Pulse Delay Tunable 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 not being able to hit the material and reducing the processing effect
Active Publication Date: 2021-06-01
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 are described in detail below in the embodiments, the content of which is sufficient to enable any person skilled in the relevant art to understand the technical content of the present invention and implement accordingly, and according to the contents disclosed in this specification, claims and drawings, The objects and advantages associated with the present invention can be readily understood by any person skilled in the relevant art. The following examples further illustrate the concept of the present invention in further detail, but are not intended to limit the scope of the present invention in any way.
[0020] figure 1 It is a schematic diagram of a pulse delay tunable fiber laser system according to an embodiment of the present disclosure. like figure 1 As shown, the pulse delay tunable fiber laser system 1 may include a pulse seed laser 10, a fiber circulator 11, a first delay fiber 12, a first grat...
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Abstract
An adjustable pulse delay fiber laser system, and the pulse delay adjustable fiber laser system includes a pulse seed source laser, a fiber circulator, a fiber combiner, a first grating, a first delay fiber and a bypass fiber. The fiber circulator is connected with the pulsed seed source laser and has a first output end and a second output end. The fiber coupler couples the first output end and the second output end of the fiber circulator. The first grating is located between the fiber circulator and the fiber coupler, the first delay fiber is located between the first grating and the fiber circulator, and the first delay fiber is connected to the first output end. The bypass fiber is located between the fiber circulator and the fiber coupler, one end of the bypass fiber is connected to the second output end and the other end is connected to the fiber coupler.
Description
technical field [0001] The present invention relates to a fiber laser system. Background technique [0002] Pulsed laser processing is a commonly used material processing method at present. The pulsed laser system generates two pulsed lasers with a delay time to process materials. The first pulsed laser that hits the material first is used as a pre-processing laser, while the second delayed pulsed laser A pulsed laser is used as the main processing laser. Since different materials have different properties, 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, plasma will be sprayed out when the pulsed laser hits the material, 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, before the delayed pulsed laser hits the material, the surface temperat...
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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