Investigation of structural parameter dedendance of confinement losses in PCF-FBG sensor for oil and gas sensing applications.
Johny, Jincy; Prabhu, Radhakrishna; Fung, Wai Keung
Wai Keung Fung
Photonic crystal fibre (PCF)?fibre bragg grating (FBG) integration opens up new possibilities in multi-parameter fibre-optic sensing, owing to their active control over light characteristics and mode confinements. Their integration results in a mismatch in their mode field diameters (MFDs), which in turn causes various types of losses such as confinement loss, scattering loss, etc. This paper primarily investigates the effect of geometrical parameters on fibre parameters such as confinement loss and MFD, which plays a significant role in long distance fibre-optic remote sensing. Liquid crystal PCFs (LCPCFs) are utilized in the sensor configuration, exploiting their optical properties for photonic bandgap based tighter mode confinements and wavelength tunability. Furthermore, the LCPCF?FBG combo enables multi-parameter fibre-optic sensing which can be effectively utilized in oil and gas sensing applications. Theoretical study conducted on the fibre sensor revealed that confinement loss and MFD can be reduced by properly optimizing their structural parameters.
|Journal Article Type||Article|
|Publication Date||Apr 30, 2016|
|Journal||Optical and quantum electronics|
|Publisher||Springer (part of Springer Nature)|
|Peer Reviewed||Peer Reviewed|
|Institution Citation||JOHNY, J., PRABHU, R. and FUNG, W.K. 2016. Investigation of structural parameter dedendance of confinement losses in PCF-FBG sensor for oil and gas sensing applications. Optical and quantum electronics [online], 48, article number 252. Available from: https://doi.org/10.1007/s11082-016-0528-8|
|Keywords||Photonic crystal fibre (PCF); Confinement loss; Oil and gas; Fibre bragg grating (FBG); Remote sensing|
JOHNY 2016 Investigation of structural parameter