A novel method for weak signal demodulation in long-distance optical fiber Sagnac interferometer sensor system

2015 ◽  
Author(s):  
G. Z. Zhao ◽  
X. Gao ◽  
Y. Chang
Keyword(s):  
Optical Fiber ◽  
Sensor System ◽  
Weak Signal ◽  
Sagnac Interferometer ◽  
Long Distance ◽  
Signal Demodulation ◽  
Novel Method

Optimum design of 30-km long-distance distributed optical fiber Raman temperature sensor system

2005 ◽  
Author(s):  
Zaixuan Zhang ◽  
Honglin Liu ◽  
Jianfeng Wang ◽  
Xiangdong Yu ◽  
Yongxing Jin ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optimum Design ◽  
Temperature Sensor ◽  
Sensor System ◽  
Long Distance ◽  
Distributed Optical Fiber

Polymer optical fiber-embedded force sensor system for assistive devices with dynamic compensation

2021 ◽  
pp. 1-1
Author(s):  
Leticia Avellar ◽  
Gabriel Delgado ◽  
Eduardo Rocon ◽  
Carlos Marques ◽  
Anselmo Frizera ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Force Sensor ◽  
Assistive Devices ◽  
Sensor System ◽  
Polymer Optical Fiber ◽  
Dynamic Compensation

A Multiplexed Optical Fiber Sensor System For Distributed Measurement Of Structural Strains

1997 ◽  
Vol 503 ◽  
Author(s):  
F. Ansari ◽  
Z. Chen ◽  
Q. Li
Keyword(s):  
Optical Fiber ◽  
Optical Switch ◽  
Optical Fiber Sensor ◽  
Fiber Material ◽  
Smart Structure ◽  
Sensor System ◽  
Fiber Sensor ◽  
Fiber Sensors ◽  
Large Structures ◽  
Distributed Measurement

ABSTRACTStructurally integrated optical fiber sensors form the basis for smart structure technology. Over the past decade a variety of sensor configurations have been developed for measurement of strains and deformations in structures. Strains and deformations alter the refractive index and the geometry of the optical fiber material. These changes perturb the intensity, phase, and polarization of the light-wave propagating along the probing fiber. The optical perturbations are detected for the determination of strain. The research presented here describes the development of a new optical fiber sensor system for measurement of structural strains based on white light interferometry. An optical switch provides for multiplexing of strain signals from various locations in the structure. Redundant Bragg grating type fiber optic sensors as well as strain gauges were employed for comparison and verification of strain signals as measured by the new system. The system provides capability for distributed sensing of strains in large structures.

Magnet-sensitive optical fiber and its application in current sensor system

1991 ◽  
Author(s):  
Tong Yu ◽  
Qin G. Li ◽  
Rongsheng Chen ◽  
Jin-Li Yan
Keyword(s):  
Optical Fiber ◽  
Sensor System ◽  
Current Sensor

Simplified technique for the adjustment of a birefringent optical fiber Sagnac interferometer

1999 ◽  
Author(s):  
Hector H. Cerecedo-Nunez ◽  
Evgueni A. Kuzin ◽  
Jose Javier Sanchez-Mondragon ◽  
Esteban Molina
Keyword(s):  
Optical Fiber ◽  
Sagnac Interferometer ◽  
Birefringent Optical Fiber

scholarly journals Study of Optical Fiber Design Parameters in Fiber Optics Communications

2017 ◽  
Vol 2 (3) ◽  
pp. 302-308 ◽  
Author(s):  
Salim Qadir Mohammed ◽  
Asaad M. Asaad M. Al-Hindawi
Keyword(s):  
Optical Fiber ◽  
Fiber Optics ◽  
Numerical Aperture ◽  
Design Parameters ◽  
Light Sources ◽  
Long Distance ◽  
Graded Index ◽  
Large Bandwidth ◽  
Telecommunication Infrastructure ◽  
Distance Communication

Fiber optics is an important part in the telecommunication infrastructure. Large bandwidth and low attenuation are features for the fiber optics to provide gigabit transmission. Nowadays, fiber optics are used widely in long distance communication and networking to provide the required information traffic for multimedia applications. In this paper, the optical fiber structure and the operation mechanism for multimode and single modes are analyzed. The design parameters such as core radius, numerical aperture, attenuation, dispersion and information capacity for step index and graded index fibers are studied, calculated and compared for different light sources.

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