Fiber Optic Raman Distributed Temperature Sensor Based on an Ultrashort Pulse Mode-Locked Fiber Laser
| Autor: | A. O. Chernutsky, Valery E. Karasik, Stanislav G. Sazonkin, Igor S. Kudelin, Dmitriy A. Dvoretskiy, Ilya O. Orekhov, Ya. Zh. Ososkov, Alexey B. Pnev |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Pulse repetition frequency Optical fiber Materials science business.industry Physics::Optics chemistry.chemical_element Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Erbium Optics chemistry law 0103 physical sciences Fiber Photonics business Ultrashort pulse Image resolution |
| Zdroj: | Optics and Spectroscopy. 127:664-668 |
| ISSN: | 1562-6911 0030-400X |
| Popis: | The testing of an all-fiber erbium ultrashort pulsed laser in a distributed fiber temperature sensor as a source of probing pulses has been performed. Among the prospects of such an approach are an improved signal–noise ratio in the receiving system and a better spatial resolution of the temperature sensor. The experiments have revealed the factors that limit the effective length of the fiber temperature sensor, such as a high pulse repetition frequency and intrinsic laser noises. As a result of the performed work, the distributed fiber optical temperature sensor with a near-room-temperature resolution of ~1.5 K, an effective length of ~3 m, and a spatial resolution of ~10 cm has been developed. |
| Databáze: | OpenAIRE |
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