Journal ArticleDOI
Characterization of Nonlinear Temperature Dependence of Brillouin Dynamic Grating Spectra in Polarization-Maintaining Fibers
Yong Hyun Kim,Kwang Yong Song +1 more
Reads0
Chats0
TLDR
In this paper, temperature dependencies of the Brillouin dynamic grating spectra in polarization-maintaining fibers (PMF's) are rigorously investigated, where PANDA fiber, Bow-tie fiber, and PM photonic crystal fiber with different parameters are tested in the temperature range of −30 to +150°C, where the linear and nonlinear temperature dependencies are quantified for each fiber.Abstract:
Temperature dependencies of the Brillouin dynamic grating (BDG) spectra in polarization-maintaining fibers (PMF's) are rigorously investigated. PANDA fiber, Bow-tie fiber, and PM photonic crystal fiber (PM-PCF) with different parameters are tested in the temperature range of −30 to +150 °C, where the linear and nonlinear temperature dependencies are quantified for each fiber. It is observed that bare PANDA and Bow-tie fibers show similar shape and magnitude of the nonlinear temperature dependence, while the contribution of the acrylate coating appears differently for each fiber. Suppression of the temperature dependence is observed in the PM-PCF, where notable effects of the acrylate coating on the birefringence are observed only below the room temperature. We also present the result of comparative measurement of the polarization beat length using the BDG analysis and the periodic lateral force method, which confirms the validity of the BDG-based birefringence measurement.read more
Citations
More filters
Journal ArticleDOI
Temperature-strain discrimination in distributed optical fiber sensing using phase-sensitive optical time-domain reflectometry.
TL;DR: A theoretical analysis, supported by experimental data, indicates that the proposed system for temperature-strain discrimination is intrinsically better conditioned than an equivalent existing approach that combines classical BrillouIn sensing with Brillouin dynamic gratings.
Journal ArticleDOI
Temperature-compensated distributed hydrostatic pressure sensor with a thin-diameter polarization-maintaining photonic crystal fiber based on Brillouin dynamic gratings.
Lei Teng,Hongying Zhang,Yongkang Dong,Dengwang Zhou,Taofei Jiang,Wei Gao,Zhiwei Lu,Liang Chen,Xiaoyi Bao +8 more
TL;DR: A temperature-compensated distributed hydrostatic pressure sensor based on Brillouin dynamic gratings (BDGs) is proposed and demonstrated experimentally for the first time, to the best of the knowledge, in a thin-diameter pure silica polarization-maintaining photonic crystal fiber.
Journal ArticleDOI
Distributed optical fiber pressure sensors
TL;DR: In this article, a review of early and recent works on distributed optical fiber pressure sensors, classifying the sensors according to the sensing mechanism, issues and potentials are analyzed and discussed.
Journal ArticleDOI
Distributed measurement of hydrostatic pressure based on Brillouin dynamic grating in polarization maintaining fibers.
TL;DR: High-sensitivity distributed measurement of hydrostatic pressure is experimentally demonstrated by optical time-domain analysis of Brillouin dynamic grating in polarization maintaining fibers (PMF's) by investigating the spectral shift of the BDG in four different types of PMF's.
Journal ArticleDOI
Applications of Brillouin Dynamic Grating to Distributed Fiber Sensors
TL;DR: In this paper, the Brillouin dynamic grating (BDG) represents this secondary role of the acoustic wave, which shows a unique reflection spectrum, called BDG spectrum, and also provides information on the waveguide parameters, such as polarization or modal birefringence with high accuracy.
References
More filters
Journal ArticleDOI
Temperature-insensitive strain sensor with polarization-maintaining photonic crystal fiber based Sagnac interferometer
TL;DR: In this article, a fiber-optic strain sensor is demonstrated by using a short length of polarization-maintaining photonic crystal fiber (PM-PCF) as the sensing element inserted in a Sagnac loop interferometer.
Journal ArticleDOI
All-optical dynamic grating generation based on Brillouin scattering in polarization-maintaining fiber.
TL;DR: In this article, a moving acoustic grating is generated by stimulated Brillouin scattering between writing beams in one polarization and used to reflect an orthogonally polarized reading beam at different wavelengths.
Journal ArticleDOI
Temperature-insensitive photonic crystal fiber interferometer for absolute strain sensing
TL;DR: In this article, the authors report a highly sensitive (∼2.8pm∕μe) wavelength-encoded strain sensor made from a piece of photonic crystal fiber (PCF) spliced to standard fibers.
Journal ArticleDOI
Dependence of the Brillouin frequency shift on strain and temperature in a photonic crystal fiber
TL;DR: The feasibility of the highly precise simultaneous measurement of temperature and strain by use of the PCF in a distributed Brillouin sensing system with a spatial resolution of 15 cm is demonstrated.
Journal ArticleDOI
Time-Domain Distributed Fiber Sensor With 1 cm Spatial Resolution Based on Brillouin Dynamic Grating
TL;DR: In this article, the authors demonstrate an optical time-domain distributed fiber sensor showing the highest spatial resolution ever reported based on Brillouin dynamic grating in a polarization-maintaining fiber.