Title :
In-line fiber-optic Fabry-Perot ultrasound sensor formed by hollow-core photonic-crystal fiber
Author :
Rao, Yun-Jiang ; Wang, Wei ; Zhu, Tao ; Dewen Duan
Author_Institution :
Key Lab. of Broadband Opt. Fiber Transm. & Commun. Networks (Educ. Minist. of China), Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
An in-line fiber-optic Fabry-Perot sensor formed by hollow-core photonic crystal fiber is used for ultrasound detection. The experimental results show that the wavelength-pressure sensitivity is ~7.29 × 10-3 nm/MPa, which is about twice more than that of FBG.
Keywords :
Fabry-Perot interferometers; acoustic signal detection; fibre optic sensors; holey fibres; photonic crystals; ultrasonic variables measurement; Fabry-Perot interferometric sensor; hollow core photonic crystal fiber; in-line fiber optic Fabry-Perot ultrasound sensor; ultrasound detection; wavelength-pressure sensitivity; Fabry-Perot; Optical fiber communication; Optical fiber networks; Optical fiber sensors; Optical interferometry; Optical sensors; Optoelectronic and photonic sensors; Photonic crystal fibers; Temperature sensors; Ultrasonic imaging;
Conference_Titel :
Sensors, 2009 IEEE
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-4548-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2009.5398249
