State 1st class working standard for units of wavelength in the range from 1.25 to 20.00 μm and wavenumber in the range from 500 to 8000 cm–1

Abstract

The 1st class Working Standard for units of wavelength in the range from 1.25 to 20.0 μm and wavenumber in the range from 500 to 8000 cm–1 developed in VNIIOFI based on Fourier-Transform Infrared Spectrometer is presented. Dissemination of wavelength and wavenumber units to the 1st class Working Standard is carrying out from FTIR-spectrometer measurements of two peaks of lasers from the State primary special standard of units of signal propagation length and duration in the optical fiber of the average power, attenuation and wavelength for optical fiber communication systems and information transmission GET 170-2011. Spectral scale realization by the Working Standard is carrying by interferogram of internal He–Ne-laser during spectral intensity measurements of internal source. Dissemination for units of wavelength in the range from 1.25 to 20.00 μm and wavenumber in the range from 500 to 8000 cm–1 is provided by corresponding correction factor to measurement results. The developed accuracy chart that set traceability for wavelength and wavenumber measurement instruments to GET 170-2011 is presented.