Online testing device for performance of laser gyroscope reflector

Abstract

The invention belongs to the technical field of laser performance testing, and particularly relates to an online testing device for performance of a laser gyroscope reflector. The online testing device is obtained through performing mechanical processing, optical processing and chemical polishing on microcrystalline glass material with a cube structure. The body is a straight prism chamber with a decahedron structure. The bottom surface of the straight prism is an octagon of which each inner corner is 135 DEG, and the middle part is provided with a central through hole of which the diameter is 50mm. A spherical surface output mirror, an anode 1, a chamber translation mirror, a cathode, a planar output mirror, an anode 2, a spherical surface total reflection mirror and a blank surface are successively arranged on six side surfaces of the straight prism. Two sides of the planar output mirror and two sides of the spherical surface output mirror are provided with four light windows. After a power supply is switched on, the online testing device for the performance of the laser gyroscope reflector starts to operate. An area which extends from the anode 1 to the anode 2 through the cathode in the straight prism chamber is a discharging area. A He-Ne laser output with a wavelength of 632.8nm is generated on the spherical surface output mirror and the planar output mirror, thereby observing performance change condition of the laser gyroscope reflector in real time.

Description

technical field [0001] The invention belongs to the technical field of laser performance testing, and in particular relates to an online performance testing device for a laser gyro reflector. Background technique [0002] Laser gyro is a kind of He-Ne laser. Although the technology of straight-cavity He-Ne laser is relatively mature, and its life and reliability have been greatly improved, compared with laser gyro, commercial He-Ne laser is a straight-cavity laser. In this way, the discharge area is also far away from the mirror, so the electronic damage cannot directly affect the performance of the laser. However, due to the characteristics of the structure of the laser gyro ring resonator, the electronic damage of the thin film will directly affect the loss, phase change and other indicators of the resonator. Since the electronic damage of the film layer can lead to changes in the absorption, scattering and other indicators of the mirror film layer, these changes directly...

AI Technical Summary

Problems solved by technology

[0002] Laser gyro is a kind of He-Ne laser. Although the technology of straight-cavity He-Ne laser is relatively mature, and its life and reliability have been greatly improved, compared with laser gyro, commercial He-Ne laser is a straight-cavity laser. The discharge area is also far away from the mirror, so the electronic damage cannot directly affect the performance of the laser

However, due to the characteristics of the structure of the laser gyro ring resonator, the electronic damage of the thin film will directly affect the loss, phase change and other indicators of the resonator.

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