Influence of the laser frequency drift in phase-sensitive optical time-domain reflectometry

Autor:	Zhirnov, A. A., Stepanov, K. V., Chernutsky, A. O., Fedorov, A. K., Nesterov, E. T., Svelto, C., Pnev, A. B., Karasik, V. E.
Rok vydání:	2016
Předmět:	Physics - Instrumentation and Detectors Physics - Data Analysis Statistics and Probability Physics - Optics
Zdroj:	Opt. Spectrosc. 127, 656 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1134/S0030400X1910031X
Popis:	The influence of the laser frequency drift on the operation of phase-sensitive optical time-domain reflectometry ($\Phi$-OTDR) systems is considered. Theoretical results based on a new numerical $\Phi$-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 $\Phi$-OTDR systems are formulated. Comment: 8 pages, 7 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1604.08854 Zobrazit plný text záznamu View this record from Arxiv