A dual electro-optical q-switch regenerative amplifier device

A regenerative amplification, electro-optical technology, applied in circuits, lasers, electrical components, etc., can solve the problems of inconsistent processing results, reduce laser service life, affect fine processing, etc., to eliminate continuous pulse background, avoid first pulse effect, improve The effect of the processing effect

Inactive Publication Date: 2019-04-09
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

For ultrashort pulse lasers, the laser peak power density corresponding to such a high-energy first pulse can reach GW / cm 2 , can easily cause damage to optical components and reduce the service life of the laser
At the same time, when processing materials that are sensitive to pulse energy, it may cause material cracks, defects, and inconsistent processing effects, which greatly affect the effect of fine processing.

Method used

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  • A dual electro-optical q-switch regenerative amplifier device
  • A dual electro-optical q-switch regenerative amplifier device
  • A dual electro-optical q-switch regenerative amplifier device

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] It should be noted that all expressions using "first" and "second" in the embodiments of this application are to distinguish between two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present application, which will not be described one by one in the subsequent embodiments.

[0033] Such as figure 1 As shown, it is a schematic diagram of the continuous pulse background phenomenon in the regeneration amplification process in the prior art;

[0034] Such as figure 2 Shown is a schematic structural diagram of a regenerative ampl...

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Abstract

The invention discloses a double electrooptical Q switching regenerative amplification device. The device is characterized by comprising a laser emitting module, an isolation system, a first electrooptical Q switching module, a second electrooptical Q switching module, a regenerative amplifier module and a synchronous trigger module; the synchronous trigger module is electrically connected with a first electrooptical Q switching driving source, a second first electrooptical Q switching driving source and the laser emitting module. According to the double electrooptical Q switching regenerative amplification device, the influence on processing of materials sensitive to pulse energy is reduced while it can be avoided that optical components are damaged, so that the service life of a laser is shortened, and the continuous pulse background and first pulse effect is eliminated.

Description

technical field [0001] The application relates to the field of laser processing, in particular to a double electro-optic Q-switch regenerative amplifier. Background technique [0002] The high power and high repetition rate ultrashort pulse (picosecond and femtosecond) laser with pulse energy of tens of μJ and repetition rate of hundreds of kHz can meet the fine processing requirements of many materials and can be widely used in laser cutting, engraving, Scribing, marking and other fields. Ultrashort pulse laser processing technology has become a research hotspot in the field of laser processing, leading the trend of future laser processing. The energy of a picosecond or femtosecond single pulse directly generated by a mode-locked oscillator is only on the order of nJ, which cannot meet the needs of laser processing. Regenerative amplification technology is usually used to increase the peak power and obtain high-energy laser with excellent performance. The regenerative am...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/115
CPCH01S3/115
Inventor 黄玉涛樊仲维张鸿博刘学松闫莹麻云凤连富强白振岙
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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