Fibre cladding structures as a sensitive element of fibre optic sensors

摘要

Three types of periodical structures formed on fibre cladding are observed. First one formed on the fibre cladding, which resulted in refractive index changes along fibre axis, second one formed as corrugated boundary between fibre core and cladding, and third one created on the fibre cladding as corrugated periodical grating. Sensitivity and characteristics of such structures are shown. Finally, achieved results are considered and analysed.