Laser output device

Abstract

The invention discloses a laser output device. The laser output device comprises a laser, a beam expander, an acoustic optical modulator and a scanning head; the beam expander is used for expanding the diameter of a laser beam output by the laser; the input end of the acousto-optic modulator is connected with the output end of the beam expander; the input end of the scanning head is connected with the output end of the acoustic optical modulator; the acousto-optic modulator comprises an acousto-optic crystal, a collimator and a frequency adjusting module, the laser beam with the diameter expanded by the beam expander enters the acousto-optic crystal, the acousto-optic crystal outputs first-order diffraction light and zero-order diffraction light, the first-order diffraction light is output to the scanning head after passing through the collimator, the frequency adjusting module is connected with the acousto-optic crystal, and the zero-order diffraction light is output to the scanning head after passing through the collimator. The frequency adjusting module is used for adjusting the frequency of the laser beam in the acousto-optic crystal, so that the frequency of the first-order diffraction light is larger than the frequency of the laser beam entering the acousto-optic crystal. The laser output device can reduce the heat effect of the laser and improve the transmission efficiency of the laser.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a laser output device. Background technique [0002] In the prior art, when the laser output by the laser output device is processing the product (such as marking or drilling), due to the structural limitations of the laser output device, the laser will have a thermal effect on the product and affect the product quality, such as The pattern is blurred when marking, or the edge of the hole will collapse when punching, or the inner wall of the hole will have cracks. Therefore, there is an urgent need for a laser output device capable of reducing the thermal effect of the laser. Contents of the invention [0003] The main purpose of the present invention is to propose a laser output device, aiming at reducing the thermal effect of the laser and improving the transmission efficiency of the laser. [0004] In order to achieve the above object, the present invention proposes a laser...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when the laser output by the laser output device is processing the product (such as marking or drilling), due to the structural limitations of the laser output device, the laser will have a thermal effect on the product and affect the product quality, such as The pattern is blurred when marking, or the edge of the hole will collapse when punching, or the inner wall of the hole will have cracks, etc.

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