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This article is cited in 12 scientific papers (total in 12 papers)
Special Issue "Physical Optics and Spectroscopy: Interdisciplinary Research"
Precision optical measurements and metrology
Influence of the laser frequency drift in phase-sensitive optical time domain reflectometry
A. A. Zhirnova, K. V. Stepanova, A. O. Chernutskya, A. K. Fedorovb, E. T. Nesterova, C. Sveltoc, A. B. Pneva, V. E. Karasika a Bauman Moscow State Technical University, 105005, Moscow, Russia
b Russian Quantum Center, Skolkovo IC, 143025, Moscow, Russia
c Dipartimento di Elettronica e Informazione del Politecnico di Milano, 20133 Milano, Italy
Abstract:
The influence of the laser frequency drift on the operation of phase-sensitive optical time domain reflectometry ($\varphi$-OTDR) systems is considered. Theoretical results based on a new numerical $\varphi$-OTDR model demonstrating the influence of the laser frequency instability on a signal are reported. This model is verified based on experimental data. It has been used to calculate the signal-to-noise ratio (SNR) of the system for different parameters of the laser source stability. As a result, quantitative requirements for lasers used in $\varphi$-OTDR systems are formulated.
Keywords:
phase-sensitive optical time domain reflectometer, laser frequency fluctuation, narrow-band laser, distributed sensor.
Received: 11.06.2019 Revised: 11.06.2019 Accepted: 20.06.2019
Citation:
A. A. Zhirnov, K. V. Stepanov, A. O. Chernutsky, A. K. Fedorov, E. T. Nesterov, C. Svelto, A. B. Pnev, V. E. Karasik, “Influence of the laser frequency drift in phase-sensitive optical time domain reflectometry”, Optics and Spectroscopy, 127:4 (2019), 603–610; Optics and Spectroscopy, 127:4 (2019), 656–663
Linking options:
https://www.mathnet.ru/eng/os581 https://www.mathnet.ru/eng/os/v127/i4/p603
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