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Combined function crystal for producing green light and manufacturing method thereof

A manufacturing method and technology of laser crystals, which are applied to lasers, laser components, active dielectric materials, etc., can solve the problems of low output laser power and achieve good optical performance, high temperature stability, and high consistency.

Active Publication Date: 2016-08-17
马玉珂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also the problem of low output laser power

Method used

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  • Combined function crystal for producing green light and manufacturing method thereof
  • Combined function crystal for producing green light and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The invention discloses a combined functional crystal for generating green light, which is used in a green laser, and is specifically produced by the following production method:

[0041] Cut Nd:YVO with an internal circle cutting machine 4 (90°, 0°) crystals were cut into blanks with a thickness of 1mm, and YCOB crystals (113±1°, 36.5±1°) were cut into blanks with a thickness of 3mm. The cutting direction is determined by the X-ray orientation instrument. The blank area can be determined according to the available actual crystal size, which can be 10mm´10mm, 20mm´20mm, 30mm´30mm or other sizes to maximize the utilization of the crystal.

[0042] Then the cut Nd:YVO 4 and YCOB blanks were ground on a double-sided grinding machine, and the abrasive was diamond powder with a particle size of 10 microns. After the grinding is completed, the crystal is further polished on a double-sided polishing machine, the polishing pad is a soft cloth pad, and the polishing powder is...

Embodiment 2

[0051] The invention discloses a combined functional crystal for generating green light, which is used in a green laser, and is specifically produced by the following production method:

[0052] Cut Nd:YVO with an internal circle cutting machine 4 (90°, 0°) crystals were cut into blanks with a thickness of 1mm, and GDCOB crystals (113±1°, 36.5±1°) were cut into blanks with a thickness of 3mm. The cutting direction is determined by the X-ray orientation instrument. The blank area can be determined according to the available actual crystal size, which can be 10mm´10mm, 20mm´20mm, 30mm´30mm or other sizes to maximize the utilization of the crystal.

[0053] Then the cut Nd:YVO 4 GDCOB blanks are ground on a double-sided grinding machine, and the abrasive is diamond powder with a particle size of 10 microns. After the grinding is completed, the crystal is further polished on a double-sided polishing machine, the polishing pad is a soft cloth pad, and the polishing powder is cer...

Embodiment 3

[0062] The invention discloses a combined functional crystal for generating green light, which is used in a green laser, and is specifically produced by the following production method:

[0063] Cut Nd:YVO with an internal circle cutting machine 4 (90°, 0°) crystals were cut into blanks with a thickness of 1mm, and GDYCOB crystals (113±1°, 36.5±1°) were cut into blanks with a thickness of 3mm. The cutting direction is determined by the X-ray orientation instrument. The blank area can be determined according to the available actual crystal size, which can be 10mm´10mm, 20mm´20mm, 30mm´30mm or other sizes to maximize the utilization of the crystal.

[0064] Then the cut Nd:YVO 4 and GDYCOB blanks are ground on a double-sided grinding machine, and the abrasive is diamond powder with a particle size of 10 microns. After the grinding is completed, the crystal is further polished on a double-sided polishing machine, the polishing pad is a soft cloth pad, and the polishing powder ...

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Abstract

The invention discloses a combined function crystal for producing green light, which is applied to a green light laser. The combined function crystal comprises a laser crystal and a non-linear crystal, wherein the laser crystal and the non-linear crystal are bonded by curing through an ultraviolet adhesive layer; the laser crystal is a Nd:YVO4 crystal; the non-linear crystal is a YCOB crystal, a GdCOB crystal or a GdYCOB crystal; the first end face of the laser crystal is plated with an 808nm anti-reflection film and a 1064nm high-reflective film; the second end face of the laser crystal is plated with an 808nm high-reflective film and a 1064nm anti-reflection film; the first end face of the non-linear crystal is plated with a 1064nm anti-reflection film and a 532nm high-reflective film; the second end face of the nonlinear crystal is plated with a 1064nm high-reflective film and a 532nm anti-reflection film; the ultraviolet adhesive layer is arranged between the second end face of the laser crystal and the first end face of the non-linear crystal. The combined function crystal for producing the green light has the characteristics of high temperature stability, high optical performance, superior quality consistence and high production efficiency.

Description

technical field [0001] The invention relates to the technical field of crystal processing, in particular to a combined function crystal for generating green light and a manufacturing method thereof. Background technique [0002] Combining functional crystals with green light is a low-cost technical approach to produce low-power green light. In the past, combined crystals usually consisted of laser crystal Nd:YVO4 and nonlinear optical crystal KTiOPO4 (KTP). However, due to the narrow temperature tolerance bandwidth of the KTP crystal, the green laser made of Nd:YVO4+KTP has a phenomenon of phase matching angle drift after a certain period of use, resulting in a weakening of the output light power of the laser. Therefore, in the field of low-power green laser applications, it is expected to use combined crystals with higher temperature stability. For this reason, we disclose a new type of green light combination function crystal, which is composed of laser crystal Nd:YVO4 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/109
CPCH01S3/109H01S3/1673
Inventor 马玉珂
Owner 马玉珂