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Identification of sensors in optical fiber networks with Rayleigh backscattering
SPIE Proceedings, 2017This paper presents a new method of identifying an optical sensor like Fiber Bragg Grating1,2 (FBG) temperature sensors. The identifier is a pattern inscribed into the core of an optical fiber by a femtosecond laser. A Rayleigh backscattering interrogator is used to readout the identifier.
T. Ringel, T. Bosselmann
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Observation of a Random Fiber Laser Induced by Rayleigh Backscattering
2014 International Semiconductor Laser Conference, 2014We present several observations of a random fiber lasing effect induced by Rayleigh backscattering only. A reflective semiconductor optical amplifier re-amplifies the non-coherent light fed back by 25km of SMF acting as a scattered mirror.
G. Simon +7 more
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Water temperature measurements with a Rayleigh backscatter distributed sensor
Optical Fiber Technology, 2020Abstract A Rayleigh scattering-based optical fiber distributed temperature sensor (DTS) was used to perform fully-distributed temperature measurements of a vertical water column in a natural circulation heat transfer facility. Five thermocouples were collocated along the length of the DTS in the centerline of the water column. In-situ calibration was
David Holler +2 more
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Rayleigh Backscattering In Optical Passive Ring-Resonator Gyro
SPIE Proceedings, 1984The Rayleigh backscattering in Optical Passive Ring-Resonator Gyro (OPRG) is newly formulated in consideration of the temporal coherence of the optical source. This scattering degrades the gyro linearity due to its resonance peak splitting under the rotation.
K. Iwatsuki, K. Hotate, M. Higashiguchi
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Effect of thermal aging on Rayleigh backscattering in an optical fiber
Optical Engineering, 2009We investigate the effect of thermal aging on the optical properties of multimode silica fibers. Samples were submitted to several heating-cooling cycles of 8 h each. Analyses were performed using an optical spectrum analyzer and an optical time-domain reflectometer to determine the signal loss.
Ch'Hayder, A. +4 more
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Calculation of Rayleigh backscattering noise in fiber-optic gyroscopes
Journal of the Optical Society of America A, 1985Rayleigh backscattering noise in fiber-optic gyroscopes is calculated by taking into account the Rayleigh backscattered wave phases. The property of a low-coherence light wave is introduced by means of the analytic signal of the light source. The noise-equivalent rotation rate of Rayleigh backscattering is shown to be a factor of 2|1−2K| smaller than ...
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Rayleigh backscattering theory for single-mode optical fibers
Journal of the Optical Society of America, 1983The theory of backscattering in single-mode optical fibers is described through use of a correlation function for the refractive-index fluctuation in the fiber. A simple formula for the backscattered power is derived using two correlation functions for the Booker–Gordon and Gaussian models.
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Non-Rayleigh statistics of ultrasonic backscattered echoes
Till recently, many of the tissue characterization models have been based on the Rayleigh distribution. However, there have been many instances cited in literature suggesting that deviations from Rayleigh statistics occur when the region of interest contains fewer number of scatterers, exhibits significant variations in scattering cross-section, or ...openaire +1 more source
Optical Network Authentication through Rayleigh Backscattering Fingerprints of the Composing Fibers
GLOBECOM 2022 - 2022 IEEE Global Communications Conference, 2022Pantea Nadimi Goki +4 more
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Finite Rayleigh length in Compton backscattering
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentDmitrii V. Gavrilenko +2 more
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