Title :
Two-mode operation in highly birefringent photonic Crystal fiber
Author :
Ju, J. ; Jin, W. ; Demokan, M.S.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
Abstract :
A photonic crystal fiber with different air-hole diameters along the orthogonal axes is found to support only the first two modes over a very broad wavelength range (>650 nm). The second-order mode is approximately linearly polarized and has stable-intensity lope positions that do not change in response to environmental disturbances. Strain sensitivity as a function of operating wavelength of a two-mode interferometric sensor made from such a fiber is also investigated.
Keywords :
fibre optic sensors; finite element analysis; light interferometry; optical fibre polarisation; photonic crystals; strain sensors; air-hole diameters; broad wavelength range; finite-element method; highly birefringent fiber; linearly polarized mode; photonic crystal fiber; second-order mode; stable-intensity lope positions; strain sensitivity; two-mode interferometric sensor; two-mode operation; Birefringence; Capacitive sensors; Helium; Linear approximation; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical fiber sensors; Photonic crystal fibers; Strain measurement;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.835216
