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Continuous pulse composite mode high-power all-fiber laser system

A fiber laser, composite mode technology, applied in lasers, laser devices, laser components and other directions, can solve problems such as system complexity, achieve the effect of simple structure, enhanced stability and reliability, and easy mass assembly and production

Pending Publication Date: 2021-12-17
HFB PHOTONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a laser composite cleaning system described in the patent No. ZL202010186590.7, a continuous laser and a pulsed laser are used in the system, and a cleaning head and a vibrating mirror system are equipped for each of the two lasers. The system more complex

Method used

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  • Continuous pulse composite mode high-power all-fiber laser system
  • Continuous pulse composite mode high-power all-fiber laser system
  • Continuous pulse composite mode high-power all-fiber laser system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Such as figure 2 Shown is a continuous pulse compound mode high-power all-fiber laser system, including electronic control module 1, high-power continuous fiber laser module group 2, high-power pulse fiber laser module group 3, all-fiber laser beam combining module 4 and laser output head 5.

[0062] The high-power continuous fiber laser module group 2 consists of three modules: a first high-power continuous fiber laser module 21 , a second high-power continuous fiber laser module 22 , and a third high-power continuous fiber laser module 23 . Each module is a high-power continuous fiber laser oscillator with an output power of about 2kW, such as image 3 As shown, taking the first high-power continuous fiber laser module 21 as an example, it includes a first semiconductor pump 211, a forward (6+1)×1 fiber pump signal beam combiner 212, a first high-reflection fiber grating 213 , the first ytterbium-doped double-clad fiber 214, the first low reflection fiber grating 2...

Embodiment 2

[0067] Such as Figure 7 Shown is a continuous pulse compound mode high-power all-fiber laser system, including electronic control module 1, high-power continuous fiber laser module group 2, high-power pulse fiber laser module group 3, all-fiber laser beam combining module 4 and laser output head 5.

[0068] Such as Figure 7 As shown, the high-power continuous fiber laser module group 2 includes a high-power continuous fiber laser module 21, which is a high-power continuous fiber laser oscillator with an output power of about 2kW, such as image 3 As shown, it includes a first semiconductor pump 211, a forward (6+1)×1 fiber pump signal combiner 212, a first high reflection fiber grating 213, a first ytterbium-doped double-clad fiber 214, a first A low reflection fiber grating 215 , a first reverse (6+1)×1 fiber pump signal beam combiner 216 , a first cladding mode filter 217 , and a first output fiber 218 . The working wavelength of the first semiconductor pump 211 is 915n...

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Abstract

The invention discloses a continuous pulse composite mode high-power all-fiber laser system, which belongs to the field of fiber lasers and comprises an electric control module, a high-power continuous fiber laser module group, a high-power pulse fiber laser module group, an all-fiber laser beam combining module and a laser output head, wherein the electric control module is respectively connected with the high-power continuous fiber laser module group and the high-power pulse fiber laser module group, the output ends of the high-power continuous fiber laser module group and the high-power pulse fiber laser module group are jointly connected to the all-fiber laser beam combiner module, and the all-fiber laser beam combiner module is connected with the laser output head. The all-fiber laser in a high-power continuous pulse composite mode is realized, only continuous laser or pulse laser can be output, the continuous laser and the pulse laser can be simultaneously output, and the power ratio of the continuous laser to the pulse laser can be adjusted. The laser can be used in the field of high-end laser manufacturing such as high-efficiency laser cleaning.

Description

technical field [0001] The invention belongs to the field of fiber lasers, in particular to a continuous pulse compound mode high-power all-fiber laser system. Background technique [0002] With high output power, excellent beam quality, simple thermal management, easy maintenance, and flexible transmission, fiber lasers have gradually developed into a new generation of fiber lasers for advanced laser intelligent manufacturing, and are widely used in laser cutting, laser welding, laser Cladding, laser cleaning and other laser manufacturing fields. [0003] Fiber lasers are divided into continuous fiber lasers and pulsed fiber lasers: continuous fiber lasers emit light continuously in the time domain in the light emitting state, and pulsed fiber lasers emit light periodically in the form of laser pulses in the time domain in the light emitting state of. High-power continuous fiber lasers are generally used in laser manufacturing fields such as laser cutting, laser welding, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/09H01S3/094H01S3/23
CPCH01S3/2375H01S3/06754H01S3/06791H01S3/094076H01S3/09
Inventor 房强史伟许海鑫丁香栋
Owner HFB PHOTONICS CO LTD