期刊
PHOTONICS
卷 9, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/photonics9010038
关键词
photonic crystal fiber; chemical sensor; relative sensitivity; confinement loss
类别
资金
- UNIVERSITI BRUNEI DARUSSALAM [UBD/RSCH/1.3/FICBF(b)/2019/008]
A highly sensitive non-complex cored photonic crystal fiber sensor has been proposed for hazardous chemical sensing. Numerical analysis shows that the fiber has high sensitivity and low losses for water, ethanol, and benzene, and also displays high power fraction and flattened chromatic dispersion.
A highly sensitive non-complex cored photonic crystal fiber sensor for hazardous chemical sensing with water, ethanol, and benzene analytes has been proposed and is numerically analyzed using a full-vector finite element method. The proposed fiber consists of a hexagonal core hole and two cladding air hole rings, operating in the lower operating wavelength of 0.8 to 2.6 mu m. It has been shown that the structure has high relative sensitivity of 94.47% for water, 96.32% for ethanol and 99.63% for benzene, and low confinement losses of 7.31 x 10(-9) dB/m for water, 3.70 x 10(-10) dB/m ethanol and 1.76 x 10(-13) dB/m benzene. It also displays a high power fraction and almost flattened chromatic dispersion. The results demonstrate the applicability of the proposed fiber design for chemical sensing applications.
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