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Reference System for Reproducing, Storing, and Transmitting a Two-Dimensional Spatial Distribution of a Unit of Refractive Index for Solids

  • OPTICO-PHYSICAL MEASUREMENTS
  • Published:
Measurement Techniques Aims and scope

The issues of metrological support of the instruments for measuring a two-dimensional spatial distribution (profile) of a unit of refractive index for solids are considered. A reference system has been developed, which is included into the State Primary Refractive Index Standard (GET 138-2021). The composition, principle of operation, and main metrological characteristics of the reference system, based on a digital interferometer for measuring a two-dimensional spatial distribution (profile) of the refractive index for thin sections of the preforms of graded-index glass fibers, are presented. The reference system according to GET 138-2021 provides the uniformity of measurements for the instruments used to measure the refractive index profile—so-called optical analyzers of preforms of the graded-index and optical glass fibers. The results of experimental studies of GET 138-2021 in terms of reproducing a two-dimensional spatial distribution of the refractive index unit are presented.

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Notes

  1. Order No. 88 of the Federal Agency for Technical Regulation and Metrology "On Approval of the State Primary Refractive Index Standard" dated February 5, 2021.

  2. State Primary Refractive Index Standard (GET 138-2021). URL: https://www.vniiofi.ru/depart/m44/get138-2021. html?ysclid=l6m0lw4ncs378676549 (access date: August 09, 2022).

  3. GOST 13739-783. Immersion oil for microscopy. Specifications. Testing methods.

  4. Order No. 232 of the Ministry of Industry and Trade of Russia "On Approval of the State Verification Scheme for the Refractive Index Measurement Instruments" dated February 01, 2022.

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Acknowledgments

The authors express gratitude to V. S. Brunov, a researcher at the Special Glass Laboratory of the NTO IRE-Polyus (Fryazino, Moscow region), for fabricating thin sections of graded-index fiber preforms.

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Authors and Affiliations

  1. All-Russian Research Institute for Optical and Physical Measurements, Moscow, Russia

    G. N. Vishnyakov

  2. Bauman Moscow State Technical University, Moscow, Russia

    V. L. Minaev

  3. HSE University, Moscow, Russia

    S. S. Bochkareva

Authors
  1. G. N. Vishnyakov
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  2. V. L. Minaev
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  3. S. S. Bochkareva
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Corresponding author

Correspondence to G. N. Vishnyakov.

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Translated from Izmeritel'naya Tekhnika, No. 10, pp. 26–30, October, 2022.

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Vishnyakov, G.N., Minaev, V.L. & Bochkareva, S.S. Reference System for Reproducing, Storing, and Transmitting a Two-Dimensional Spatial Distribution of a Unit of Refractive Index for Solids. Meas Tech 65, 729–733 (2023). https://doi.org/10.1007/s11018-023-02145-5

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  • DOI: https://doi.org/10.1007/s11018-023-02145-5

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