Traceability of energy measurements laser beam parameters

Abstract

A conceptual approach to traceability of measurements of the energy (power) of a laser beam when calibrating measuring instruments to standards is formulated, algorithms for solving traceability problems are developed, and technical implementations of these solutions are presented. It is shown that the use of a measuring attenuator is an integral part of the scheme for constructing a standard that provides traceability of measurements of the energy (power) of the laser beam. The functioning of the standard with sequential, stepwise and parallel schemes of its construction is considered, which ensures traceability to the State secondary standard of the unit of energy of pulsed laser radiation GVE 2.1.ZZA.0095.2017 and the State primary standard of the unit of average power of laser radiation GET 28-2016. The features of the construction of measuring dividers for the calibration of measuring instruments of low and high levels of energy (power) have been determined. Algorithms for complete calibration of measuring instruments, which have an advantage over element-by-element calibration, are presented.