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Annular laser device with electrode group and manufacture method for electrode group

A technology of a ring laser and a manufacturing method, which is applied in the directions of lasers, laser parts, laser parts, etc., can solve the problems of long sealing method period, resonant cavity rupture, large thermal residual stress and deformation, etc., and achieves a simple manufacturing method. Reliable, easy to remove or replace, enhance serviceability

Active Publication Date: 2015-07-22
NO 717 INST CHINA MARINE HEAVY IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ring laser electrode anode bonding and sealing method overcomes the disadvantage that the electrode indium seal cannot withstand high temperature loads
However, this method has the following disadvantages: the electrode material of the ring laser is metal, and the thermal expansion coefficient of the electrode and the resonant cavity is very different. Residual stress and deformation, which may even lead to the rupture of the resonant cavity in severe cases
The method of anodic bonding is more complicated and requires special anodic bonding equipment
In addition, whether it is the indium solder sealing method or the anodic bonding method, it is necessary to heat the resonant cavity and the electrodes as a whole. The heating time is generally 4 to 6 hours, and the sealing method has a long period and low efficiency.

Method used

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  • Annular laser device with electrode group and manufacture method for electrode group
  • Annular laser device with electrode group and manufacture method for electrode group
  • Annular laser device with electrode group and manufacture method for electrode group

Examples

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Effect test

Embodiment 1

[0040] Example 1: It is a basic embodiment of a ring laser with an electrode group according to the present invention. It includes a resonant cavity 1. The resonant cavity 1 includes an electrode group 2, an optical mirror 3 and a number of light-passing channels; the optical mirror 3 includes a beam splitter. Prism 3.1, light combining prism 3.2, reflecting mirror 3.3, E-shaped mirror 3.4; there is a detector 5 on the resonant cavity 1; the interior of the resonant cavity 1 is filled with helium-neon mixed gas; the electrode group 2 is composed of electrode conductor 2.1 It is formed by hot pressing connection with the glass ring 2.2 through the connection layer 2.3; the connection layer 2.3 is: the seed layer 2.33 deposited on the opposite sealing position of the electrode conductor 2.1 and the glass ring 2.2, and the seed layer 2.33 is deposited The transition layer 2.32, the active reaction layer 2.31 made on the transition layer 2.32, and the solder layer ring sheet 2.34 s...

Embodiment 2

[0041] Example 2: It is the preferred technical solution. The difference from Embodiment 1 above is that the anode electrode group 2.02 has a small anode electrode group 2.02' and a large anode electrode group 2.02''. The material of the glass ring 2.2 is the same as the material of the resonant cavity 1, mainly selected from glass-ceramic or silicon dioxide; the material of the electrode conductor 2.1 is a metal material.

Embodiment 3

[0042] Example 3: It is the preferred technical solution. The difference from Embodiment 1 above is that the materials of the seed layer 2.33 and the transition layer 2.32 are all metals. The active reaction layer 2.31 is a layered structure made of two or more materials with mixed negative calorific value through alternate evaporation of nano-films, or by screen printing of nano-particles. The material of the seed layer 2.33 is mainly Cr, the material of the transition layer 2.32 is mainly Au, and the material of the active reaction layer 2.31 is selected from two or more combinations of Al, Ni, Ti, Si, Nb and Mo. The material of the solder layer ring sheet 2.34 is high melting point solder, selected from gold-tin alloy solder, or tin-silver-copper alloy solder.

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Abstract

The invention relates to an annular laser device with an electrode group and a manufacture method for the electrode group. The annular laser device comprises a resonance cavity, wherein the resonance cavity is provided with the electrode group, an optical mirror and a plurality of clear aperture channels; helium-neon mixed gas is filled inside the resonance cavity; and the electrode group is formed by connection of an electrode conductor and a glass segment through a connecting layer in a thermocompression manner. The manufacture method for the electrode group comprises the following steps of depositing a seed layer and a transition layer, manufacturing an activated reaction layer, exciting the activated reaction layer, and welding the electrode conductor and the glass segment in a thermocompression way. The annular laser device and the manufacture method have the main advantages that 1, the electrode group is connected with the resonance cavity through the glass segment of the electrode group in a sealing manner, so that instant airtight sealing connection of local heating is realized, and the affect of thermal residual stress generated in integral heating and sealing is effectively eliminated; 2, the glass segment is clung to the resonance cavity through optical cement, and the disassembly and the replacement of the electrode group are convenient; and 3, the glass segment and the resonance cavity adopt the same material, and the sealing connection stress generated in direct sealing connection of the electrode group and the resonance cavity is avoided.

Description

technical field [0001] The invention relates to a ring laser with an electrode group and a method for manufacturing the electrode group, and belongs to the technical field of ring laser manufacturing. Background technique [0002] Ring lasers are widely used as standard light sources for high-precision optical metrology instruments, such as laser gyroscopes. Laser gyroscope is the only high-precision photoelectric inertial sensing element that has really achieved fruitful practical applications in the field of inertial technology. It is widely used in inertial navigation systems on aircraft, rockets and tanks. In addition, laser gyros can also provide precise positioning for the depth and location of oil drilling. [0003] Ring lasers usually use a whole piece of quartz glass or glass ceramics as the resonant cavity of the ring laser. Three or more light passages are drilled on the resonant cavity to form the required polygonal ring light path. The optical mirror and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/083H01S3/038H01S3/05H01S3/02
Inventor 刘文明孙峰杨长城李卓
Owner NO 717 INST CHINA MARINE HEAVY IND GRP
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