Topology optimisation of slow light coupling to photonic crystal waveguides

• DOI: 10.1049/el:20071509
• Publication Date: 2007-08-17T14:07:36Z
• Authors: L. Yang; A.V. Lavrinenko; L.H. Frandsen; P.I. Borel; A. Têtu; J. Fage-Pedersen
• Keywords: 0103 physical sciences; 01 natural sciences

The slow light coupling efficiency in photonic crystal waveguides is enhanced by using the topology optimisation method. As much as 5 dB improvement transmission can be achieved proximity of spectrum cutoff. Moreover, resemblance resulting two optimised spectra from different initial configurations indicates possible convergence optimisations.