Myriawatt-level ultra-high-power all-fiber continuous fiber laser system

Abstract

An embodiment of the invention provides a myriawatt-level ultra-high-power all-fiber continuous fiber laser system, which comprises a total electric control module, at least two laser modules connected with the total electric control module respectively, and a laser synthesis module connected with the output ends of the at least two laser modules. The total electric control module is used for controlling on or off of each laser module, and monitoring operation states of each laser module and the laser synthesis module; the laser module is used for independently generating preset first-power laser; and the laser synthesis module is used for coupling the laser output by the started laser modules and outputting coupled preset second-power laser. The system realizes output of high-power laser;and meanwhile, through the modular design of each laser module integrating an electronic control submodule, power submodule and a laser unit, the myriawatt-level ultra-high-power all-fiber continuousfiber laser system is allowed to have concise structural and functional design, and is easy to realize commercial mass production.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a 10,000-watt-level ultra-high-power all-fiber continuous fiber laser system. Background technique [0002] Fiber laser refers to a laser that uses a rare earth-doped fiber as a laser working substance. As a gain medium, the rare earth element-doped fiber has good winding flexibility, large volume / surface area ratio, unique waveguide characteristics, etc., which makes fiber lasers have high efficiency, good heat dissipation, and high beam quality compared to other types of lasers. Good compatibility, simple and compact structure, convenient and reliable use, long working life, easy maintenance and so on. [0003] Medium and high-power fiber lasers are mainly used in metal cutting, welding and cladding processes. In 2017, the localization rate of medium-power fiber lasers increased steadily, reaching 60.5%, realizing most of the import substitution. [0004] However, there is sti...

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Problems solved by technology

[0004] However, there is still a certain gap between high-power domestic laser technology and imported lasers, and the localization rate is only 10.6%. In particular, high-power continuous fiber lasers above 10,000 watts can only rely on imports

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