State primary special standard for the unit of polarization mode dispersion in optical fiber GET 185-2025

Different methods and means of polarization mode dispersion unit reproducing and transmitting in optical fiber for a wide spectral range are considered. The obtained research results made it possible to improve the State primary special standard of the unit of polarization mode dispersion in optical fiber GET 185-2010 and to approve the State primary special standard of the unit of polarization mode dispersion in optical fiber GET 185-2025, which provides reproduction and transmission of the specifi ed unit by polarimetric and interferometric methods in the required spectral range of 1260-1650 nm. A method for transmitting small values (less than 5 ps) of the polarization mode dispersion unit from GET 185-2025 to high-precision polarization mode dispersion interferometric measuring instruments with broadband optical radiation sources is proposed. The development results of optical spectrum analysis set-up are presented. The set-up is included in the GET 185-2025 and it is used for characterization of broadband optical radiation sources used in high-precision polarization mode dispersion analyzers. 

The etalon international comparisons result in terms of the polarimetric method of the unit reproducing are presented. The updated composition and metrological characteristics of the GET 185-2025 are given. GET 185-2025 metrologically provides fi ber optics in both manufacturing and scientifi c and technical fields.

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