Pulse delay tunable optical fiber laser system
A fiber laser and pulse delay technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of reducing the processing effect and failing to hit materials
Active Publication Date: 2020-06-23
IND TECH RES INST
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Problems solved by technology
When the delay time between the two lasers is too short, plasma will be ejected when the pulsed laser hits the material, and the ejected plasma will block the delayed pulsed laser, so that the delayed pulsed laser cannot hit the material. surface
Conversely, when the delay time between the two lasers is too long, before the delayed pulsed laser hits the material, the surface temperature of the material has dropped to a critical point, reducing the effect of the main processing
Method used
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[0019] The detailed features and advantages of the present invention will be described in detail in the following embodiments. The content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and in accordance with the content disclosed in this specification, claims and drawings, Anyone who is familiar with the relevant art can easily understand the related purpose and advantages of the present invention. The following examples further illustrate the viewpoint of the present invention in detail, but do not limit the scope of the present invention by any viewpoint.
[0020] figure 1 It is a schematic diagram of a pulse delay adjustable fiber laser system according to an embodiment of the present disclosure. Such as figure 1 As shown, the pulse delay adjustable fiber laser system 1 may include a pulse seed source laser 10, a fiber circulator 11, a first delay fiber 12, a first gratin...
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A pulse delay tunable optical fiber laser system is provided. The pulse delay tunable optical fiber laser system comprises pulse seed source laser, an optical fiber circulator, an optical fiber combiner, a first grating, a first delay optical fiber and a bypass optical fiber, the optical fiber circulator is connected with the pulse seed source laser and is provided with a first output end and a second output end. The optical fiber combiner is coupled to the first output end and the second output end of the optical fiber circulator. The first grating is located between the optical fiber circulator and the optical fiber combiner, the first delay optical fiber is located between the first grating and the optical fiber circulator, and the first delay optical fiber is connected with the first output end. One end of the bypass optical fiber is connected with the second output end, and the other end of the bypass optical fiber is connected with the optical fiber combiner.
Description
Technical field [0001] The invention relates to a fiber laser system. Background technique [0002] Pulsed laser processing is currently a commonly used material processing method. The pulsed laser system generates two pulsed lasers with delay time to process the material. The first pulsed laser that hits the material first is used as the pre-processing laser, and the second delayed Pulse laser is used as the main processing laser. Because different materials have different characteristics, the delay time of the two lasers has a great influence on the processing quality. When the delay time between the two lasers is too short, since the pulsed laser hits the material, plasma will be sprayed, and the sprayed plasma will block the delayed pulsed laser, so that the delayed pulsed laser cannot hit the material. surface. Conversely, when the delay time between the two lasers is too long, and the delayed pulse laser has not hit the material, the surface temperature of the material h...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01S3/067H01S3/10
CPCH01S3/0675H01S3/06754H01S3/06791H01S3/10H01S3/10084
Inventor 苏信嘉张耀文卢建宏宋育诚曹宏熙
Owner IND TECH RES INST