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GB/T 41572-2022: Measurement methods for main parameters of pulsed laser in time-domain
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Measurement methods for main parameters of pulsed laser in time-domain
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GB/T 41572-2022
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Basic data | Standard ID | GB/T 41572-2022 (GB/T41572-2022) | | Description (Translated English) | Measurement methods for main parameters of pulsed laser in time-domain | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L51 | | Word Count Estimation | 34,316 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41572-2022: Measurement methods for main parameters of pulsed laser in time-domain---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.
Measurement methods for main parameters of pulsed laser in time-domain
ICS 31.260
CCSL51
National Standards of People's Republic of China
Measurement method of main parameters of pulsed laser in time domain
Published on 2022-07-11
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Main parameter characteristics 3
4.1 Overview 3
4.2 Pulse time characteristics 3
4.3 Pulse Spectral Characteristics 3
5 Measurement Conditions 4
5.1 Basic requirements 4
5.2 Requirements for the normal operation of the laser under test 4
5.3 Safety Protection 4
5.4 Measurement preparation 4
6 Measurement method 4
6.1 Rise/Fall Time 4
6.2 Pulse width 6
6.3 Pulse repetition frequency 13
6.4 Time Jitter of Electrical and Optical Signals 14
6.5 Optical Signal Time Jitter 15
Appendix A (Informative) Pulse Width Measurement Method 18
Appendix B (informative) Ultrashort pulse measurement method 20
Appendix C (normative) Common Deconvolution Factors 26
Appendix D (Informative) Time Jitter Measurement Method 27
Reference 29
Figure 1 Block diagram of a device for measuring rise/fall times5
Figure 2 Schematic diagram of measuring rise/fall time 5
Fig.3 Schematic diagram of pulse width measurement by photodetector method7
Figure 4 Schematic diagram of the principle of measuring pulse width by autocorrelation method 8
Figure 5 Block diagram of the device for measuring pulse width by autocorrelation method 8
Fig.6 Schematic diagram of interference autocorrelation curve9
Fig.7 Schematic diagram of intensity autocorrelation curve without background9
Figure 8 Block diagram of FROG measuring pulse width equipment 10
Figure 9 FROG measurement pulse width example 11
Figure 10 SPIDER measurement pulse width equipment block diagram 12
Figure 11 Example of femtosecond laser interference spectrum signal 12
Figure 12 Example of SPIDER measuring femtosecond laser pulse width 13
Figure 13 Block diagram of pulse repetition frequency measurement equipment 13
Figure 14 Example of recorded optical pulse period 14
Figure 15 Block diagram of time jitter measurement equipment for electrical and optical signals 14
Figure 16 Example of electrical signal and optical signal delay measurement data 15
Figure 17 Block diagram of optical signal time jitter measurement equipment 16
Figure 18 Example of high harmonic RF spectrum measurement 17
Figure 19 Spectrum Example 17 of the 19th Harmonic
Figure A.1 Schematic diagram of the optical path of the photodetector method equipment 18
Figure B.1 Schematic diagram of the optical path of the intensity autocorrelation method (non-collinear) device 21
Figure B.2 Schematic diagram of the optical path of the interference autocorrelation method equipment 22
Figure B.3 Pulse autocorrelation curve with and without chirp 22
Figure B.4 Schematic diagram of the optical path of the FROG equipment 23
Figure B.5 Schematic diagram of the optical path of the SPIDER device 25
Figure D.1 Noise power spectrum 27
Figure D.2 Schematic diagram of high harmonic radio frequency spectrum analysis method 28
Table C.1 Autocorrelation deconvolution factor k=τac/τH 26
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 of Standardization Documents"
drafted.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Optical Radiation Safety and Laser Equipment Standardization Technical Committee (SAC/TC284).
This document is drafted by. Institute of Aerospace Information Innovation, Chinese Academy of Sciences, Chinese Academy of Metrology, Peking University, Chinese Academy of Sciences
Institute of Science, Wuhan Huagong Laser Engineering Co., Ltd., Huagong Farley Lecce Welding System Engineering Co., Ltd., Suzhou Pavo Laser Technology Co., Ltd.
Co., Ltd., Zhongshan Indium Laser Technology Co., Ltd., Wuhan Raycus Fiber Laser Technology Co., Ltd., Shandong Huaguang Optoelectronics Co., Ltd.
Company, Han's Laser Technology Industry Co., Ltd., Shenzhen Dingxin Technology Co., Ltd.
The main drafters of this document. Ma Yunfeng, Fan Zhongwei, Wu Aiping, Deng Yuqiang, Zhang Zhigang, Zhao Peng, Cheng Wang, Wang Zhaohua, Li Ting, Zhou Xiaozhuang,
Guo Guangyan, Bai Fang, Wang Xianzhi, Sun Qing, Shi Chaohui, Li Ying, Yan Dapeng, Xiao Chengfeng, Zeng Lixia, Gao Fengxiang.
Measurement method of main parameters of pulsed laser in time domain
1 Scope
This document defines the terms and definitions of the main parameters of the pulsed laser in the time domain, describes the characteristics of its main parameters, specifies the measurement conditions and measurements.
quantitative method.
This document is applicable to the measurement of main parameters in the time domain of pulsed lasers whose duration is in the range of 3fs~0.25s, and the pulse width is more than 0.25s
The laser reference is performed.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB 7247.1 Safety of Laser Products Part 1.Equipment Classification and Requirements
GB/T 15313 Laser Terminology
GB/T 15490 General Specification for Solid State Lasers
JB/T 12632 Fiber Laser
JJF1493-2014 Ultrashort optical pulse autocorrelator calibration specification
ISO 11145.2018 Optical and photonics lasers and laser equipment vocabulary and symbols (Opticsandphotonics-Lasers
ISO 15367-1.2003 Lasers and laser-related equipment—Test methods for the determination of the wavefront shape of laser beams—Part 1.Terminology and
3 Terms and Definitions
GB/T 15313, JJF1493-2014, ISO 11145.2018 and ISO 15367-1.2003 and the following terms and definitions
applies to this document.
3.1
pulsed laser pulsedlaser
Laser light radiated in the form of a single pulse or a sequence of pulses with a pulse duration of less than 0.25s.
[Source. ISO 11145.2018, 3.19.3]
3.2
rising edge of the pulse
Pulse laser duration waveform rising curve.
3.3
falling edge of the pulse
Pulse laser duration waveform drop curve.
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