GB/T 22453-2025 English PDF

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GB/T 22453-2025: Non-linear optical crystal devices measuring method for laser
Status: Valid

GB/T 22453: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22453-2025	459	Add to Cart	4 days	Non-linear optical crystal devices measuring method for laser	Valid
GB/T 22453-2008	209	Add to Cart	3 days	Non-linear optical borate crystal devices measuring method	Valid

Similar standards

GB/T 7247.1   GB/T 18490.1   GB/T 30117.2   GB/T 18462   GB/T 22452   

Basic data

Standard ID: GB/T 22453-2025 (GB/T22453-2025)
Description (Translated English): Non-linear optical crystal devices measuring method for laser
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L51
Classification of International Standard: 31.260
Word Count Estimation: 22,250
Date of Issue: 2025-04-25
Date of Implementation: 2025-08-01
Older Standard (superseded by this standard): GB/T 22453-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 22453-2025: Non-linear optical crystal devices measuring method for laser

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 31.260 CCSL51 National Standard of the People's Republic of China Replaces GB/T 22453-2008 Performance measurement method of nonlinear optical crystal element for laser Released on 2025-04-25 2025-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test conditions 1 4.1 Environmental conditions 1 4.2 Test instruments and measurement requirements 2 4.3 Laser safety requirements 2 5 Test Method 2 5.1 Laser performance 2 5.1.1 Second Harmonic Generation (SHG) Operating Wavelength 2 5.1.2 Critical phase matching angle of SHG at a specific wavelength 4 5.1.3 Absorption rate at specific wavelength 6 5.1.4 Optical uniformity 9 5.1.5 Wavefront distortion 9 5.1.6 Effective aperture 9 5.1.7 Anti-reflection coating residual reflectivity 9 5.1.8 Laser damage threshold 10 5.1.9 Transmittance wavelength range 10 5.1.10 Scattering Points 11 5.2 Environmental adaptability test method 12 5.2.1 High humidity resistance of the film layer 12 5.2.2 Thermal shock resistance of the film layer 12 6 Test report contents 12 Appendix A (Informative) Selmeier equation for typical nonlinear optical crystals13 Appendix B (Informative) Critical Phase Matching Angle Calculation Formula 14 Reference 15 Figure 1 Schematic diagram of SHG critical phase matching wavelength deviation principle Figure 2 Schematic diagram of SHG non-critical phase matching working wavelength range test principle Figure 3 Schematic diagram of negative uniaxial crystal phase matching Figure 4 Schematic diagram of phase matching of positive uniaxial crystal Figure 5 Schematic diagram of phase matching direction of biaxial crystal 4 Figure 6 Schematic diagram of frequency doubling conversion efficiency test 5 Figure 7 Absorption test principle diagram 8 Figure 8 Anti-reflection film residual reflectivity test frame diagram 10 Figure 9 Schematic diagram of light transmission wavelength range test principle 10 Figure 10 Scattering point test principle diagram 11

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 22453-2008 "Quality Test Methods for Borate Nonlinear Optical Single Crystal Components" and GB/T 22453- Compared with.2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Added "Terms and Definitions" (see Chapter 3); --- Deleted "Main test items" (see Chapter 3 of the.2008 edition); --- Changed the test environment requirements and relative humidity (see Chapter 4, Chapter 4 of the.2008 edition); --- Added "environmental requirements", "test equipment and measurement requirements" and "laser safety requirements" (see 4.1, 4.2, 4.3); --- Changed the test method classification from "physical properties" and "processing properties" to "laser properties", and changed "optical inhomogeneity" to “Optical uniformity” (see Chapter 5, Chapter 5 of the.2008 edition); ---Added SHG operating wavelength, specific wavelength SHG critical phase matching angle, light transmission wavelength range, and film layer's high humidity resistance, Test method for the film's resistance to temperature shock (see Chapter 5); --- Changed the test method for absorption at specific wavelengths (see Chapter 5, Chapter 5 of the.2008 edition); --- Added the test methods for specific wavelength absorbance. "Photothermal lens method" and "Spectrophotometer method" (see Chapter 5); --- Deleted the indicators such as dimensional tolerance, angular deviation, non-parallelism, non-flatness, non-perpendicularity, surface roughness, etc. (see the.2008 edition Chapter 5 of); --- Added test report (see Chapter 6). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee on Optical Radiation Safety and Laser Equipment Standardization (SAC/TC284). This document was drafted by. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Mindu Innovation Laboratory, Fujian Fujing Technology Co., Ltd., The Institute of Aerospace Information Innovation of the Chinese Academy of Sciences, the 26th Institute of China Electronics Technology Group Corporation, and the Jiangxi Provincial Inspection, Testing and Certification Institute Industry Product Inspection and Testing Institute, Beijing Leishengqiang Technology Co., Ltd., Chengdu Dongjun Laser Co., Ltd., China Electronics Technology Group The 11th Research Institute of the Company, the 209th Research Institute of China Ordnance Industry, Han's Laser Technology Industry Group Co., Ltd., China Metrology University. The main drafters of this document are. Zheng Yi, Wang Shuaihua, Huang Xin, Zheng Fakun, Wu Shaofan, Ma Yunfeng, Zhang Xing, Chen Wei, Ding Yuchong, He Tongbin, Zhang Ge, Zhu Jianhui, Zhou Shibin, Sun Yutong, Guo Li, Jia Kai, Qin Laishun, Li Bingxuan, Chen Min, Luo Xingmu, Chai Xiandan. The previous versions of this document and the documents it replaces are as follows. ---First published in.2008 as GB/T 22453-2008; ---This is the first revision. Performance measurement method of nonlinear optical crystal element for laser

1 Scope

This document specifies the test conditions for nonlinear optical crystal elements, describes the corresponding test methods, and specifies the content of the test report. Require. This document applies to low-temperature phase barium borate (β-BaB2O4, referred to as BBO), lithium triborate (LiB3O5, referred to as LBO), potassium dihydrogen phosphate (KH2PO4, referred to as KDP), potassium titanyl phosphate (KTiOPO4, referred to as KTP), lithium niobate (LiNbO3, referred to as LN), silver gallium sulfide The measurement activities of AgGaS2 (AGS) and potassium iodate (KIO3) are also used for reference in the measurement activities of other nonlinear optical crystal elements.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 7247.1 Safety of laser products Part 1.Equipment classification and requirements GB/T 7962.2 Test methods for colorless optical glass Part 2.Optical homogeneity Fizeau plane interferometry GB/T 11293 Terminology of solid laser materials GB/T 11297.1 Measurement method of wavefront distortion of laser rods GB/T 15313 Laser Terminology GB/T 16601.1-2017 Laser damage threshold test method for lasers and laser-related equipment Part 1.Definitions and general principles GB/T 16601.4 Laser damage threshold test method for lasers and laser-related equipment Part 4.Inspection, detection and measurement GB/T 22452-2025 General specification for borate nonlinear optical single crystal elements GB/T 26331-2010 Test method for environmental adaptability of optical thin film components GB/T 38245 Optics and optical instruments Lasers and laser-related equipment Laser optical components absorptivity test method GB/T 39131 Terminology of artificial lens materials GB 44703 General requirements for optical radiation safety

3 Terms and definitions

The terms and definitions defined in GB/T 15313, GB/T 11293, GB/T 39131 and GB/T 22452-2025 apply to this document.

4 Test conditions

4.1 Environmental conditions Unless otherwise specified, the test environment conditions shall meet the following requirements. a) Air pressure. 86kPa~106kPa; b) Cleanliness level. ISO 7; c) Ambient temperature. 23℃±2℃; d) Relative humidity. ≤60%; ......

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