Performance test of laser power meter verification system

Aimed at the requirements of laser equipment, a verification system of laser power meter is established. The system can realize the verification and calibration of laser power meter with wavelength of 532nm, 633nm, 1064nm and power measurement range of 0.1mW to 20W. The relative expanded uncertainty of the system reaches 2% (k=2). The composition and working principle of the system are described in detail. The test methods and measurement data are given for the main parameters of system performance test, such as power stability of laser, power monitoring ratio stability of laser power beam splitter monitoring and correcting device, correction factor of standard laser power meter. After the system test, the performance of the laser power meter verification system has been more perfectly examined.