Method and system for measuring pulse laser energy
A technology of laser energy and pulse measurement, applied in the field of optics, can solve problems such as high cost and cumbersome system design
Active Publication Date: 2014-03-12
重庆中科摇橹船信息科技有限公司
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Laser energy is an important basic indicator of pulsed lasers, especially for high-power laser systems, it is necessary to know exactly how much pulse energy it outputs, and at the same time it is necessary to know the intensity distribution of the laser light field. The parameter measurement components are generally equipped with an energy meter for energy measurement and a scientific-grade CCD device for testing the uniformity of the light field. Analysis and comparison of the measurement nature of the two types of devices is to measure the intensity of the light field, and the system design is cumbersome. high cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The invention provides a method for measuring pulsed laser energy, the method comprising the following steps:
[0032] 1) Establish the conversion relationship between the grayscale of the intensity distribution of the known laser light field and the laser energy:
[0033] 1.1) Input the known laser energy into scientific grade CCD after passing through the integrating sphere;
[0034] 1.2) the grayscale of the intensity distribution of the light field of the known laser in the input step 1.1) through the scientific grade CCD;
[0035] 1.3) A relationship curve is established according to the known laser energy and the gray scale of the intensity distribution of the laser light field.
[0036] 1.4) Repeat steps 1.1) to 1.3);
[0037] 1.5) Fitting and correcting the established relationship curve of the known laser energy and the intensity distribution of the laser light field using the least squares method.
[0038] 2) After the laser to be measured passes through th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method and system for measuring pulse laser energy by using a scientific-grade CCD (Charge-coupled Device). The method comprises the following steps: 1) setting up a conversion relationship between the gray level of strength distribution of a known laser field and laser energy; 2) acquiring the gray level of the strength distribution of a laser field to be measured; and 3) converting the gray level of the strength distribution of the laser field to be measured into laser energy to be measured according to the obtained the conversion relationship in the step 1). The invention provides the method and system for measuring the pulse laser energy, which have the advantages of high measurement accuracy, simplified system and low cost.
Description
technical field [0001] The invention belongs to the field of optics, and relates to a method for measuring laser energy, in particular to a method and system for measuring pulsed laser energy by using a scientific grade CCD. Background technique [0002] Laser energy is an important basic indicator of pulsed lasers, especially for high-power laser systems, it is necessary to know exactly how much pulse energy it outputs, and at the same time it is necessary to know the intensity distribution of the laser light field. The parameter measurement components are generally equipped with an energy meter for energy measurement and a scientific-grade CCD device for testing the uniformity of the light field. Analysis and comparison of the measurement nature of the two types of devices is to measure the intensity of the light field, and the system design is cumbersome. Costs remain high. Contents of the invention [0003] In order to solve the above-mentioned technical problems in t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00
Inventor 达争尚田新锋董晓娜刘力孙策
Owner 重庆中科摇橹船信息科技有限公司