Y junctions in photonic crystal channel waveguides: high transmission and impedance matching

S. Boscolo, M. Midrio, T. F. Krauss
2002 Optics Letters  
We investigate the efficiency of transmission through photonic crystal Y junctions and show the importance of matching mode symmetries. Furthermore, we show that by adding tuning holes to the input waveguide it is possible to achieve almost perfect impedance matching, leading ideally to unitary transmission through the junction. The model system is based on a triangular photonic lattice of holes in dielectrics to ref lect experimental reality.
doi:10.1364/ol.27.001001 pmid:18026345 fatcat:n2qaki74dnbmhcaemctwb7ee3m