Numerical analysis of the effect of small geometrical imperfections on photonic crystal wires

作者：Blanco Rodriguez Francisco J; Villatoro Francisco R^*; Ramos Juan I

来源：Applied Mathematics and Computation, 2012, 218(10): 5989-5993.

DOI：10.1016/j.amc.2011.11.081

• Finite-element methods
• Manufacturing imperfections
• Photonic crystal wires
• Multimode optical fibres

Imperfections in the geometry of photonic crystal wires (PCWs) are always a result of current manufacture techniques. The influence of such random defects on the propagating modes in PCWs is studied computationally by means of a full vectorial finite-element method using a perfectly matched layer (PML) as absorbing boundary condition, and the numerical results show a large sensitivity of the birefringence to the geometrical defects in the transversal section of the fibre. It has also been found that imperfections in PCWs have a greater effect on wave propagation than those in photonic crystal fibres (PCFs).

• 出版日期2012-1-15