Title :
Temperature-insensitive pressure sensor using a polarization-maintaining photonic crystal fiber based sagnac interferometer
Author :
Tam, H.Y. ; Khijwania, Sunil K. ; Dong, X.Y.
Author_Institution :
Hong Kong Polytech. Univ., Hong Kong
Abstract :
A novel, highly sensitivity, fiber-optic pressure sensor with polarization-maintaining photonic crystal fiber (PM-PCF) based Sagnac interferometer (SI) is proposed and experimentally demonstrated. A wavelength-pressure sensitivity -3.75 nm/MPa is achieved with a 79.6-cm PM-PCF as the sensing element. Owing to the birefringence insensitivity for the PM-PCF, the sensor is inherently temperature insensitive.
Keywords :
Sagnac interferometers; fibre optic sensors; photonic crystals; pressure sensors; Sagnac interferometer; fiber-optic pressure sensor; polarization-maintaining photonic crystal fiber; temperature-insensitive pressure sensor; Birefringence; Bragg gratings; Fiber gratings; Optical fiber polarization; Optical fiber sensors; Optical sensors; Optoelectronic and photonic sensors; Photonic crystal fibers; Sagnac interferometers; Temperature sensors; Pressure sensor; Sagnac interferometer; polarization-maintaining photonic crystal fiber;
Conference_Titel :
Optical Fiber Communication and Optoelectronics Conference, 2007 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-9789217-2-9
Electronic_ISBN :
978-0-9789217-2-9
DOI :
10.1109/AOE.2007.4410802
