Mode-locked pulse light source based on hydrazone organic compounds and its preparation method
A mode-locked pulse and organic technology, applied in the field of lasers, can solve the problems of high investment cost, instability, and easy oxidation, and achieve the effect of reducing investment cost, improving service life and stable output.
Active Publication Date: 2021-08-06
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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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is an embodiment of the metal plate of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0027] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in...
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Abstract
The present invention relates to a mode-locked pulse light source and a preparation method based on hydrazone organic matter, and mainly relates to the field of laser technology. base) hydrazine organic matter. The laser intensity before mode-locking will change randomly, and only when the randomly generated light intensity is large enough, it will pass through the saturable absorber and oscillate in the laser cavity. This process is repeated so that high-intensity laser light is amplified while low-intensity light is absorbed. After oscillating many times, the pulse is gradually compressed, so that the width of the output pulse is reduced, and the obtained pulse width is only 1.13ps of the traditional soliton. And the organic matter can exist in the air for a long time, so that the output of the laser is stable, thereby improving the service life of the ultrashort pulse fiber laser, thereby reducing the investment cost.
Description
technical field [0001] The invention relates to the technical field of lasers, and mainly introduces a mode-locked pulse light source based on hydrazone organic compounds and a preparation method. Background technique [0002] In recent years, due to the application of ultrashort pulse fiber laser in fiber optic communication, material processing, biomedicine, spectroscopy, nonlinear optics, optical frequency metrology, etc., it has attracted widespread attention. Most ultrashort pulse lasers are realized by processing the continuous wave into ultrashort pulses by a nonlinear optical modulation element called a saturable absorber (SA), so 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 dichalcogenides (TMDs), saturable absorber mirrors (SESAMs) , topological insulators (TIs), etc. And these SAs have the...
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IPC IPC(8): H01S3/067H01S3/11
CPCH01S3/06716H01S3/1115
Inventor 李晓辉张晨曦
Owner SHAANXI NORMAL UNIV