FBG sensor interrogation using fiber optical bistability in frequency domain

2007 ◽  
Author(s):  
Guohui Lv ◽  
Jinping Ou ◽  
Hongan Ye ◽  
Zhi Zhou ◽  
Shaohua Shang ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Optical Bistability ◽  
Fbg Sensor ◽  
Fiber Optical

Er-doped fiber optical bistability without cavity

1997 ◽  
Vol 2 (3) ◽  
pp. 292-294 ◽  
Author(s):  
Zhang Yuancheng ◽  
Ke Xianjun ◽  
Wang Lin
Keyword(s):  
Optical Bistability ◽  
Fiber Optical ◽  
Er Doped

SBS-Based Fiber Optical Sensing Using Frequency-Domain Simultaneous Tone Interrogation

2011 ◽  
Vol 29 (11) ◽  
pp. 1729-1735 ◽  
Author(s):  
Asher Voskoboinik ◽  
Jian Wang ◽  
Bishara Shamee ◽  
Scott R. Nuccio ◽  
Lin Zhang ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Optical Sensing ◽  
Fiber Optical

scholarly journals Research on FBG-Based Sensor Networks and Their Coexistence with Fiber Optical Transmission Systems

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Ugis Senkans ◽  
Janis Braunfelds ◽  
Ilya Lyashuk ◽  
Jurgis Porins ◽  
Sandis Spolitis ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Simulation Model ◽  
Sensor Network ◽  
Optical Sensors ◽  
Optical Transmission ◽  
Single Mode ◽  
Transmission System ◽  
Optical Data ◽  
Fbg Sensor ◽  
Fiber Optical

Market forecasts and trends for the usage of fiber optical sensors confirm that demand for them will continue to increase in the near future. This article focuses on the research of fiber Bragg grating (FBG) sensor network, their applications in IoT and structural health monitoring (SHM), and especially their coexistence with existing fiber optical communication system infrastructure. Firstly, the spectrum of available commercial optical FBG temperature sensor was experimentally measured and amplitude-frequency response data was acquired to further develop the simulation model in the environment of RSoft OptSim software. The simulation model included optical sensor network, which is combined with 8-channel intensity-modulated wavelength division multiplexed (WDM) fiber optical data transmission system, where one shared 20 km long ITU-TG.652 single-mode optical fiber was used for transmission of both sensor and data signals. Secondly, research on a minimal allowable channel spacing between sensors’ channels was investigated by using MathWorks MATLAB software, and a new effective and more precise determination algorithm of the exact center of the sensor signal’s peak was proposed. Finally, we experimentally show successfully operating coexistence concept of the spectrum-sliced fiber optical transmission system with embedded scalable FBG sensor network over one shared optical fiber, where the whole system is feed by only one broadband light source.

scholarly journals Distributed Measurements with a Long Gauge FBG Sensor Using Optical Frequency Domain Reflectometry

2008 ◽  
Vol 2 (9) ◽  
pp. 1242-1252 ◽  
Author(s):  
Hirotaka IGAWA ◽  
Keiichi OHTA ◽  
Tokio KASAI ◽  
Isao YAMAGUCHI ◽  
Hideaki MURAYAMA ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Optical Frequency ◽  
Fbg Sensor ◽  
Optical Frequency Domain Reflectometry ◽  
Frequency Domain Reflectometry
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