Abstract
Today we are witnessing the rapid development of the laser industry. Laser sources with new wavelengths, higher powers and energies, different modes of operation (generation of laser pulses), as well as various applications in industry, medicine, environmental protection etc. are emerging. This requires the development of new physical methods and principles for accurate measurement of power, energy, and other parameters of laser sources. In different types of laser technological processes, accurate measurement of laser power is extremely important in terms of quality, repeatability, and validation of the process. In most cases, accurate laser power measurement is a difficult task, especially when working with high-power lasers or having to perform real-time measurements.The report analyses and systematizes the physical principles and methods on which existing laser measuring instruments are based. This research also aims to help researchers and technologists find and develop new approaches to solving this challenging measurement problem.
Highlights
In recent years, the laser industry has developed extremely fast, with more new laser sources with new wavelengths, higher power and energy, frequencies, and modes of operation
The result and the quality for each specific laser technology such as laser welding, cutting, marking, engraving, drilling, etc. They depend on many factors, including material properties, processing speed, type of shielded gas, laser parameters, including - laser power [1] [2]
Laser power or more precisely the power density together with the processing speed are two of the main factors determining the degree of energy absorbed in the material
Summary
The laser industry has developed extremely fast, with more new laser sources with new wavelengths, higher power and energy, frequencies, and modes of operation. All this is a prerequisite for the emergence of new applications in various fields of industrial production. The result and the quality for each specific laser technology such as laser welding, cutting, marking, engraving, drilling, etc. They depend on many factors, including material properties, processing speed, type of shielded gas, laser parameters, including - laser power [1] [2]. To characterize in a qualitative aspect a technological operation for qualification, it is necessary to specify/quantify the power delivered by the laser in the processing area
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