A. Yu. Igumenov, I. V. Mel’nikov, A. A. Afanasiev, S. S. Popova, S. N. Lukinykh, I. A. Tambasov, “Reflectometric temperature measurement using a “single-mode-multimode-single-mode” fiber optic structure”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2022, Volume 48, Issue 17,Pages <nobr>17–19</nobr>

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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2022 Volume 48, Issue 17, Pages 17–19 (Mi pjtf7388)

Reflectometric temperature measurement using a “single-mode-multimode-single-mode” fiber optic structure

A. Yu. Igumenov^ab, I. V. Mel’nikov^ac, A. A. Afanasiev^a, S. S. Popova^a, S. N. Lukinykh^bd, I. A. Tambasov^ef

^a Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^b "T8" LLC, Moscow, Russia
^c Institute of Dynamics of Geospheres, Russian Academy of Sciences, Moscow, Russia
^d Lomonosov Moscow State University, Moscow, Russia
^e L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
^f LLC "Scientific and production company "Spetstechnauka", Krasnoyarsk, Russia

Abstract: It is shown the “single-mode-multimode-single-mode” structure allows carrying out remote temperature measurement with optical time domain reflectometer. A multimode fiber length was 10 mm. We used the temperature range from 30 to 70$^\circ$C and wavelengths of 1310 and 1550 nm. The total length of a single-mode fiber-optic line for reflectometric measurements was 20 km.

Keywords: fiber optics, fiber optic sensors, optical fiber reflectometry, multimode interference.

Received: 01.06.2022
Revised: 14.07.2022
Accepted: 14.07.2022

DOI: 10.21883/PJTF.2022.17.53281.19267

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