Electric current measurement using fiber Bragg grating covered by aluminum thin film

2001 ◽  
Author(s):  
Shiquan Yang ◽  
Hongyun Meng ◽  
Xinyong Dong ◽  
Yang Xiang ◽  
Xiaoyi Dong
Keyword(s):  
Thin Film ◽  
Electric Current ◽  
Fiber Bragg Grating ◽  
Current Measurement ◽  
Bragg Grating ◽  
Aluminum Thin Film

Aluminum-thin-film packaged fiber Bragg grating probes for monitoring the maximum tensile strain of composite materials

2014 ◽  
Vol 53 (17) ◽  
pp. 3615 ◽  
Author(s):  
Jooeun Im ◽  
Mihyun Kim ◽  
Ki-Sun Choi ◽  
Tae-Kyung Hwang ◽  
Il-Bum Kwon
Keyword(s):  
Thin Film ◽  
Composite Materials ◽  
Fiber Bragg Grating ◽  
Tensile Strain ◽  
Bragg Grating ◽  
Aluminum Thin Film ◽  
Maximum Tensile Strain

A Fiber Bragg Grating-Based Thin-Film Sensor for Measuring Dynamic Water Pressure

2018 ◽  
Vol 18 (18) ◽  
pp. 7383-7391 ◽  
Author(s):  
Ping-Liang Ko ◽  
Kuo-Chih Chuang ◽  
Chien-Ching Ma
Keyword(s):  
Thin Film ◽  
Fiber Bragg Grating ◽  
Water Pressure ◽  
Bragg Grating ◽  
Film Sensor ◽  
Thin Film Sensor

Side-polished fiber Bragg grating refractive index sensor with TbFeCo magnetoptic thin film

2010 ◽  
Vol 108 (3) ◽  
pp. 033102 ◽  
Author(s):  
Minghong Yang ◽  
Jixiang Dai ◽  
Xiaobin Li ◽  
Junjie Wang
Keyword(s):  
Thin Film ◽  
Refractive Index ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Refractive Index Sensor ◽  
Side Polished Fiber

Application of Fiber Bragg Grating Sensor coated with Polyaniline as an optical Sensor for chloroform detection

2017 ◽  
Vol 25 (7) ◽  
pp. 555-562
Author(s):  
Irma Zulayka Mohamad Ahad ◽  
Sulaiman Wadi Harun ◽  
Seng neon Gan ◽  
Sook Wai Phang
Keyword(s):  
Thin Film ◽  
Fiber Bragg Grating ◽  
Optical Sensor ◽  
Fast Response ◽  
Chemical Oxidation ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Peak Ratio ◽  
Bragg Wavelength ◽  
Fbg Sensor

Fiber Bragg Grating (FBG) sensor coated with PAni was designed as a sensing device in chloroform detection. PAni thin film was synthesized through chemical oxidation method by using aniline (Ani) as a monomer, ammonium persulphate (APS) as an initiator and dioctyl sodium sulfosuccinate (AOT) as a dopant. The chemical structure of PAni thin film was confirmed by using Fourier transform infrared (FTIR) and ultraviolet-visible (UV-Vis) spectrometer. The conducting behaviour of PAni thin film (1.157 × 10−2 S/cm) was determined by using four-point probe measurement. In the optical sensor part, FBG was etched in hydrofluoric acid solution (48% HF) to remove the cladding layer on fiber before coated with PAni. The response of this sensor was monitored based on the different of Bragg wavelength shift at ∼1557 nm in an optical spectrum analyzer (OSA) detector. PAni-coated FBG significantly increased in the Bragg wavelength shift (sensitivity = 0.0009) compared with uncoated FBG (sensitivity = 0.0002). The interaction between PAni and chloroform was significantly confirmed by the “polaron peak ratio” (Pf/Pi) and “quinoid and benzenoid peak ratio” (IQ/ IB) through UV-vis and FTIR spectroscopy analysis. In this study, FBG sensor coated with PAni thin film had been found as an efficient sensor in chloroform detection with fast response time (7 s).

Design and fabrication of thin film optical filters to replace fiber Bragg grating in Yb-doped fiber laser

2010 ◽  
Vol 518 (24) ◽  
pp. 7421-7424 ◽  
Author(s):  
C.N. Hsiao ◽  
P.K. Chiu ◽  
W.H. Cho ◽  
H.B. Chen ◽  
F.Z. Chen ◽  
...  
Keyword(s):  
Thin Film ◽  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Optical Filters ◽  
Bragg Grating

A Wide Range Fiber Bragg Grating Demodulation Method Based on Thin Film Filter

2009 ◽  
Vol 46 (5) ◽  
pp. 53-57
Author(s):  
何萌 He Meng ◽  
刘铁根 Liu Tiegen ◽  
江俊峰 Jiang Junfeng ◽  
韩憬 Han Jing
Keyword(s):  
Thin Film ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Wide Range ◽  
Thin Film Filter ◽  
Demodulation Method
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