Built-in screw type electrode radio-frequency carbone dioxide laser

A carbon dioxide and spiral technology, which is applied in the field of laser systems, can solve the problems of large volume and quality, inhibit popularization and promotion, maintain the quality of laser resonator gas, and achieve the effects of easy fabrication and assembly and improved conversion efficiency

Inactive Publication Date: 2008-08-13
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These factors make the RF excitation technology complicated and the cost of lasers is expensive, which to a certain extent inhibits the popularization and promotion of RF CO2 lasers.
On the other hand, whether it is a plate or a strip electrode has a large volume and mass, it will inevitably absorb or release some gas during the gas discharge process, which is undoubtedly unfavorable for maintaining the gas quality in the laser cavity. , so that it will affect the laser output power and service life of the device
In further searches, there is no report on the radio frequency carbon dioxide laser using the built-in spiral electrode for gas discharge

Method used

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  • Built-in screw type electrode radio-frequency carbone dioxide laser

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention includes: a laser resonant cavity mirror, a laser resonant cavity body 5, a laser medium gas 4, a built-in spiral radio frequency electrode and a laser resonant cavity. in:

[0012] The laser resonator mirror includes a total reflection mirror 1 and an output window 6, which are respectively fixed on both ends of the laser resonator body 5; In the laser resonator space; the built-in spiral RF electrode is composed of the built-in spiral electrode cathode 2 and the built-in spiral electrode anode 3, and the built-in spiral electrode cathode 2 and the built-in spiral electrode anode 3 have the same hand direction , with the same pitch, are arranged in the laser resonator body 5, and their axes coincide with those of the laser resonator body 5 and the laser resonator mirror.

[0013] The substrate of the total reflection mirror 1 is made of metals such as optical glass or copper, and is plated with a total reflection film ...

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Abstract

This invention relates to a built-in screw electrode CO2 laser including: a laser resonant cavity mirror, a laser resonant cavity body, laser medium gas, built-in screw RF electrodes and a laser resonant cavity, in which, the laser resonant cavity mirror includes a total reflection lens and an output window fixed on either end face of the body, the laser medium gas is filled in the cavity composed of the mirror and the body, the pair of built-in screw RF electrodes are composed of a screw anode and a cathode rotating in the same direction and in the same pitch to be set in the cavity in the distance of 1 / 2 pitch and the axial lead of the pair of RF electrodes are coincident with that of the cavity body, the body and the cavity.

Description

technical field [0001] The invention relates to a component in the field of electrical technology, specifically a radio frequency carbon dioxide laser with a built-in spiral electrode, that is, a laser medium gas in a laser resonator cavity is excited by radio frequency discharge to obtain laser output by using a built-in spiral electrode. laser system. Background technique [0002] Compared with the DC high-voltage excitation laser, the RF-excited carbon dioxide laser has uniform and stable gas discharge and good laser beam quality. It is the main development direction of gas lasers and has excellent application value and broad application prospects in the field of laser processing. Generally, gas laser devices excite the laser gas medium through electrodes to obtain laser output, and electrodes are the key components of gas lasers. [0003] After searching the existing technical literature, it is found that the patent publication number is CN1245989 and the name is "radio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/038H01S3/08
Inventor 丁健君
Owner SHANGHAI JIAOTONG UNIV
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