Numerical analysis and experimental investigation of highly sensitive photonic crystal fiber long-period grating refractive index sensor

2007 ◽  
Author(s):  
Zonghu He ◽  
Yinian Zhu ◽  
Jiří Kaňka ◽  
Henry Du
Keyword(s):  
Experimental Investigation ◽  
Refractive Index ◽  
Photonic Crystal ◽  
Numerical Analysis ◽  
Photonic Crystal Fiber ◽  
Refractive Index Sensor ◽  
Long Period Grating ◽  
Crystal Fiber ◽  
Long Period ◽  
Highly Sensitive

Sensing Characteristics of Long-Period Grating Inscribed in Grapefruit Photonic Crystal Fiber by Femtosecond Laser

2014 ◽  
Vol 513-517 ◽  
pp. 4231-4234
Author(s):  
Yuan Wei ◽  
Yu Jie Du
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Femtosecond Laser ◽  
Photonic Crystal Fiber ◽  
Resonant Wavelength ◽  
Long Period Grating ◽  
Crystal Fiber ◽  
Long Period ◽  
Surrounding Refractive Index ◽  
Novel Method

A novel method for fabricating long period grating in grapefruit photonic crystal fiber (GPCF) is proposed and demonstrated. An 800nm femtosecond laser is adopted to scan a section of GPCF periodically point-by-point, resulting in effective refractive index periodic demodulation. High resonance of ~17dB is obtained with a grating length of 30 mm. The temperature sensitivity of resonant wavelength 0.03 nm/°C is obtained from 20°C to 120 °C. In addition, the relationship between resonant wavelength and surrounding refractive index (SRI), when LPFG immersed in refractive index of solution of different index, is also researched.

scholarly journals Numerical investigation of a highly sensitive plasmonic refractive index sensor utilizing hexagonal lattice of photonic crystal fiber

2020 ◽  
Vol 18 ◽  
pp. 103313 ◽  
Author(s):  
Md. Mahabubur Rahman ◽  
Md. Aslam Molla ◽  
Alok Kumar Paul ◽  
Md.A. Based ◽  
Md. Masud Rana ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Numerical Investigation ◽  
Photonic Crystal Fiber ◽  
Hexagonal Lattice ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Highly Sensitive

Highly Sensitive Externally Metal Coated Plasmonic Refractive index Sensor based on Photonic Crystal Fiber

Optik ◽  
2021 ◽  
pp. 167482
Author(s):  
S.M. Abu Sufian Sunny ◽  
Tanvir Ahmed ◽  
Sohani Munteha Hiam ◽  
Alok Kumar Paul
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Highly Sensitive

scholarly journals A Highly Sensitive Refractive Index Sensor Based on a V-Shaped Photonic Crystal Fiber with a High Refractive Index Range

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3782
Author(s):  
Xin Yan ◽  
Rao Fu ◽  
Tonglei Cheng ◽  
Shuguang Li
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Refractive Index ◽  
Refractive Index Sensor ◽  
Chemical Production ◽  
Refractive Index Sensitivity ◽  
Crystal Fiber ◽  
Sensing Applications ◽  
Highly Sensitive

This paper proposes a highly sensitive surface plasmon resonance (SPR) refractive index sensor based on the photonic crystal fiber (PCF). The optical properties of the PCF are investigated by modulating the refractive index of a liquid analyte. The finite element method (FEM) is used to calculate and analyze the PCF structure. After optimization, the fiber can achieve high linearity of 0.9931 and an average refractive index sensitivity of up to 14,771.4 nm/RIU over a refractive index range from 1.47 to 1.52, with the maximum wavelength sensitivity of 18,000.5 nm/RIU. The proposed structure can be used in various sensing applications, including biological monitoring, environmental monitoring, and chemical production with the modification and analysis of the proposed structure.

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