Design and analysis of 2D photonic crystal wavelength routers using micro-ridge and arc waveguides

摘要

Inthispaper,(1x2)T-shapedwavelengthrouterisdevisedontwodimensionalsquarephotoniccrystalslattice.Theconventionaltaperedridgewaveguidesandarcwaveguideofcomparativelylowdielectricconstantareintroducedinthecrystalstructure.Thesewaveguidesfacilitatethelighttransmissionfromtheinputporttooutputports.ThetransmissionspectrumforthisstructureisanalysedusingFinite-DifferenceTime-Domain(FDTD)approach.Theresultsindicatethatthedesignedroutercanseparatethewavelengthsof1.52micro;mand1.6micro;mwiththepowerefficiencyashighas99.9%.Theminimumcrosstalkobtainedfortherouteris-29.48dB.