Open AccessMeasurement of slow and fast polarization transients on a fiber-optic testbed
Author(s) -
Peter Barcík,
Petr Münster
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.390649
Subject(s) - polarimeter , optics , polarization maintaining optical fiber , beam splitter , polarization (electrochemistry) , optical fiber , birefringence , fiber optic sensor , single mode optical fiber , detector , physics , fiber bragg grating , materials science , polarimetry , scattering , laser , chemistry
Polarization changes inside a single-mode fiber due to birefringence are studied in this paper. We demonstrate a measurement system for the detection of fast and slow polarization transients in a single-mode optical fiber route. The output signals from a polarimeter based on tilted fiber gratings and a polarimeter based on a polarizing beam splitter and a balanced detector (PBS polarimeter) are processed. The processed data reveal that the detected signal depends on the vibration along the fiber route caused by trains and the temperature instability around the fiber. The proposed system is sufficient for detecting polarization transients and can be used for the detection of suspicious events that would lead to a disruption of the optical path.