Distributed strain and temperature sensing over 100 km using tunable-wavelength OTDR based on MEMS filters

Taranov M.A., Gorshkov B G, Alekseev A E, Potapov V T Distributed strain and temperature sensing over 100 km using tunable-wavelength OTDR based on MEMS filters. APPLIED OPTICS , 2021 , 60 (11). С. 3049-3054. ISSN 2155-3165

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Аннотация

The possibility of distributed wide-range strain and temperature measurements in a 100 km long optical fiber using tunable-wavelength low-coherence optical time-domain reflectometer (OTDR) is demonstrated. The specified distance range is provided by employing two narrowband microelectromechanical system (MEMS) spectral filters tuned synchronously as well as by taking advantage of Raman amplification and amplification by remotely pumped erbium-doped fiber segments built into the fiber under test. With the time of a single measurement of 10 min and the spatial resolution of about 1 m, the measurement range reached 1000 µɛ in strain units, which is equivalent to the temperature range of 110°C.

Тип объекта:	Статья
Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!:	Таранов М.А., Горшков Б.Г., Алексеев А.Э., Потапов В.Т.
Подразделения (можно выбрать несколько, удерживая Ctrl):	278 лаб. радиофизических измерений
URI:	http://cplire.ru:8080/id/eprint/7976

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