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Hydrazone organic matter-based mode-locked pulse light source and preparation method thereof

A mode-locked pulse and organic technology, applied in the field of lasers, can solve the problems of instability, easy oxidation, and high investment costs, and achieve the effects of stable output, improved service life, and reduced investment costs.

Active Publication Date: 2020-04-28
SHAANXI NORMAL UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a mode-locked pulse light source based on hydrazone organic matter and a preparation method to solve the disadvantages of complicated manufacturing process, instability, and easy oxidation in the prior art. And the problem of short service life and high investment cost of ultrashort pulse fiber laser in the prior art

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  • Hydrazone organic matter-based mode-locked pulse light source and preparation method thereof

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[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments This is an embodiment of the metal plate of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by thos...

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Abstract

The invention relates to a hydrazone organic matter-based mode-locked pulse light source and a preparation method thereof, and mainly relates to the technical field of lasers. A 1-(anthracene-9-methylene)-2-(pentafluorophenyl) hydrazine organic matter A is set as a saturable absorption material. The laser intensity before mode locking changes randomly, and a saturable absorber can be transmitted out when the randomly generated light intensity is large enough to oscillate in a laser cavity. The process is repeated continuously, so that the high-intensity laser is amplified, and the low-intensity light is absorbed. After multiple times of oscillation, the pulse is gradually compressed, so that the width of the output pulse is reduced, and a traditional soliton with the pulse width of only 1.13 ps is obtained. And the organic matter can exist in the air for a long time, so that the laser outputs stably, the service life of the ultrashort pulse fiber laser is prolonged, and the investmentcost is reduced.

Description

Technical field [0001] The invention relates to the technical field of lasers, and mainly introduces a mode-locked pulsed light source based on hydrazone organics and a preparation method. Background technique [0002] In recent years, the application of ultrashort pulse fiber lasers in fiber communications, material processing, biomedicine, spectroscopy, nonlinear optics, optical frequency metrology, etc. has attracted widespread attention. Most ultrashort pulse lasers are realized by processing continuous waves into ultrashort pulses by nonlinear optical modulation elements such as saturable absorbers (SA). In this way, the selection of SA is particularly important. Over the past few decades, various SAs have been applied to the generation of ultrashort pulses, such as graphene, black phosphine, carbon nanotubes (CNTs), transition metal sulfides (TMDs), saturable absorption mirrors (SESAMs) , Topological Insulators (TIs), etc. Each of these SAs has their own shortcomings. In ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/11
CPCH01S3/06716H01S3/1115
Inventor 李晓辉张晨曦
Owner SHAANXI NORMAL UNIV
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