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Method for processing ultraviolet glued crystal

A technology of ultraviolet glue and crystal, which is applied in crystal growth, chemical instruments and methods, metal material coating technology, etc., can solve the problems of cumbersome steps and difficult control of coating, achieve clear measurement imaging, improve work efficiency, and improve production efficiency Effect

Inactive Publication Date: 2013-09-18
青岛海泰光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing process steps are cumbersome, and the coating is difficult to control

Method used

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Embodiment

[0030] Cut potassium titanyl phosphate (KTP) crystal blanks and neodymium-doped yttrium vanadate (ND:YVO4) crystal blanks into 10×10mm square blanks with an internal cutting machine, and the cutting angle of KTP crystals is (90°, 23.3° ), the thickness is 2.5mm, the cutting angle of ND:YVO4 crystal is (90°, 0°), the thickness is 1mm, and the cutting angle is determined by X-ray diffractometer. After the crystal is cut, the surface is trimmed with emery on the grinding machine, and the cerium oxide polishing powder is used for rough polishing on the polishing machine, and then the crystal is bonded to the light glue board by using light glue. The light glue board requires flatness λ / 10. Parallelism within 2 seconds. Then use diamond powder for fine polishing, requiring the flatness of the crystal substrate to reach λ / 6, the parallelism within 5 seconds, and the smoothness of 40 / 20. After using organic solvents (acetone first and then ethanol) to remove wax and oil, and then t...

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PUM

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Abstract

The invention discloses a method for processing an ultraviolet glued crystal. The method comprises the following steps of polishing a potassium titanyl phosphate crystal and a neodymium-doped yttrium vanadate crystal, and performing first cleaning; dipping ultraviolet glue on the polished surface of the neodymium-doped yttrium vanadate crystal, uniformly coating the ultraviolet glue on the polished surface of the polishing potassium titanyl phosphate crystal in a contact way; putting onto an optical comparator, adjusting the emission images of the potassium titanyl phosphate crystal and the neodymium-doped yttrium vanadate crystal till superposition; irradiating with an ultraviolet lamp for curing initially; deeply curing; performing second cleaning; coating by adopting a low-temperature cold coating ion sputtering process; testing a coating index after coating; performing third cleaning after qualification; and performing primary bright dipping test, cutting, performing fourth cleaning, assembling, fixing, and packing and sealing after performance testing is qualified. According to the method disclosed by the invention, ultraviolet gluing and a low-temperature plasma coating technology are combined, so that the conventional production process is overturned, the processing period is shortened, the processing efficiency is increased, and the improvement on the product quality is facilitated.

Description

technical field [0001] The invention belongs to the technical field of crystal processing, and in particular relates to a method for processing ultraviolet glued crystals. Background technique [0002] UV-cemented crystals are the most economical solution for generating low-power green light. The neodymium-doped yttrium vanadate (ND:YVO4) crystal and the potassium titanyl phosphate (KTP) crystal are glued together by UV glue, and the transparent surface of the ND:YVO4 end is coated with a high reflection film for 1064nm and 532nm and a high transparency for 808nm , Coating a thin film with high reflection to 1064nm and high transparency to 532nm on the light-passing surface of the KTP end, a very simple laser cavity can be formed, and 808nm LD pump can generate green light. The usual processing method is that after the crystal blank is cut, it is ground and polished to the required precision, and then coated on one end surface of the crystal respectively, then glued and cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16C30B33/06C23C14/34
Inventor 王世武
Owner 青岛海泰光电技术有限公司
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