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A picosecond laser single pulse selection and control system and method

A technology of laser pulse and control system, applied in the field of laser, can solve the problem of not meeting the needs of laser processing

Active Publication Date: 2017-10-31
WUHAN HUARAY PRECISION LASER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the single pulse energy directly generated by the oscillator is only on the order of nJ (nanojoules), it cannot meet the needs of laser processing

Method used

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  • A picosecond laser single pulse selection and control system and method
  • A picosecond laser single pulse selection and control system and method
  • A picosecond laser single pulse selection and control system and method

Examples

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Embodiment Construction

[0037] A picosecond laser single pulse selection and control system and method according to the present invention will be further described below with reference to the drawings and embodiments.

[0038] The following is the best example of a picosecond laser single pulse selection and control system and method described in the present invention, which does not limit the protection scope of the present invention.

[0039] figure 1 with figure 2 A picosecond laser single pulse selection and control system is shown, including a control circuit 7, an optical menu device 3, and a master optical clock 1; the control circuit 7 and the master optical clock 1 are respectively connected to the optical menu device 3; The optical clock 1 is used to send the basic clock laser pulse signal 2, the optical selection device 3 is used to screen the basic clock laser pulse signal 2, and selects the laser pulse train 4 of any frequency, and the control circuit 7 is used to adjust Controls the ...

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PUM

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Abstract

The invention relates to a monopole selection and control system and method for a picosecond laser. The monopole selection and control system is characterized by comprising a control circuit, an optical selection apparatus and a main optical clock, wherein the control circuit and the main optical clock are connected with the optical selection apparatus separately; the main optical clock is used for emitting a foundation clock laser pulse signal; the optical selection apparatus is used for screening the foundation clock laser pulse and selecting laser pulse strings at any frequencies; and the control circuit is used for adjusting and controlling an initial pulse suppression effect on the pulse strings. The pulse strings (with adjustable frequency range of 0.156Hz to 1MHz) at any frequencies can be selected from the laser pulse with repeated frequency of 50MHz; the initial pulse suppression effect on the pulse strings can be realized through software; a Burst pulse function is realized; and the Burst pulse waveform can be set and adjusted by software.

Description

technical field [0001] The present invention relates to the field of laser technology, and more specifically relates to a picosecond laser single pulse selection and control system and method. Background technique [0002] The picosecond laser with a pulse energy of tens of μJ (microjoule) and a repetition rate of several hundred kHz (kilohertz) can meet the fine processing requirements of many materials and can be widely used in laser cutting and engraving , Scribing and marking and other fields. Picosecond laser processing technology has become a research hotspot in the field of laser processing, leading the trend of future laser processing. Since the single pulse energy directly generated by the oscillator is only on the order of nJ (nanojoule), it cannot meet the needs of laser processing. The regenerative amplifier in the prior art controls the injection and derivation of the laser pulse signal through an active switch, and at the same time modulates the loss of the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/131
CPCH01S3/131H01S3/1317
Inventor 吴艳清徐进林
Owner WUHAN HUARAY PRECISION LASER
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