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A bridge-type crystal heat sink

A heat sink and crystal technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of affecting the coupling accuracy of optical fibers, upturning of acousto-optic vibrators, and increasing size

Active Publication Date: 2022-07-12
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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  • A bridge-type crystal heat sink
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Based on TeO 2 The crystal's 100MHz acousto-optic oscillator is commonly used with a height of 2.7mm and a length of 16mm. The height of the bridge piers of the designed bridge-type crystal heat sink is 2.8mm, and the distance between the two bridge piers is 18mm. It is fixed with M2 thread, and the through hole of the pier is designed to be 2.5mm. The total length of the heat sink is 24mm, the total width is 10mm, and the total height is 10mm.

[0053] The crystal heat sink is bonded to the acousto-optical vibrator with thermally conductive glue, and then assembled in the shell of the acousto-optical modulator. After matching the circuit, a 100MHz acousto-optical modulator is formed. In the following fiber coupling, by adjusting the two M2 screws in the through hole of the bridge pier, the relative position of the heat sink in the housing is changed to compensate for the assembly error in the actual production process, realize the fine adjustment of the optical path,...

Embodiment 2

[0055] Based on TeO 2 The crystal's 120MHz acousto-optic oscillator is commonly used with a height of 2.5mm and a length of 12mm. The pier height of the designed bridge crystal heat sink is 2.6mm, and the distance between the two piers is 15mm. It is fixed with M2 thread, and the through hole of the pier is designed to be 2.5mm. The total length of the heat sink is 20mm, the total width is 10mm, and the total height is 10mm.

[0056] The crystal heat sink is bonded to the acousto-optical vibrator with thermally conductive glue, and then assembled in the shell of the acousto-optical modulator. After matching the circuit, a 120MHz acousto-optical 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 conclusion, the present invention is a crystal heat sink with a bridge struct...

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Abstract

The invention provides a bridge-type crystal heat sink. It comprises: a main body part with an optical path area extending along its length; a bridge pier part protruding upward from both sides of the middle and rear ends of the optical path area of ​​the main body part; through holes are respectively provided in the bridge pier part. It can effectively avoid crystal cracking in the assembly process, and achieve the ultimate size of miniaturization and miniaturization.

Description

technical field [0001] The invention belongs to the technical field of acousto-optic instruments, and in particular relates to a crystal heat dissipation block with a bridge structure, which is mainly used for small and miniaturized fiber-coupled acousto-optic devices. Background technique [0002] Laser marking concentrates the laser on the surface of the marked object with a very high energy density, thereby engraving delicate patterns or characters. Compared with traditional ink printing, it has the advantages of green environmental protection, high stability, low cost, high precision and easy integration with existing production lines. Compared with the current desktop laser marking machines, backpack-type 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 and have an integrated modular design. The processing speed is 2-3 times of traditional laser m...

Claims

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Application Information

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Patent Type & Authority Patents(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