scholarly journals Investigation of a Fiberoptic Device Based on a Long Period Grating in a Ring Resonator

Sensors ◽  
2016 ◽  
Vol 16 (9) ◽  
pp. 1357 ◽  
Author(s):  
Cinzia Corcione ◽  
Benedetto Troia ◽  
Francesco De Leonardis ◽  
Vittorio Passaro
Keyword(s):  
Ring Resonator ◽  
Long Period Grating ◽  
Long Period ◽  
Fiberoptic Device

scholarly journals Curvature Sensor Based on a Long-Period Grating in a Fiber Ring Resonator Interrogated by an OTDR

2019 ◽  
Vol 10 (1) ◽  
pp. 1-6
Author(s):  
Regina Magalhães ◽  
Susana Silva ◽  
Orlando Frazão
Keyword(s):  
Ring Resonator ◽  
Resonant Cavity ◽  
Long Period Grating ◽  
Fiber Ring ◽  
Curvature Sensing ◽  
Optical Time Domain Reflectometer ◽  
Long Period ◽  
Linear Behavior ◽  
Fiber Ring Resonator ◽  
Optical Time

Abstract The proposed technique demonstrates a fiber ring resonator interrogated by an optical time domain reflectometer (OTDR), for intensity sensing. By using this methodology, a cavity round trip time of 2.85 μs was obtained. For a proof of concept, a long-period grating was inserted in the resonant cavity operating as a curvature sensing device. A novel signal processing approach was outlined, regarding to the logarithmic behavior of the OTDR. Through analyzing the experimental results, an increase in the measured sensitivities was obtained by increasing applied bending. With curvatures performed from 1.8 m−1 to 4.5 m−1, the sensitivity values ranged from 2.94 dB·km−1 to 5.15 dB·km−1. In its turn, the sensitivities obtained presented a linear behavior when studied as a function of the applied curvature, following a slope of 0.86×10−3 dB. The advantages of applying this technique were also discussed, demonstrating two similar fiber rings multiplexed in a series of configurations.

A Long Period Grating Sensor Based on Helical Capillary Optical Fiber

2021 ◽  
pp. 1-1
Author(s):  
Hongchang Deng ◽  
Rui Wang ◽  
Xiaowen Jiang ◽  
Chuanxin Teng ◽  
Ronghui Xu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Long Period Grating ◽  
Long Period

scholarly journals Experimental demonstration of a long-period grating based on the sampling theorem

2006 ◽  
Vol 88 (21) ◽  
pp. 211103 ◽  
Author(s):  
Min-Suk Kwon ◽  
Young-Bo Cho ◽  
Sang-Yung Shin
Keyword(s):  
Sampling Theorem ◽  
Experimental Demonstration ◽  
Long Period Grating ◽  
Long Period

On-line tests of an optical fiber long-period grating subjected to gamma irradiation

2014 ◽  
Author(s):  
D. Sporea ◽  
A. Stancalie ◽  
D. Negut ◽  
G. Pilorget ◽  
S. Delepine-Lesoille ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Gamma Irradiation ◽  
Long Period Grating ◽  
Long Period ◽  
On Line

Detection specificity studies of bacteriophage adhesin-coated long-period grating-based biosensor

2015 ◽  
Author(s):  
Marcin Koba ◽  
Mateusz Śmietana ◽  
Ewa Brzozowska ◽  
Sabina Górska ◽  
Predrag Mikulic ◽  
...  
Keyword(s):  
Long Period Grating ◽  
Long Period ◽  
Detection Specificity
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