GB/T 16601.4-2017 English PDF

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GB/T 16601.4-2017: Lasers and laser-related equipment -- Test methods for laser-induced damage threshold -- Part 4: Inspection, detection and measurement
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 16601.4-2017	439	Add to Cart	5 days	Lasers and laser-related equipment -- Test methods for laser-induced damage threshold -- Part 4: Inspection, detection and measurement	Valid

Similar standards

GB/T 7247.1   GB/T 18490.1   GB/T 30117.2   GB/T 18462   GB/T 16601.3   GB/T 16601.1   

Basic data

Standard ID: GB/T 16601.4-2017 (GB/T16601.4-2017)
Description (Translated English): Lasers and laser-related equipment -- Test methods for laser-induced damage threshold -- Part 4: Inspection, detection and measurement
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L51
Classification of International Standard: 31.260
Word Count Estimation: 22,258
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 16601.4-2017: Lasers and laser-related equipment -- Test methods for laser-induced damage threshold -- Part 4: Inspection, detection and measurement

---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.
Lasers and laser-related equipment-Test methods for laser-induced damage threshold-Part 4. Inspection, detection and measurement ICS 31.260 L51 National Standards of People's Republic of China Laser and laser related equipment laser damage threshold Test methods - Part 4. Inspection, detection and measurement threshold-Part 4.Inspection,detectionandmeasurement (ISO /T R21254-4.2011, MOD) Released on.2017-12-29 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 damage detection method 1 4.1 Overview 1 4.2 Summary of damage detection methods 1 4.3 Sample Radiation Detection 2 4.3.1 Scattering detection 2 4.3.2 Plasma and thermal radiation detection 4 4.3.3 Fluorescence detection 4 4.4 Detection and imaging methods for reflectance/transmittance changes 5 4.4.1 On-line detection of reflectance/transmittance changes 5 4.4.2 Online Microscopy 6 4.5 Photothermal detection 7 4.5.1 Overview 7 4.5.2 Photothermal deflection and surface thermal lens 7 4.5.3 Vision effect 8 4.6 Transient Pressure Sensing 9 5 Inspection methods after laser testing 10 5.1 Overview 10 5.2 Nomaschi microscope 10 5.3 Microscopic imaging comparator method 11 5.4 Laser scanning microscopy 12 5.5 Surveying and Mapping Technology 12 5.6 Electron Microscopy 14 5.7 Atomic Force Microscopy 14 5.8 Confocal microscopy 15 Reference 17

Foreword

GB/T 16601 "Laser and laser related equipment laser damage threshold test method", divided into the following four parts. --- Part 1. Definitions and general principles; --- Part 2. Threshold determination; --- Part 3. Laser power (energy) withstandability is convinced; --- Part 4. Inspection, detection and measurement. This part is the fourth part of GB/T 16601. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the redrafting method to modify the laser damage threshold for lasers and laser-related equipment using ISO /T R21254-4.2011 Test Methods Part 4. Inspection, Detection and Measurement. The technical differences between this part and ISO /T R21254-4.2011 and their reasons are as follows. ---About the normative reference documents, this part has made technical adjustments to adapt to China's technical conditions, adjustments The situation is reflected in Chapter 2, “Regulatory References”, and the specific adjustments are as follows. ● Replaced ISO 11145 with GB/T 15313-2008 modified to adopt international standards; ● Replaced ISO 21254-1 with GB/T 16601.1-2017 modified to adopt international standards; Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part was proposed by China Ordnance Industry Group Corporation. This part is under the jurisdiction of the National Optical and Photonics Standardization Technical Committee (SAC/TC103). This section drafted by. State-owned Fifth Third Eighth Factory, China Ordnance Industry Standardization Institute, Southwest Institute of Technical Physics. The main drafters of this section. Cui Ying, Chen Yahua, Wei Xiaoyu, Xiong Bo, Li Yuna, Li Kaihua, Ye Dahua, Tu Jianjun.

Introduction

Laser damage threshold detection procedures often require techniques that are sensitive to surface inspection and damage detection. Typical detection In the protocol, each sample was examined microscopically prior to testing to assess its surface quality and grade of disease. S to 1 damage test Various online monitoring schemes can be applied during the irradiation of the sample. Examples of such methods include detection of scattered light in a sample test area, acquisition of sample plasma radiation, or a photothermal detection scheme. In most cases, the detection system is directly connected to the laser source to quickly interrupt laser irradiation of the sample after the damage has occurred. this is okay Avoid catastrophic damage to the sample and accurately determine the number of laser pulses at the time the damage first occurred. And tested continuously In the process, the direct information of the damage state can be processed to determine the optimal value of the subsequent test laser energy, and the uncertainty of the detection is reduced. For the same reason, complex detection schemes based on direct imaging and online image processing are often used in 1-to-1 damage testing equipment. After the sample is irradiated with laser pulses, appropriate inspection techniques are used to identify the damage points and obtain information on the mechanism of the damage. In order to obtain Accurate damage thresholds are necessary for testing test points because this is the ultimate and most sensitive assessment of the damage state. This section describes the inspection techniques for optical surfaces before and after damage testing and the damage detection techniques integrated in the detection equipment. Headquarters The damage detection method described by the sub-division is an example of a damage test solution that has been tested and often applied to detection equipment. This section The application of other solutions that can be used for optical component damage detection or inspection is not excluded. Laser and laser related equipment laser damage threshold Test methods - Part 4. Inspection, detection and measurement

1 Scope

This part of GB/T 16601 specifies methods for inspection, detection and measurement of laser damage on the surface and inside of optical components. This section applies to the inspection, detection and measurement of laser damage on the surface and internal of optical components.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 15313-2008 Laser terminology (ISO 11145.2006, MOD) GB/T 16601.1-2017 Laser and laser related equipment - Test methods - Part 1 . Definitions and general (ISO 21254-1.2011, MOD)

3 Terms and definitions

The terms and definitions defined in GB/T 15313-2008 and GB/T 16601.1-2017 apply to this document.

4 damage detection method

4.1 Overview For damage detection methods involving multi-pulse irradiation of a single test point, a suitable online damage detection system is required to follow The provisions of GB/T 16601.1-2017 evaluate the state of the surface of the optical component under test. Recommended online damage detection system should have A device that cuts off subsequent pulses and stops pulse counting after the damage is detected. Online damage detection can use any suitable detection principle. Techniques for online damage detection include online microscopy For sniffer, photoacoustic and photothermal detection, and scatter detection, scatter detection can use laser radiation that damages the laser, or a separate laser source can be used. The online damage detection methods described in this section are based on sample radiation detection, sample specific properties detection and photothermal detection. In addition, For the example of non-optical online detection methods, the detection technique based on transient pressure sensing is also briefly described. The detection technology described in this section is public Develop the scheme in the table literature as an example. The choice of these examples is only for the purpose of describing the detection scheme, rather than indicating a preference or Recommend these programs. 4.2 Summary of damage detection methods Table 1 summarizes the main features of the online damage detection method described in this section. In addition to the basic principles, it also takes into account the detection method specific Advantages and disadvantages. ......

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