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Rare earth doping (lu a sc b the y c ) 2 o 3 (a+b+c=1) single crystal optical fiber and its preparation method and application

A technology of rare earth doping and optical fiber, which is applied in the field of crystals and devices, can solve problems such as crystal cracking and increase crystal thermal stress, and achieve the effect of increasing the width, not being polluted by the crucible, and increasing the disordered structure

Active Publication Date: 2022-04-26
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this growth method also has certain disadvantages. Since there is no crucible and afterheating, there is a steeper thermal gradient at the growth interface, which greatly increases the thermal stress of the crystal and easily causes the problem of crystal cracking.

Method used

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  • Rare earth doping (lu <sub>a</sub> sc <sub>b</sub> the y <sub>c</sub> ) <sub>2</sub> o <sub>3</sub> (a+b+c=1) single crystal optical fiber and its preparation method and application
  • Rare earth doping (lu <sub>a</sub> sc <sub>b</sub> the y <sub>c</sub> ) <sub>2</sub> o <sub>3</sub> (a+b+c=1) single crystal optical fiber and its preparation method and application
  • Rare earth doping (lu <sub>a</sub> sc <sub>b</sub> the y <sub>c</sub> ) <sub>2</sub> o <sub>3</sub> (a+b+c=1) single crystal optical fiber and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A rare earth doping (Lu a sc b Y c ) 2 o 3 (a+b+c=1, and a, b, c≠0) single crystal fiber, the preparation method is as follows:

[0060] (1) Preparation and treatment of source rod and seed crystal

[0061] Source rods and seed crystals are prepared from the following molar percentages: 30% Lu 2 o 3 ,, 30% Sc 2 o 3 , 29.5%Y 2 o 3 , 10% Er 2 o 3 , 0.5% Pr 2 o 3 ;

[0062] During the preparation of source rods and seed crystals, the sintering temperature is 1500°C and the sintering time is 36h;

[0063] The prepared source rods and seed crystals have a diameter of 2 mm and a length of 60 mm.

[0064] Fix the prepared source rod and seed crystal on the Al with grooves with high temperature ceramic glue. 2 o 3 Dry at room temperature for 6 h.

[0065] (2) Crystal growth

[0066] The laser heating pedestal (LHPG) method is used for growth, and the specific steps are as follows:

[0067] a Clean the laser furnace cavity and laser reflector, and modulate t...

Embodiment 2

[0072] A rare earth doping (Lu a sc b Y c ) 2 o 3 (a+b+c=1, and a, b, c≠0) single crystal fiber, the preparation method is as follows:

[0073] (1) Preparation and treatment of source rod and seed crystal

[0074] Source rods and seed crystals are prepared from the following molar percentages: 50% Lu 2 o 3 ,, 30% Sc 2 o 3 , 13.1%Y 2 o 3 , 5%Yb 2 o 3 , 1.5% Ho 2 o 3 and 0.4% Pr 2 o 3 ;

[0075] During the preparation of source rods and seed crystals, the sintering temperature is 1500°C and the sintering time is 36h;

[0076] The prepared source rods and seed crystals have a diameter of 2 mm and a length of 60 mm.

[0077] Fix the prepared source rod and seed crystal on the Al with grooves with high temperature ceramic glue. 2 o 3 Dry at room temperature for 6 h.

[0078] (2) Crystal growth

[0079] The laser heating pedestal (LHPG) method is used for growth, and the specific steps are as follows:

[0080] a Clean the laser furnace cavity and laser reflect...

Embodiment 3

[0085] A rare earth doping (Lu a sc b Y c ) 2 o 3 (a+b+c=1, and a, b, c≠0)) single crystal optical fiber, the preparation method is as follows:

[0086] (1) Preparation and treatment of source rod and seed crystal

[0087] Source rods and seed crystals are prepared from the following molar percentages: 25% Lu 2 o 3 ,, 25% Sc 2 o 3 , 36.5%Y 2 o 3 , 12% Er 2 o 3 , 1.5% Nd 2 o 3 ;

[0088] During the preparation of source rods and seed crystals, the sintering temperature is 1500°C and the sintering time is 36h;

[0089] The prepared source rods and seed crystals have a diameter of 2 mm and a length of 60 mm.

[0090] Fix the prepared source rod and seed crystal on the Al with grooves with high temperature ceramic glue. 2 o 3 Dry at room temperature for 6 h.

[0091] (2) Crystal growth

[0092] The laser heating pedestal (LHPG) method is used for growth, and the specific steps are as follows:

[0093] a Clean the laser furnace cavity and laser reflector, and m...

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Abstract

The present invention provides a rare earth doped (Lu a Sc b Y c ) 2 O 3 (a+b+c=1) single crystal fiber and its preparation method and application. The chemical composition of the optical fiber of the present invention is rare earth doped (Lu a Sc b Y c ) 2 O 3 (a+b+c=1), the rare earths are Yb, Er, Nd, Ho, Tm and Pr elements. The present invention adopts the laser heating pedestal (LHPG) method to utilize Lu 2 O 3 , Sc 2 O 3 and Y 2 O 3 The three substances create infinite mutual solubility (Lu a Sc b Y c ) 2 O 3 (a+b+c=1) crystal, which broadens the types of sesquioxides; the obtained fiber has uniform diameter, large size, smooth surface, transparent crystal, uniform distribution of doping ions, and high crystal quality; High thermal conductivity, high stability, anti-oxidation, low phonon energy and disordered structure; the obtained single crystal fiber is a brand-new laser gain matrix with excellent performance.

Description

technical field [0001] The invention relates to a novel sesquioxide single crystal optical fiber and its preparation method and application, in particular to rare earth doping (Lu a sc b Y c ) 2 o 3 The (a+b+c=1) single crystal optical fiber and its preparation method and application belong to the technical field of crystals and devices. Background technique [0002] Laser has the characteristics of good coherence, monochromaticity, directivity, and high energy density, which makes it rise rapidly in the fields of national defense, communication, aerospace, and optoelectronic information industry. With the development of society and the needs of technology, the demand for high-power, high-energy, short-pulse lasers is more urgent, which requires us to continue to explore more superior laser crystals to meet the needs of major national projects, laser weapons and military equipment development needs. [0003] Sesquioxide (Lu 2 o 3 、Sc 2 o 3 , Y 2 o 3 etc.) crystal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/22C30B33/02C30B15/00G02B1/02H01S3/16
CPCC30B29/22C30B15/00C30B33/02G02B1/02H01S3/1603H01S3/163
Inventor 贾志泰张娜陶绪堂张健尹雨晴王涛
Owner SHANDONG UNIV
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