Online testing device for performance of laser gyroscope reflector

A technology of online testing and laser gyroscope, which is applied in the direction of testing optical performance, can solve problems such as the impact of laser performance, and achieve the effect of improving overall performance

Inactive Publication Date: 2014-12-24
THE 3RD ACAD 8358TH RES INST OF CASC
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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

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  • Online testing device for performance of laser gyroscope reflector
  • Online testing device for performance of laser gyroscope reflector
  • Online testing device for performance of laser gyroscope reflector

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific implementation the present invention will be further described:

[0024] Such as figure 1 As shown, an online test device for the performance of laser gyro mirrors is obtained by mechanical processing, optical processing and chemical polishing of a cube-shaped glass-ceramic material. The main body is a right prism cavity with a decahedral structure. It is an octagon with each internal angle of 135°, and the octagon is formed by connecting line segments with lengths L1 and L2 at intervals; L1=31mm, L2=46mm, and the height of the right prism is 40-60mm; There is a central through hole with a diameter of 50 mm; a spherical output mirror, an anode 1, a cavity translation mirror, a cathode, a planar output mirror, an anode 2, a spherical total reflection mirror and a blank surface are arranged sequentially on the six sides of the straight prism. In this embodiment, the positions where the spherical output mirror, t...

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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...

Claims

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Application Information

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IPC IPC(8): G01M11/02
Inventor 季一勤刘华松姜玉刚王利栓冷健
Owner THE 3RD ACAD 8358TH RES INST OF CASC
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