Highly sensitive orientation and amplitude discerning vector bending sensor based on asymmetric multicore fiber

2020 ◽  
Author(s):  
Josu Amorebieta ◽  
Angel Ortega-Gomez ◽  
Gaizka Durana ◽  
Enrique Antonio-Lopez ◽  
Axel Schülzgen ◽  
...  
Keyword(s):  
Highly Sensitive ◽  
Bending Sensor ◽  
Asymmetric Multicore ◽  
Multicore Fiber

scholarly journals Compact omnidirectional multicore fiber-based vector bending sensor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Josu Amorebieta ◽  
Angel Ortega-Gomez ◽  
Gaizka Durana ◽  
Rubén Fernández ◽  
Enrique Antonio-Lopez ◽  
...  
Keyword(s):  
Single Mode ◽  
High Accuracy ◽  
Single Mode Fiber ◽  
Wavelength Shift ◽  
Short Segment ◽  
Light Power ◽  
Highly Sensitive ◽  
Bending Sensor ◽  
Asymmetric Multicore ◽  
Multicore Fiber

AbstractWe propose and demonstrate a compact and simple vector bending sensor capable of distinguishing any direction and amplitude with high accuracy. The sensor consists of a short segment of asymmetric multicore fiber (MCF) fusion spliced to a standard single mode fiber. The reflection spectrum of such a structure shifts and shrinks in specific manners depending on the direction in which the MCF is bent. By monitoring simultaneously wavelength shift and light power variations, the amplitude and bend direction of the MCF can be unmistakably measured in any orientation, from 0° to 360°. The bending sensor proposed here is highly sensitive even for small bending angles (below 1°).

Highly sensitive measurement of surrounding refractive index using tapered trench–assisted multicore fiber

2019 ◽  
Vol 48 ◽  
pp. 76-83 ◽  
Author(s):  
Zinah Abbas A. AL-Mashhadani ◽  
Isa Navruz
Keyword(s):  
Refractive Index ◽  
Highly Sensitive ◽  
Surrounding Refractive Index ◽  
Multicore Fiber

Highly Sensitive Strain Sensor Based on Helical Structure in Multicore Fiber

2016 ◽  
Author(s):  
Hailiang Zhang ◽  
Zhifang Wu ◽  
Perry Ping Shum ◽  
Xuguang Shao ◽  
Ruoxu Wang ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Helical Structure ◽  
Sensitive Strain ◽  
Highly Sensitive ◽  
Multicore Fiber

Bending sensor combining multicore fiber with a mode-selective photonic lantern

2015 ◽  
Vol 40 (22) ◽  
pp. 5188 ◽  
Author(s):  
Amy Van Newkirk ◽  
J. E. Antonio-Lopez ◽  
Amado Velazquez-Benitez ◽  
Jacques Albert ◽  
Rodrigo Amezcua-Correa ◽  
...  
Keyword(s):  
Bending Sensor ◽  
Multicore Fiber

scholarly journals Reflected power-based 2D bending sensor using femtosecond laser FBG inscription in multicore fiber

2019 ◽  
Author(s):  
Pablo Roldán Varona ◽  
David Pallarés Aldeiturriaga ◽  
Luis Rodríguez Cobo ◽  
José Miguel López Higuera
Keyword(s):  
Femtosecond Laser ◽  
Bending Sensor ◽  
Reflected Power ◽  
Multicore Fiber

scholarly journals In-Fiber Mach-Zehnder Interferometer Based on Three-Core Fiber for Measurement of Directional Bending

Sensors ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 205 ◽  
Author(s):  
Lei Ding ◽  
Yu Li ◽  
Cai Zhou ◽  
Min Hu ◽  
Yuli Xiong ◽  
...  
Keyword(s):  
Single Mode ◽  
Zehnder Interferometer ◽  
Swept Source ◽  
The Core ◽  
Biomedical Sensing ◽  
Highly Sensitive ◽  
Potential Applications ◽  
Core Fiber ◽  
Bending Sensor ◽  
Mach Zehnder Interferometer

A highly sensitive directional bending sensor based on a three-core fiber (TCF) Mach-Zehnder interferometer (MZI) is presented in this study. This MZI-based bending sensor was fabricated by fusion-splicing a section of TCF between two single-mode fibers (SMF) with core-offset. Due to the location of the core in the TCF, a bend applied to the TCF-based MZI led to an elongation or shortening of the core, which makes the sensor suitable for directional bending measurement. To analyze the bending characteristics, two types of TCF-based sensors, with the fusion-spliced core located at different positions between the SMFs, were investigated. A swept source was employed in the measurement technique. The experimental results showed that, for the two types of sensors in this setup, the bending sensitivities of the two sensors were 15.36 nm/m−1 and 3.11 nm/m−1 at the bending direction of 0°, and −20.48 nm/m−1 and −5.29 nm/m−1 at the bending direction of 180°. The temperature sensitivities of the two sensors were 0.043 nm/°C and 0.041 nm/°C, respectively. The proposed sensors are compact, versatile, inexpensive to fabricate, and are expected to have potential applications in biomedical sensing.

scholarly journals Optimized active multicore fiber bending sensor

2019 ◽  
Vol 87 ◽  
pp. 53-57 ◽  
Author(s):  
Juan A. Vallés ◽  
David Benedicto
Keyword(s):  
Bending Sensor ◽  
Multicore Fiber

Highly Sensitive Directional Bending Sensor Based on Eccentric Core Fiber Mach–Zehnder Modal Interferometer

2016 ◽  
Vol 16 (18) ◽  
pp. 6899-6902 ◽  
Author(s):  
Jing Kong ◽  
Xiaowei Ouyang ◽  
Ai Zhou ◽  
Libo Yuan
Keyword(s):  
Highly Sensitive ◽  
Core Fiber ◽  
Bending Sensor

Highly sensitive bending sensor based on multimode–multimode–coreoffset fiber structure

2015 ◽  
Vol 75 ◽  
pp. 52-56 ◽  
Author(s):  
Yanhui Qi ◽  
Lin Ma ◽  
Jiang Sun ◽  
Zexin Kang ◽  
Yunlong Bai ◽  
...  
Keyword(s):  
Fiber Structure ◽  
Highly Sensitive ◽  
Bending Sensor
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