Method and device for controlling femtosecond lasers with multiple wavelengths
A femtosecond laser and wavelength technology, applied in the field of femtosecond lasers, can solve problems such as affecting the operation of femtosecond lasers, and achieve the effect of preventing use accidents
Active Publication Date: 2022-07-05
南京漫鱼医疗技术有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In the process of realizing the above invention, the inventors found that there are at least the following problems in the prior art: femtosecond lasers need to work with high precision, especially the easily damaged ultraviolet harmonic separator, within the time limit, if the ultraviolet harmonic separator The loss value exceeds the threshold, which will seriously affect the work of the femtosecond laser
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
[0047] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0048]The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to Describe a particular order or sequence. It is to be understood that the data so used ma...
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 provides a control method and device for femtosecond lasers with multiple wavelengths, and relates to femtosecond laser technology. According to a duration prediction model, a preset limit damage value, the interval duration, the interval between the previous time point and the current time point are determined. The beam quality damage value obtained is processed to generate a preliminary duration; the actual usage duration and the preset usage duration of the harmonic separator within the interval duration are obtained, and the actual usage duration and the preset usage duration are determined according to the duration offset model. Assuming that the duration is used for processing, a duration offset value is generated; the preliminary duration is subjected to offset processing based on the duration offset value to generate the remaining duration of the harmonic separator; based on the remaining duration of the harmonic separator To control the running time of the femtosecond laser, the working state of the femtosecond laser can be judged through the harmonic separator, and the operation of the femtosecond laser can be effectively controlled.
Description
technical field [0001] The invention relates to femtosecond laser technology, in particular to a control method and device for femtosecond lasers with multiple wavelengths. Background technique [0002] Ultraviolet femtosecond lasers are generally generated by frequency doubling outside the cavity, and have the characteristics of high peak power of femtosecond lasers and short wavelengths of ultraviolet light. Therefore, the internal optical components of the laser are very easy to damage, thus affecting the life of the femtosecond laser. Ultraviolet Harmonic Separator is an optical component that is easily damaged in lasers, and it is a beam splitter coated with a beam splitter film that reflects ultraviolet light and transmits other light. [0003] In the prior art, whether the femtosecond laser can continue to be used is usually judged by the running time of the femtosecond laser, and if the time limit is not reached, the femtosecond laser is controlled to work continuous...
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): H01S3/10H01S3/00H01S5/00H01S5/06
CPCH01S3/0014H01S3/10H01S5/06H01S5/0021
Inventor 黄焱坤
Owner 南京漫鱼医疗技术有限公司