Figure 3: Measured transmission spectra and their statistics for waveguide superlattices.
From: High-density waveguide superlattices with low crosstalk
(a–b) SC3 superlattice made by ma-N resist (a=1 μm, L=200 μm); (c–d) SC5 superlattice made by ma-N resist (a=0.8 μm, L=200 μm); (e–f) SC5 superlattice made by HSQ (a=0.8 μm, L=500 μm). Only adjacent channels Ti,i±1 plus the worst crosstalk channel are shown in a, c and e. Different colours mark different output ports, whose indices are shown in the legends. The spectral statistics of all transmission channels are shown by error bars in b, d and f, respectively. The colour/symbol for each output channel is shown in the legend.
