Results 21 to 30 of about 36,426 (285)
Recent Progress in Distributed Fiber Optic Sensors
Sensors, 2012 Rayleigh, Brillouin and Raman scatterings in fibers result from the interaction of photons with local material characteristic features like density, temperature and strain.
Xiaoyi Bao, Liang Chen
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Birefringent Glass‐Engraved Tilted Pillar Metasurfaces for High Power Laser Applications
Advanced Science, 2023 Birefringent materials—which are highly needed in high power laser systems—may be limited in usage due to the laser‐induced damage threshold of traditional birefringent materials.
Nathan J. Ray +4 more
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Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]
, 2012 In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
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Mitigation of the birefringence dispersion on the polarization coupling measurement in a long-distance high-birefringence fiber [PDF]
, 2012 Due to the birefringence dispersion, the polarization coupling parameter measurement in high-birefringence fiber decreases obviously with the fiber length, especially for long-distance fibers.
Chen, Xinwei +5 more
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IEEE Photonics Journal, 2015 In this paper, we have demonstrated birefringence modification in regenerated grating in polarization maintaining fiber (RGPMF) by using a CO2 laser annealing technique.
Man-Hong Lai +5 more
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Enhancement of Birefringence in Reduced Graphene Oxide Doped Liquid Crystal
Nanomaterials, 2020 We investigated the effect of reduced graphene oxide (rGO) doping on the birefringence of 5CB liquid crystal (LC). The characteristics of the synthesized rGO and LC-rGO composite with different rGO concentrations were analyzed by atomic force microscopy,
Mareddi Bharath Kumar +6 more
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Measurement of the Cotton Mouton effect of water vapour
, 2013 In this paper we report on a measurement of the Cotton Mouton effect of water vapour. Measurement performed at room temperature ($T=301$ K) with a wavelength of 1064 nm gave the value $\Delta n_u = (6.67 \pm 0.45) \cdot 10^{-15}$ for the unit magnetic ...
Della Valle, F. +8 more
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Birefringence Variation Independent Fiber-Optic Current Sensor Using Real-Time SOP Measurement
IEEE Photonics Journal, 2017 We propose a birefringence variation independent fiber-optic current sensor based on polarization diversity and a real-time state of polarization measurement technique.
Yinping Liu, Lin Ma, Zuyuan He
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Frontiers in Physics, 2023 When the polarization-maintaining fiber (PMF) delay coil of a fiber optic current transformer (FOCT) is impacted, external forces on the optical fibers and change of their birefringence may lead to extra phase errors during the propagation of optical ...
Hongze Gao +7 more
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First results from the new PVLAS apparatus: a new limit on vacuum magnetic birefringence
, 2014 Several groups are carrying out experiments to observe and measure vacuum magnetic birefringence, predicted by Quantum Electrodynamics (QED). We have started running the new PVLAS apparatus installed in Ferrara, Italy, and have measured a noise floor ...
Della Valle, F. +8 more
core +1 more source