High Sensitive Refractive Index Sensor Based on Cladding Mode Recoupled Chirped FBG

2012 ◽  
Vol 24 (5) ◽  
pp. 413-415 ◽  
Author(s):  
An Sun ◽  
Zhishen Wu
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensor ◽  
Cladding Mode

scholarly journals Temperature-Insensitive Refractive Index Sensor with Etched Microstructure Fiber

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3749 ◽  
Author(s):  
Bin Dai ◽  
Xiang Shen ◽  
Xiongwei Hu ◽  
Luyun Yang ◽  
Haiqing Li ◽  
...  
Keyword(s):  
Refractive Index ◽  
Low Temperature ◽  
Extinction Ratio ◽  
Refractive Index Sensor ◽  
Large Mode Area ◽  
Pure Silica ◽  
Microstructure Fiber ◽  
Cladding Mode ◽  
Mode Area ◽  
Sensing Characteristics

A Mach–Zehnder interferometer (MZI) based on an etched all-solid microstructure fiber (MOF) has been demonstrated. The MZI works on the basis of interference between the vibrant core and cladding modes in the MOF. The all-solid MOF has a heterostructure cladding composed of Ge-doped rod arrays and pure silica, and thus can support and propagate a vibrant cladding mode with a large mode area. When the outermost cladding of MOF is etched, the cladding mode becomes sensitive to the ambient refractive index (RI). The etched MOF can work as a sensing head for RI sensing. By comparing the interference spectra, the extinction ratio has remained stable at around 20 dB after the MOF was etched. The RI sensing characteristics of the MZI with an etched MOF have also been investigated. The results show that the RI sensitivity can reach up to 2183.6 nm/RIU with a low-temperature coefficient (<10 pm/°C).

Highly sensitive refractive index sensor based on cladding mode interference in microtapered SMF

2011 ◽  
Author(s):  
Saurabh M. Tripathi ◽  
Arun Kumar ◽  
Emmanuel Marin ◽  
Jean-Pierre Meunier
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensor ◽  
Highly Sensitive ◽  
Cladding Mode ◽  
Mode Interference

Fiber-optic refractive index sensor based on cladding-mode resonance

2009 ◽  
Author(s):  
Fufei Pang ◽  
Huanhuan Liu ◽  
Na Chen ◽  
Yunqi Liu ◽  
Xianglong Zeng ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Refractive Index Sensor ◽  
Cladding Mode

Core–cladding mode recoupling based fiber optic refractive index sensor

2013 ◽  
Vol 294 ◽  
pp. 188-191 ◽  
Author(s):  
Xinpu Zhang ◽  
Wei Peng ◽  
Yun Liu ◽  
Lujun Pan
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Refractive Index Sensor ◽  
Cladding Mode

scholarly journals Refractive Index Sensor for Salty and Sugary Solution Based on Optical Fiber Technical

2021 ◽  
Vol 1879 (3) ◽  
pp. 032077
Author(s):  
Maher Khaleel Ibrahim ◽  
Shehab A Kadhim ◽  
Nabeil Ibrahim Fawaz
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Refractive Index Sensor
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