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Debugging device and debugging method of laser resonant cavity mirror

A resonator and laser technology, which is applied in the field of laser resonator mirror debugging devices, can solve the problems of minimizing the geometric deflection loss of the resonator and low adjustment accuracy, so as to reduce observation errors, improve adjustment accuracy, and improve output performance Effect

Pending Publication Date: 2022-03-25
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Although this method is simple and easy to operate, the adjustment accuracy is often not high, and it is difficult to minimize the geometric deflection loss of the resonator

Method used

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  • Debugging device and debugging method of laser resonant cavity mirror

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specific Embodiment approach 1

[0025] A laser resonator mirror debugging device, including He-Ne laser 1, negative lens 2, positive lens 3, mirror I4, mirror II5, mirror III6, half mirror 7, CCD camera 8, computer 9 , resonant cavity mirror I10 and resonant cavity mirror II11, the laser light emitted by the He-Ne laser 1 passes through the center of the negative lens 2 and the center of the positive lens 3 in sequence, and is reflected by the reflector I4 to the reflector II5, and then reflected to the Half-mirror 7, the light beam passing through half-mirror 7 is incident on resonant cavity mirror I10 or resonant cavity mirror II11, and said resonant cavity mirror I10 or resonant cavity mirror II11 reflects the incident light beam to the half-transparent mirror 7. The light reflected by the half mirror 7 is reflected by the mirror III 6 to the CCD camera 8 , and the CCD camera 8 is electrically connected to the computer 9 .

[0026] Further, the laser emitted horizontally by the He-Ne laser 1 is perpendicu...

specific Embodiment approach 2

[0038] A debugging method utilizing the debugging device described in Embodiment 1, comprising the following steps:

[0039] S1: Adjust the confocal placement of the negative lens 2 and the positive lens 3 so that the 632.8nm laser emitted by the He-Ne laser 1 passes through the centers of the negative lens 2 and the positive lens 3 in sequence;

[0040] S2: Adjust the position of the pinhole diaphragm I12 so that the aperture is located at the center of the beam;

[0041] S3: Adjust the mirror I4 and mirror II5, and adjust the position of the aperture diaphragm II13, so that the laser passes through the aperture aperture II13 and is horizontally incident on the cavity mirror I10;

[0042] S4: Adjust the resonator mirror I10 so that the incident and reflected 632.8nm laser is irradiated on the pinhole diaphragm II13 and is concentric with the aperture;

[0043] S5: Adjust the half-mirror 7 and mirror III 6 so that the 632.8nm light reflected by the resonator mirror I10 is inc...

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Abstract

The invention discloses a debugging device and a debugging method for a laser resonant cavity mirror, and belongs to the technical field of laser debugging. A debugging device of a laser resonant cavity mirror comprises a He-Ne laser, a negative lens, a positive lens, a reflecting mirror I, a reflecting mirror II, a reflecting mirror III, a semi-transparent and semi-reflecting mirror, a CCD camera, a computer, a resonant cavity mirror I and a resonant cavity mirror II, and laser emitted by the He-Ne laser sequentially penetrates through the center of the negative lens and the center of the positive lens, is reflected to the reflecting mirror II through the reflecting mirror I and then is transmitted to the computer through the computer. The light beam is reflected to the semi-transparent and semi-reflecting mirror, the light beam penetrating through the semi-transparent and semi-reflecting mirror enters the resonant cavity mirror I or the resonant cavity mirror II, the resonant cavity mirror I or the resonant cavity mirror II reflects the incident light beam to the semi-transparent and semi-reflecting mirror, the light reflected by the semi-transparent and semi-reflecting mirror is reflected to the CCD camera through the reflecting mirror III, and the CCD camera is electrically connected with the computer. According to the invention, the defect of low debugging precision of a traditional laser is overcome, the adjustment precision of the traditional laser is improved by several orders of magnitude, and the output performance of the laser is improved.

Description

technical field [0001] The invention relates to a debugging device and a debugging method for a laser cavity mirror, belonging to the technical field of laser debugging. Background technique [0002] The laser resonator is an essential part of the laser, and its adjustment accuracy directly affects the output performance of the laser, such as output power, output mode, and emission direction. A laser resonator with very high adjustment accuracy can greatly reduce its geometric deflection loss and improve the output performance of the laser. In the adjustment of the laser resonator mirror, technicians usually use the combination of He-Ne light and pinhole diaphragm to adjust, and the adjustment is considered to be completed when the He-Ne light reflected by the resonator mirror is in the center of the pinhole diaphragm. Although this method is simple and easy to operate, the adjustment accuracy is often not high, and it is difficult to minimize the geometric deflection loss ...

Claims

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Application Information

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IPC IPC(8): G01M11/00
CPCG01M11/00
Inventor 李旭东陈兆东闫仁鹏董志伟樊荣伟陈德应
Owner HARBIN INST OF TECH
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