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Bridge crystal heat dissipation block

A heat sink and crystal technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems that are not conducive to the miniaturization and miniaturization of devices, affect the coupling accuracy of optical fibers, and the upward warping of acousto-optic oscillators, etc. Direct coupling, avoiding crystal cracking, and maintaining the effect of heat dissipation

Active Publication Date: 2019-08-23
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure can better avoid the cracking of the crystal during the assembly process, but the rear screw fixing method is likely to cause the acousto-optic vibrator to warp after assembly, which affects the accuracy of fiber coupling
In addition, this structural design cannot make full use of the characteristics that the optical path direction requires a long distance to achieve the separation of the diffraction spots, which increases the size in the width direction, which is not conducive to the miniaturization and miniaturization of the device.
[0009] So far, there is no relevant report on a heat sink suitable for the assembly of small and miniaturized acousto-optic oscillators

Method used

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  • Bridge crystal heat dissipation block
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Experimental program
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Effect test

Embodiment 1

[0052] Based on TeO 2 The crystal 100MHz acousto-optic vibrator usually has a height of 2.7mm and a length of 16mm. The pier height of the bridge-type crystal cooling block is designed to be 2.8mm, and the distance between the two piers is 18mm. M2 thread is used for fixing, and the through hole of the pier is designed to be 2.5mm. The total length of the cooling block is 24mm, the total width is 10mm, and the total height is 10mm.

[0053] The crystal cooling block is bonded with heat-conducting glue and the acousto-optic vibrator, and then assembled in the shell of the acousto-optic modulator, and a 100MHz acousto-optic modulator is formed after matching circuits. In the following optical fiber coupling, by adjusting the two M2 screws in the through hole of the bridge pier, the relative position of the cooling block in the shell is changed, and the assembly error due to the actual production process is compensated to realize the fine adjustment of the optical path and impr...

Embodiment 2

[0055] Based on TeO 2 The crystal 120MHz acousto-optic vibrator usually has a height of 2.5mm and a length of 12mm. The pier height of the bridge-type crystal cooling block is designed to be 2.6mm, and the distance between the two piers is 15mm. M2 thread is used for fixing, and the through hole of the pier is designed to be 2.5mm. The total length of the cooling block is 20mm, the total width is 10mm, and the total height is 10mm.

[0056] The crystal cooling block is bonded with heat-conducting glue and the acousto-optic vibrator, and then assembled in the shell of the acousto-optic modulator. After matching the circuit, a 120MHz acousto-optic modulator is formed. In the following fiber coupling, by adjusting the two M2 screws in the through hole of the bridge pier, it is also easy to realize the fine adjustment of the optical path and improve the accuracy of the collimation coupling.

[0057] In summary, the present invention is a crystal heat sink with a bridge structur...

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Abstract

The invention provides a bridge crystal heat dissipation block, comprising a main body with an optical path region extending along the length direction; an abutment portions that protrude upwards fromthe both sides at the middle and rear ends of the optical path region of the main body; through holes that are respectively arranged at the abutment portions. The bridge crystal heat dissipation block can effectively avoid cracking of a crystal during assembly and achieve a small size and a miniaturized limit size.

Description

technical field [0001] The invention belongs to the technical field of acousto-optic instruments, and in particular relates to a crystal cooling block with a bridge structure, which is mainly used for small and miniaturized optical fiber coupling acousto-optic devices. Background technique [0002] Laser marking concentrates the laser on the surface of the marked object with extremely high energy density, so as to burn out exquisite patterns or characters. Compared with traditional ink printing, it has the advantages of environmental protection, high stability, low cost, high precision and easy integration with existing production lines. Compared with the current desktop laser marking machines, backpack and hand-held laser marking machines are the development trend of further miniaturization and intelligence of laser marking machines. They use fiber lasers as light sources, integrated modular design, and the processing speed is 2-3 times that of traditional laser marking, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/11
CPCG02F1/11
Inventor 朱勇岳世海殷学技朱玉伟徐冰赵寒冰黄恺平葛增伟
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI