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Application of a kind of mesoporous carbon sphere in making saturable absorber

A saturable absorption, mesoporous carbon technology, used in laser parts, electrical components, phonon exciters, etc.

Active Publication Date: 2021-01-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the saturable absorption properties of mesoporous carbon spheres and their application in ultrafast lasers have not been reported. In view of the fact that ultrafast fiber lasers are important in the fields of material preparation, optical fiber sensing, medicine, military and basic research Therefore, finding a material with saturable absorption properties is one of the ideal solutions for realizing new ultrafast fiber lasers

Method used

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  • Application of a kind of mesoporous carbon sphere in making saturable absorber
  • Application of a kind of mesoporous carbon sphere in making saturable absorber
  • Application of a kind of mesoporous carbon sphere in making saturable absorber

Examples

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Effect test

Embodiment 1

[0030] Example 1: A saturable absorber prepared by mixing mesoporous carbon spheres and a film-forming agent—sodium carboxymethylcellulose (NaCMC) and used for mode-locked laser output at 1 μm;

[0031] 1. Sample preparation process

[0032]The mesoporous carbon spheres are synthesized by the "silica template method", that is, soluble phenolic resin is used as a precursor, tetraethyl orthosilicate (TEOS) is used as a precursor, and hexadecyl trimethyl chloride Amine (CTAC) is the template; first, mix 10mL (25wt%) ammonia water, 4-8mL ethanol aqueous solution, 1.04g (25wt%) CTAC solution and 19mL deionized water in a beaker, and keep stirring for 30 minutes , then add 0.2g of resorcinol to the solution, continue stirring for 30 minutes, inject 0.72mL of TEOS and 0.28mL of formaldehyde solution into the above solution, and continue stirring at 30°C for 24 hours; The solid product was obtained by machine, and dried naturally at 80°C; the dried solid product was fed with nitrogen...

Embodiment 2

[0037] Example 2: A saturable absorber prepared by mixing mesoporous carbon spheres and a film-forming agent—sodium carboxymethylcellulose (NaCMC) and used for Q-switched laser output at 1.56 μm band;

[0038] 1. Sample preparation process

[0039] The mesoporous carbon spheres are synthesized by the "silica template method", that is, soluble phenolic resin is used as a precursor, tetraethyl orthosilicate (TEOS) is used as a precursor, and hexadecyl trimethyl chloride Amine (CTAC) is the template; first, mix 10mL (25wt%) ammonia water, 4-8mL ethanol aqueous solution, 1.04g (25wt%) CTAC solution and 19mL deionized water in a beaker, and keep stirring for 30 minutes , then add 0.2g of resorcinol to the solution, continue stirring for 30 minutes, inject 0.72mL of TEOS and 0.28mL of formaldehyde solution into the above solution, and continue stirring at 30°C for 24 hours; The solid product was obtained by machine, and dried naturally at 80°C; the dried solid product was fed with ...

Embodiment 3

[0044] Example 3: A saturable absorber mixed with mesoporous carbon spheres and a film-forming agent—sodium carboxymethylcellulose (NaCMC) and used for Q-switched laser output at 2 μm band;

[0045] 1. Sample preparation process

[0046] The mesoporous carbon spheres are synthesized by the "silica template method", that is, soluble phenolic resin is used as a precursor, tetraethyl orthosilicate (TEOS) is used as a precursor, and hexadecyl trimethyl chloride Amine (CTAC) is the template; first, mix 10mL (25wt%) ammonia water, 4-8mL ethanol aqueous solution, 1.04g (25wt%) CTAC solution and 19mL deionized water in a beaker, and keep stirring for 30 minutes , then add 0.2g of resorcinol to the solution, continue stirring for 30 minutes, inject 0.72mL of TEOS and 0.28mL of formaldehyde solution into the above solution, and continue stirring at 30°C for 24 hours; The solid product was obtained by machine, and dried naturally at 80°C; the dried solid product was fed with nitrogen in...

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Abstract

The invention provides an application of mesoporous carbon spheres in preparation of a saturable absorber. By virtue of the saturable absorption characteristic of the mesoporous carbon spheres, the saturable absorber is prepared to be applied to a laser; the saturable absorber is a mesoporous carbon sphere-based saturable absorber used for optical fiber laser Q switching or mode locking; the saturable absorber comprises a saturable absorber body formed by mesoporous carbon spheres and a film forming agent in a combination manner, and a saturable absorber body based on mesoporous carbon sphere-coated tapering optical fibers; and the saturable absorber bodies are placed in an optical fiber laser cavity, so that near infrared waveband pulse laser output can be realized. By virtue of the application, the types of the saturable absorber bodies are expanded, and the saturable absorber bodies can be widely applied to the pulse laser of the near infrared waveband.

Description

technical field [0001] The invention belongs to the technical field of ultrafast lasers, and in particular relates to the application of mesoporous carbon spheres in making saturable absorbers. Background technique [0002] Ultrafast laser technology is a new branch of discipline developed after the invention of laser. Ultrafast laser has the characteristics of narrow pulse width and high peak power. It is an important means to study the microscopic world and reveal new ultrafast processes. It is widely used in spectrum detection, optical communication, laser micromachining and other fields. Ultrafast lasers have undergone development from dye lasers to solid-state lasers, opening up a new era of scientific and industrial applications. However, its high price, bulky size, and poor stability to the environment hinder the application of ultrafast lasers. Therefore, exploring new mechanisms, new materials, and developing a new generation of ultrafast lasers have become popula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/11H01S3/098
CPCH01S3/1115
Inventor 秦冠仕王方秦伟平乔振安吴长锋
Owner JILIN UNIV