Luminous flux
Optical measurement
Frequency analyzers
Wave properties and phenomena
Computer peripheral equipment
Electrical wave measurement
Calibration
Optical instruments
Display devices (computers)
Wave analyzers
Fibre optic connectors
Spectrum analyzers
Link: BS EN IEC 62129-3:2019 Calibration of wavelength/optical frequency measurement instruments Optical frequency meters internally referenced to a frequency comb
Source: BSI Standards
