Nondestructive index profiling of long period gratings in photonic crystal fibres
Journal
Optical and Quantum Electronics
Date Issued
July 2006
Author(s)
Abstract
A numerical model of a long period grating in photonic crystal fibre fabricated by an electric arc is proposed that allows for the spectral characterisation of the grating. In the combination with the suggested model of the photonic crystal and the experimentally recorded grating growth it is used to find the index change induced by the electric arc.