Title :
All Fiber Mach–Zehnder Interferometer Based on Suspended Twin-Core Fiber
Author :
Frazão, Orlando ; Silva, S.F.O. ; Viegas, J. ; Baptista, José M. ; Santos, José L. ; Kobelke, Jens ; Schuster, Kay
Author_Institution :
INESC Porto, Porto, Portugal
Abstract :
An all fiber Mach-Zehnder interferometer using suspended twin-core fiber is described. Due to the birefringence of the fiber cores, two interferometers are obtained when the fiber is illuminated by a polarized light. Applying curvature or temperature to the sensing head, different sensitivities are observed. In order to discriminate curvature from temperature in the suspended twin-core fiber Mach-Zehnder sensor, the matrix method is used.
Keywords :
Mach-Zehnder interferometers; birefringence; fibre optic sensors; optical fibre polarisation; all fiber Mach-Zehnder interferometer; birefringence; light polarization; matrix method; sensing head; suspended twin-core fiber; Birefringence; Helium; Optical fiber polarization; Optical fiber sensors; Optical fibers; Optical interferometry; Photonic crystal fibers; Temperature sensors; Thermal sensors; Thermooptic effects; Interferometer; microstructured fiber; optical fiber sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2054071
