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A laser beam combining system and a laser beam combining method

A technology of combining laser beams and laser beams, applied in optics, optical components, instruments, etc., can solve the problems of high manufacturing process requirements and technical difficulties, and achieve the effect of meeting the requirements of high laser power

Inactive Publication Date: 2011-12-21
HANS LASER TECH IND GRP CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the design and manufacture of CO2 lasers with high power output is technically difficult and requires high manufacturing processes.

Method used

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  • A laser beam combining system and a laser beam combining method
  • A laser beam combining system and a laser beam combining method
  • A laser beam combining system and a laser beam combining method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] see figure 1 , The present invention provides a laser beam combining system and a laser beam combining method. The laser beam combining system 10 includes a first laser 11 , a second laser 12 , a mirror 13 and a beam combining mirror 15 .

[0017] In this embodiment, the first laser 11 and the second laser 12 are lasers of the same model, and can emit laser beams with the same parameters. The laser beam 110 emitted by the first laser 11 and the laser beam 120 emitted by the second laser 12 for linearly polarized light. The beam combiner 15 is a thin film polarizer (TFP, thin film polarizer), and the beam combiner 15 includes a first mirror 151 and a second mirror 152 . When the light is incident on the beam combiner 15 at the Brewster angle, the incident surface is a plane determined by the incident light and the normal of the mirror ...

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Abstract

The present invention provides a laser beam combining system, comprising a first laser, a second laser, a reflecting mirror, and a beam combining mirror, wherein the beam combining mirror is a thin film polarizer, the beam combining mirror includes a first mirror surface and a second mirror surface, and the first laser outputs A reflector is arranged on the center line of the optical path. After being reflected by the reflector, the laser beam output by the first laser is incident on the first mirror surface of the beam combiner and reflected by the mirror surface. The laser beam emitted by the second laser is at the Brewster angle. Incident to the beam combiner, after the laser beam emitted by the second laser is transmitted through the beam combiner, it overlaps with the laser beam reflected by the first mirror surface of the beam combiner to form a beam. The invention also discloses a laser beam combining method. The laser beam combining system of the present invention can combine laser beams emitted by lasers of the same type. The power of the combined output laser beam is twice that of the single beam laser power, which can meet the requirements of high laser power for processing and use under the premise of ensuring the stable operation of the laser.

Description

technical field [0001] The invention relates to a laser beam combining system and a laser beam combining method. Background technique [0002] For slab-type CO2 lasers, increasing the laser output power is conducive to increasing the processing speed and improving production efficiency. However, designing and manufacturing high-power output CO2 lasers is technically difficult and requires high manufacturing processes. Combining the laser beams of two slab-type CO2 lasers of the same model into one laser beam, the power of the combined output laser beam is twice the laser power of a single laser beam, which can ensure that the laser works stably and meets the processing requirements ( such as cutting) for high power requirements. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a laser beam combining system and a laser beam combining method. [0004] A laser beam combining system, co...

Claims

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Application Information

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IPC IPC(8): G02B27/28G02B27/09G02B1/10
Inventor 张鹏林守利高云峰
Owner HANS LASER TECH IND GRP CO LTD
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