunlight, rare earth ions are absorbed from absorption transition of electrons in an f layer from an energy ground state to an excited state, the absorption spectrum generally shows narrow-band absorption due to the shielding effect of outer layer electrons, and neodymium ions are weakly absorbed in 400nm-500nm and 600nm-700nm wave bands, so that the energy of the xenon lamp in the two wave bands cannot be absorbed by the neodymium glass, the energy waste of the xenon lamp is caused on one hand, and the higher gain coefficient is not favorably obtained on the other hand.
Disclosure of Invention
The invention aims to provide phosphate laser glass which has strong absorption in 400-500 nm and 600-700 nm wave bands, has excellent gain characteristic under xenon lamp pumping, and can be suitable for a high peak power laser, a high average power laser and the like of the xenon lamp pumping.
The technical scheme of the invention is realized as follows:
the invention provides phosphate laser glass, wherein the laser glass matrix is phosphate glass, neodymium ions and trivalent chromium ions are simultaneously contained in the glass, and Cr is2O3And Nd2O3Is less than 1: 40.
As a further improvement of the invention, the Cr is2O3And Nd2O3Is less than 1: 100.
According to the invention, on one hand, the absorption of the phosphate laser neodymium glass to xenon light is increased by introducing chromium ions into the phosphate laser neodymium glass, and on the other hand, the energy transfer probability of the neodymium ions to the chromium ions is reduced by controlling the doping concentration of the chromium ions, so that the Cr ions2O3And Nd2O3Less than 1:40, preferably Cr2O3And Nd2O3Is less than 1: 100.
As a further improvement of the invention, the catalyst is prepared from the following raw materials in percentage by mole:
P2O5 45-70％；
Al2O3 5-9％；
R2o10-30%, wherein R is one or more of Li, Na and K;
MO 6-30%, wherein M is one or more of Mg and Ba;
Re2O30.05-2%, wherein Re is one of Nd, Y and La, and Nd2O3The content is not less than 0.01 percent;
B2O3+SiO2 0-12％；
Nb2O5 0.2-1.5％；
Sb2O3 0-1％；
Cr2O3 0.001％-0.1％。
P2O5is a glass former, too low the glass forming ability is poor, too high the glass chemical stability is poor, the invention P2O5In the range of 45-70%; al (Al)2O3If the content is too low, the chemical stability of the glass is poor, and if the content is too high, the spectral characteristics are not good, and the Al of the invention2O3The range is 5-9%; alkali metal oxide R2O is the external body of the glass network, the content of the invention is 10-30%, wherein R is one or more of Li, Na and K; the alkaline earth metal oxide MO is a network outer body, and the content of the alkaline earth metal oxide MO is 6-30 percentWherein M is one or more of Mg and Ba; rare earth oxide Re2O3Can be used for adjusting the chemical stability and the refractive index of the glass, and the content of the glass is 0.05-2 percent, wherein Re is one of Nd, Y and La, and Nd is used simultaneously2O3The content of the oxide is not less than 0.01 percent for activating ions; b is2O3And SiO2The glass is a network former and can improve the anti-crystallization property of phosphate glass, and the total content of the phosphate glass and the phosphate glass is 0-12 percent; nb2O5The refractive index of the glass can be adjusted, and the content of the glass is 0.2-1.5%; sb2O3The glass clarifier is 0-1 percent; cr2O3The content of the xenon-light absorbing glass is 0.001-0.2%, and the xenon-light absorbing glass is important in the invention.
As a further improvement of the invention, the catalyst is prepared from the following raw materials in percentage by mole:
P2O5 58.5％；
Al2O3 7％；
K2O 15％；
Na2O 7.5％；
MgO 10.5％；
Nd2O3 0.49％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.01％。
as a further improvement of the invention, the catalyst is prepared from the following raw materials in percentage by mole:
P2O5 58.5％；
Al2O3 7％；
BaO 10％；
K2O 11.3％；
Na2O 10.5％；
Nd2O3 1.6935％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.0065％。
as a further improvement of the invention, the catalyst is prepared from the following raw materials in percentage by mole:
P2O5 58.5％；
Al2O3 7％；
BaO 10..5％；
K2O 11.3％；
Na2O 10％；
Nd2O3 1.6976％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.0024％。
as a further improvement of the invention, the phosphate laser glass has a small signal gain coefficient of 3.6-5.9%/cm.
Because the xenon lamp light can simultaneously excite neodymium ions and chromium ions in the xenon lamp pumping process, energy transfer between the neodymium ions and the chromium ions is inevitable in the laser operation and laser amplification processes. The trivalent chromium ion absorbs the xenon lamp light and then transfers energy to the neodymium ion, which is favorable for laser operation and laser amplification. The energy transfer of neodymium ions to chromium ions is detrimental to laser operation and amplification.
The invention has the following beneficial effects: the phosphate laser neodymium glass provided by the invention has stronger absorption in the wave bands of 400nm-500nm and 600nm-700nm, has excellent gain characteristic under xenon lamp pumping, and can be suitable for high peak power lasers, high average power lasers and the like of xenon lamp pumping.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a graph comparing the absorption spectra of phosphate laser glass and neodymium-doped phosphate glass of example 1;
FIG. 2 is a graph comparing the excitation spectra of the phosphate laser glass and neodymium-doped phosphate glass of example 1 (monitor 1053 nm);
FIG. 3 is a comparison of fluorescence spectra of the phosphate laser glass and the neodymium-doped phosphate glass of example 1 under 655nm wavelength excitation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The ranges of the components of the glass composition of the present invention are described below. In the present specification, the content and total amount of each component are expressed as a mole percentage (mol%) of an oxide unless otherwise specified.
Table 1 lists the specific ingredients of example 1. Table 2 shows the working
The laser amplification factor of the phosphate laser neodymium glass under the xenon lamp pumping.
All glasses were made using laser grade ingredients and melted under stirring using a platinum stirrer in a dry oxygen environment to achieve better homogeneity. All glasses were cast into molds and appropriately annealed to remove stress when the liquid was cooled to an amorphous state. The resulting glass mat is shaped into a form desired for use with tools that provide various glass properties.
TABLE 1
| Component (mol%) | Example 1 | Comparative example 1 | Comparative example 2 |
| P2O5 | 58.5 | 58.5 | 58.5 |
| Al2O3 | 7 | 7 | 7 |
| MgO | 10.5 | 10.5 | 10.5 |
| K2O | 15 | 15 | 15 |
| Na2O | 7.5 | 7.5 | 7.5 |
| Nb2O5 | 0.5 | 0.5 | 0.5 |
| Sb2O3 | 0.5 | 0.5 | 0.5 |
| Nd2O3 | 0.49 | 0.5 | 0.47 |
| Cr2O3 | 0.01 | 0 | 0.03 |
| Cr2O3/Nd2O3 | 1/50 | 0 | 3/50 |
TABLE 2
FIG. 1 is a graph comparing the absorption spectra of the phosphate laser glass and the neodymium-doped phosphate glass of example 1, and it can be seen that: compared with the traditional neodymium-doped laser glass, the chromium-neodymium co-doped laser glass has stronger absorption in the wave bands of 400-500 nm and 600-700 nm.
FIG. 2 is a graph showing the comparison of the excitation spectra of the phosphate laser glass and neodymium-doped phosphate glass in example 1 (1053 nm was monitored), from which: when 1053nm fluorescence is monitored, compared with the traditional neodymium-doped laser glass, the chromium-neodymium co-doped laser glass can absorb more photons with 400-500 nm and 600-700 nm wave bands and convert the photons into 1053nm fluorescence.
FIG. 3 is a comparison of fluorescence spectra of the phosphate laser glass and the neodymium-doped phosphate glass of example 1 under 655nm excitation, from which it can be seen that: the chromium ions in the chromium-neodymium co-doped laser glass can absorb 655nm photons and transfer energy to the neodymium ions, so that the 1053nm fluorescence intensity of the neodymium-doped laser glass under the excitation of 655nm is enhanced.
Table 3 lists the specific ingredients of examples 2 and 3. Table 4 lists the small signal gain coefficient of the processed 40mm thick edge-clad phosphate laser neodymium glass pumped by a xenon lamp.
All glasses were made using laser grade composition and melted under stirring in a dry oxygen environment using a platinum stirrer to achieve better homogeneity. All glasses were cast into molds and appropriately annealed to remove stress when the liquid was cooled to an amorphous state. The resulting glass mat is shaped into a form desired for use with tools that provide various glass properties.
TABLE 3
TABLE 4
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The phosphate laser glass is characterized in that the laser glass matrix is phosphate glass, and the glass simultaneously contains phosphate glassWith neodymium ions and trivalent chromium ions, and Cr2O3And Nd2O3Is less than 1: 40.
2. The phosphate laser glass according to claim 1, wherein the Cr is present in the glass2O3And Nd2O3Is less than 1: 100.
3. The phosphate laser glass according to claim 1, prepared from raw materials consisting of, in mole percent:
P2O5 45-70％；
Al2O3 5-9％；
R210-30% of O, wherein R is one or more of Li, Na and K;
MO 6-30%, wherein M is one or more of Mg and Ba;
Re2O30.05-2%, wherein Re is one of Nd, Y and La, and Nd2O3The content is not less than 0.01 percent;
B2O3+SiO2 0-12％；
Nb2O5 0.2-1.5％；
Sb2O3 0-1％；
Cr2O3 0.001％-0.1％。
4. the phosphate laser glass according to claim 1, prepared from raw materials consisting of, in mole percent:
P2O5 58.5％；
Al2O3 7％；
K2O 15％；
Na2O 7.5％；
MgO 10.5％；
Nd2O3 0.49％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.01％。
5. the phosphate laser glass according to claim 1, prepared from raw materials consisting of, in mole percent:
P2O5 58.5％；
Al2O3 7％；
BaO 10％；
K2O 11.3％；
Na2O 10.5％；
Nd2O3 1.6935％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.0065％。
6. the phosphate laser glass according to claim 1, prepared from raw materials consisting of, in mole percent:
P2O5 58.5％；
Al2O3 7％；
BaO 10％；
K2O 11.3％；
Na2O 10.5％；
Nd2O3 1.6976％；
Nb2O5 0.5％；
Sb2O3 0.5％；
Cr2O3 0.0024％。
7. the phosphate laser glass according to any one of claims 1 to 6, wherein the phosphate laser glass has a small signal gain coefficient of 3.6 to 5.9%/cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226418.9A CN114644456A (en) | 2022-03-09 | 2022-03-09 | Phosphate laser glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226418.9A CN114644456A (en) | 2022-03-09 | 2022-03-09 | Phosphate laser glass |
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| CN114644456A true CN114644456A (en) | 2022-06-21 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621894A (en) * | 2003-11-27 | 2005-06-01 | 中国科学院福建物质结构研究所 | Broad band tunable laser crystal chromium doped lithium niobate |
| CN101882751A (en) * | 2009-12-28 | 2010-11-10 | 刘文祥 | Nanometer laser |
| CN102515512A (en) * | 2010-08-06 | 2012-06-27 | 肖特公司 | Broadening of rare earth ion emission bandwidth in phosphate based laser glasses |
| CN103848569A (en) * | 2012-11-28 | 2014-06-11 | 肖特公司 | Ultra-broad bandwidth laser glasses for short-pulse and high peak power lasers |
| CN104711677A (en) * | 2015-02-13 | 2015-06-17 | 山东大学 | Self Q-adjusting garnet crystal, self Q-adjusting device made of self Q-adjusting garnet crystal and self Q-adjusting pulsed laser made of self Q-adjusting garnet crystal |
| CN104926114A (en) * | 2015-06-18 | 2015-09-23 | 成都光明光电有限责任公司 | Phosphate laser neodymium glass |
| CN106746611A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院上海光学精密机械研究所 | With the larger phosphate laser neodymium glass for bearing hot light path coefficient and high-gain |
| CN109081579A (en) * | 2018-09-17 | 2018-12-25 | 成都光明光电股份有限公司 | phosphate laser neodymium glass |
-
2022
- 2022-03-09 CN CN202210226418.9A patent/CN114644456A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621894A (en) * | 2003-11-27 | 2005-06-01 | 中国科学院福建物质结构研究所 | Broad band tunable laser crystal chromium doped lithium niobate |
| CN101882751A (en) * | 2009-12-28 | 2010-11-10 | 刘文祥 | Nanometer laser |
| CN102515512A (en) * | 2010-08-06 | 2012-06-27 | 肖特公司 | Broadening of rare earth ion emission bandwidth in phosphate based laser glasses |
| CN103848569A (en) * | 2012-11-28 | 2014-06-11 | 肖特公司 | Ultra-broad bandwidth laser glasses for short-pulse and high peak power lasers |
| CN104711677A (en) * | 2015-02-13 | 2015-06-17 | 山东大学 | Self Q-adjusting garnet crystal, self Q-adjusting device made of self Q-adjusting garnet crystal and self Q-adjusting pulsed laser made of self Q-adjusting garnet crystal |
| CN104926114A (en) * | 2015-06-18 | 2015-09-23 | 成都光明光电有限责任公司 | Phosphate laser neodymium glass |
| CN106746611A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院上海光学精密机械研究所 | With the larger phosphate laser neodymium glass for bearing hot light path coefficient and high-gain |
| CN109081579A (en) * | 2018-09-17 | 2018-12-25 | 成都光明光电股份有限公司 | phosphate laser neodymium glass |
Non-Patent Citations (1)
| Title |
|---|
| 胡丽丽等著: "《激光玻璃及应用》", 31 December 2019 * |
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