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Dy<3+>-doped phosphate glass for outputting yellow laser, optical fiber and preparation method of Dy<3+>-doped phosphate glass

A phosphate glass and laser technology, applied in glass manufacturing equipment, glass fiber products, clad optical fiber, etc., can solve the problems of poor yellow light gain performance, low output power and efficiency, complicated preparation process, etc., to reduce particle size Difficulty in number reversal, high degree of asymmetry, high power effect

Inactive Publication Date: 2021-07-09
SOUTH CHINA UNIV OF TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] For the current Dy 3+ Although doped yellow-light fiber lasers can achieve direct output of yellow-light lasers, the output power and efficiency are generally low due to poor yellow-light gain performance; and because they are limited to fluoride glass fibers, there are low damage thresholds, The preparation process is complex and the toughness is poor, which seriously affects the practicability. The purpose of the present invention is to provide a high-gain Dy 3+ Doped phosphate glass fiber as Dy 3+ The gain fiber of the doped fiber yellow laser, in which the Dy 3+ Doped yellow fiber laser has the advantages of direct yellow laser output, simple structure, and high integration, while taking advantage of the advantages of high quenching threshold, high phonon energy, and high asymmetry of phosphate glass, plus doped Into a large amount of K + Isolation of Dy as a low-field modifier 3+ , co-doped Tb 3+ 、Eu 3+ Further quenching lower level, co-doped La 3+ Improve Dy 3+ Measures such as decentralization improve Dy as much as possible 3+ The yellow light gain performance of doped gain fiber is expected to greatly improve the Dy 3+ Output Power and Efficiency of Doped Yellow Fiber Laser

Method used

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  • Dy&lt;3+&gt;-doped phosphate glass for outputting yellow laser, optical fiber and preparation method of Dy&lt;3+&gt;-doped phosphate glass
  • Dy&lt;3+&gt;-doped phosphate glass for outputting yellow laser, optical fiber and preparation method of Dy&lt;3+&gt;-doped phosphate glass
  • Dy&lt;3+&gt;-doped phosphate glass for outputting yellow laser, optical fiber and preparation method of Dy&lt;3+&gt;-doped phosphate glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Dy 3+ Melting of doped phosphate bulk core glass: Melting bulk Dy by melting-annealing method 3+ Doped phosphate bulk core glass. The ratio of the oxide raw materials of the glass is as follows (mol%):

[0050] P 2 o 5 :65%

[0051] K 2 O: 13%

[0052] BaO: 12%

[0053] Al 2 o 3 :5%

[0054] La 2 o 3 :4%

[0055] Dy 2 o 3 :1%

[0056] Accurately weigh P according to the above ratio 2 o 5 、K 2 CO 3 、BaCO 3 、Al 2 o 3 , La 2 o 3 and Dy 2 o 3 Wait for 500g of the corresponding raw materials of each oxide, put them in a mortar and grind them for 30 minutes to mix them evenly, and then melt them in a corundum crucible at 1250°C for 2 hours including steps of water removal, stirring and clarification. Then pour it into an iron mold preheated to 500°C for molding, and then quickly put it into a muffle furnace for precise gradient annealing at 500°C to obtain Dy 3+ Doped phosphate bulk core glass. The absorption cross section, emission spectrum a...

Embodiment 2

[0071] Tb 3+ and Eu 3+ Due to having with Dy 3+ lower level of yellow emission 6 h 13 / 2 A relatively matched energy level can effectively quench Dy by means of energy transfer 3+ lower level of yellow emission 6 h 13 / 2 , which reduces the Dy 3+ The difficulty of realizing the inversion of the number of particles is conducive to improving the emission power and slope efficiency of the yellow laser while reducing the emission threshold. The embodiment is basically the same as Example 1, except that 0.5 mole percent Tb is added to the core glass component 2 o 3 or Eu 2 o 3 , while deducting the same amount of P 2 o 5 . This method can be used to prepare Dy for outputting yellow laser light 3+ / Tb 3+ Co-blended or Dy 3+ / Eu 3+ Co-doped phosphate glass fiber.

[0072] Figure 4 Dy in this example 3+ / Tb 3+ Co-doped phosphate glass fiber and Dy in embodiment 1 3+ Comparison of the emission spectra of doped phosphate glass fiber, the emission peaks are marked wi...

Embodiment 3

[0074] (1) Dy 3+ Melting of doped phosphate bulk core glass: Melting bulk Dy by melting-annealing method 3+ Doped phosphate bulk core glass. The ratio of the oxide raw materials of the glass is as follows (mol%):

[0075] P 2 o 5 :70%

[0076] K 2 O: 10%

[0077] BaO: 10%

[0078] Al 2 o 3 :4%

[0079] La 2 o 3 :5.5%

[0080] Dy 2 o 3 :0.5%

[0081] Accurately weigh P according to the above ratio 2 o 5 、K 2 CO 3 、BaCO 3 、Al 2 o 3 , La 2 o 3 and Dy 2 o 3 Wait for 500g of the corresponding raw materials of each oxide, put them in a mortar and grind them for 30 minutes to mix them evenly, and then melt them in a corundum crucible at 1250°C for 2 hours including steps of water removal, stirring and clarification. Then pour it into an iron mold preheated to 500°C for molding, and then quickly put it into a muffle furnace for precise gradient annealing at 500°C to obtain Dy 3+ Doped phosphate bulk core glass.

[0082] (2) Melting of phosphate bulk claddi...

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Abstract

The invention discloses Dy<3+>-doped phosphate glass for outputting yellow laser, an optical fiber and a preparation method of the Dy<3+>-doped phosphate glass; the Dy<3+>-doped phosphate glass comprises the components in molar percentage: 60%-70% of P2O5, 10%-15% of K2O, 10%-15% of BaO, 2%-5% of Al2O3, 3%-5.5% of La2O3 and 0.5%-3% of Dy2O3, wherein the total molar percentage is 100%. The advantages of the phosphate glass are utilized, a large amount of K<+> is doped as a low-field-intensity modifier to isolate Dy<3+>, La<3+> is co-doped to improve the dispersity of Dy<3+> and improve the yellow light gain performance, and the output power and efficiency are greatly improved. And the phosphate glass optical fiber is high in damage threshold, simple in preparation process and good in toughness, an efficient, stable and simple-structure Dy<3+>-doped yellow light optical fiber laser can be manufactured, and high-power, efficient and stable optical fiber yellow light laser direct output is achieved.

Description

technical field [0001] The invention belongs to the field of optical fiber technology, and in particular relates to a Dy 3+ Doped phosphate glass, optical fiber and method of making the same. Background technique [0002] The yellow laser with a wavelength range of about 550-620nm has important and extensive applications in astronomy, physics, biomedicine and military fields. For example, the yellow laser with 589nm can cause strong resonance fluorescence of sodium atoms in the atmospheric ionosphere Scattering, the adaptive optics technology used in astronomical telescopes can correct the imaging blur caused by atmospheric turbulence; yellow lasers with 561nm, 580nm and 592nm and similar wavelengths can effectively excite various yellow orange and red fluorescent dyes and proteins. It has become a commonly used device on flow cytometers; 556nm and 578nm yellow lasers can be used for secondary cooling, spin polarization and clock transition of ytterbium atomic optical latti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/00C03C3/17C03B37/012C03B37/027G02B6/02
CPCC03C4/0071C03C3/17C03B37/01211C03B37/027G02B6/02342G02B6/02371C03B2203/32
Inventor 陈东丹田树杭杨中民张勤远唐国武
Owner SOUTH CHINA UNIV OF TECH
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