Nd<3+>-doped quartz glass capable of improving 900 nm fluorescence intensity and preparation method of Nd<3+>-doped quartz glass

A technology of quartz glass and fluorescence intensity, which is applied in the field of effectively improving the 900nm fluorescence intensity of Nd3+ doped quartz core rod glass, which can solve the problems of consumption of particle inversion number, complex laser structure, high nonlinear effect, etc., and achieve an increase in fluorescence branch ratio , high Nd doping concentration and the effect of optical quality

Active Publication Date: 2021-06-25
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-doped Nd in quartz glass 2 o 3 Or when Nd-Ge co-doped, although the fluorescence branch at 900nm is relatively high, but Nd 3+ The doping concentration in quartz glass is very low (below 1000ppm), low Nd 3+ Short optical fibers cannot achieve high power operation, while long optical fibers will lead to enhanced 1064nm laser gain, consume particle inversion numbers, and at the same time bring problems such as high nonlinear effects, low slope efficiency, and complex laser structures, which cannot meet the high power and high efficiency requirements

Method used

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  • Nd&lt;3+&gt;-doped quartz glass capable of improving 900 nm fluorescence intensity and preparation method of Nd&lt;3+&gt;-doped quartz glass
  • Nd&lt;3+&gt;-doped quartz glass capable of improving 900 nm fluorescence intensity and preparation method of Nd&lt;3+&gt;-doped quartz glass
  • Nd&lt;3+&gt;-doped quartz glass capable of improving 900 nm fluorescence intensity and preparation method of Nd&lt;3+&gt;-doped quartz glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Nd in this example 3+ Doped quartz glass formula: 0.3Nd 2 S 3 -5Al 2 o 3 -94.7SiO2 2 (mol%), the preparation method of this glass comprises the following steps:

[0028] The first step: 1) Weigh the raw material according to the selected mole percentage, SiO 2 Introduced by silicon alkoxide, Nd 3+ Take Nd 2 S 3 Introduced in the form of Al 2 o 3 Introduced by aluminum chloride hexahydrate;

[0029] 2) Calculate and weigh the raw materials according to the ratio of silicon alkoxide: water: organic solvent = 1:2:4, configure it into a mixed solution, then add aluminum chloride hexahydrate into the mixed solution, stir for 1-5 hours, Then add Nd 2 S 3 The suspension was stirred at room temperature for 1 to 10 hours to obtain Nd 3+ doped translucent SiO 2 Sol solution;

[0030] 3) SiO obtained in step 2) 2 Put the sol solution into a constant temperature water pot and heat and stir at 50°C until a gel block is formed;

[0031] 4) Place the gel block obtain...

Embodiment 2

[0037] Nd in this example 3+ Doped quartz glass formula: 0.2NdI 3 -2Al 2 o 3 -0.2P 2 o 5 -97.6SiO2 2 (mol%), the preparation method of this glass comprises the following steps:

[0038] 1) Weigh the raw material according to the selected mole percentage, SiO 2 Introduced by silicon alkoxide, Nd 3+ NdI 3 Introduced in the form of Al 2 o 3 Introduced by aluminum chloride hexahydrate; P 2 o 5 Introduced in the form of phosphoric acid.

[0039] 2) Calculate and weigh the raw materials according to the ratio of silicon alkoxide: water: organic solvent = 1:10:20, and configure it into a mixed solution, then add aluminum chloride hexahydrate and phosphoric acid into the mixed solution in turn, and stir for 1-20 minutes. After 5h, add NdI 3 Aqueous solution, continue stirring at room temperature for 1 to 10 hours to obtain Nd 3+ doped transparent SiO 2 Sol solution;

[0040] 3) SiO obtained in step 2) 2 Put the sol solution into a constant temperature water pot and h...

Embodiment 3

[0047] Nd in this example 3+ Doped quartz glass formula: 0.2NdBr 3 -1Al 2 o 3 -0.2P 2 o 5 -98.6SiO2 2 (mol%), the preparation method of this glass comprises the following steps:

[0048] 1) Weigh the raw material according to the selected mole percentage, SiO 2 Introduced by silicon alkoxide, Nd 3+ NdBr 3 Introduced in the form of Al 2 o 3 Introduced by aluminum chloride hexahydrate; P 2 o 5 Introduced in the form of phosphoric acid.

[0049] 2) Calculate and weigh the raw materials according to the ratio of silicon alkoxide: water: organic solvent = 1:5:10, and configure it into a mixed solution, then add aluminum chloride hexahydrate and phosphoric acid into the mixed solution in turn, and stir for 1~ After 5h, add NdBr 3 Aqueous solution, continue stirring at room temperature for 1 to 10 hours to obtain Nd 3+ doped transparent SiO 2 Sol solution;

[0050] 3) SiO obtained in step 2) 2 Put the sol solution into a constant temperature water pot and heat and s...

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Abstract

The invention relates to Nd<3+>-doped quartz glass for improving 900 nm fluorescence intensity, which comprises the following formula components: 0.5-5 mol% of Al2O3, 0-5 mol% of P2O5, 0.05-0.8 mol% of Nd<3+> introduced in the form of Nd2S3, NdBr3 or NdI3, and the balance of SiO2. A preparation method thereof is also provided. The Nd<3+>-doped quartz glass prepared by the method has high Nd doping concentration and optical quality, non-oxygen anions are retained to a certain extent, the fluorescence branching ratio of 900nm is greatly improved, and the fluorescence intensity of 900nm even reversal exceeds the spectral intensity of 1060nm.

Description

technical field [0001] The present invention relates to Nd 3+ The formulation and preparation method of doped quartz glass and optical fiber, especially a kind of effectively improving Nd 3 + Method of doping quartz core rod glass with 900nm fluorescence intensity. Background technique [0002] There is a light-transmitting window in the ocean similar to that in the atmosphere, that is, the attenuation of seawater on blue-green light in the wavelength range of 0.45-0.55 μm is much smaller than that of other light bands, and can be used for underwater target measurement and communication . Laser-to-submarine communication can realize communication with submarines with a diving depth of 300m. The communication speed is fast and efficient, and it does not affect the concealment and maneuverability of the submarine. It is an ideal means of communication to submarines. Due to the technical needs and strategic technical reserves of the U.S. Navy and U.S. Air Force, as of the m...

Claims

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Application Information

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IPC IPC(8): C03C4/12C03C6/06C03C13/04
CPCC03C4/12C03C1/00C03C13/046
Inventor 王世凯于春雷陈应刚胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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