Theory of high-density low-cross-talk waveguide superlattices

Nan Yang; Huashan Yang; Hengrun Hu; Rui Zhu; Shining Chen; Hongguo Zhang; Wei Jiang

doi:10.1364/PRJ.4.000233

Journals >Photonics Research >Volume 4 >Issue 6 >Page 233 > Article

Photonics Research
Vol. 4, Issue 6, 233 (2016)

Theory of high-density low-cross-talk waveguide superlattices

Nan Yang^1、2、3, Huashan Yang^1、2、3, Hengrun Hu^1、2、3, Rui Zhu^1、2、3, Shining Chen^1、4, Hongguo Zhang^1、2、3, and Wei Jiang^{1、2、3、*}

Author Affiliations

¹National Laboratory of Solid State Microstructures, Nanjing 210093, China

²College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China

³Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

⁴College of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China

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DOI: 10.1364/PRJ.4.000233 Cite this Article Set citation alerts

Nan Yang, Huashan Yang, Hengrun Hu, Rui Zhu, Shining Chen, Hongguo Zhang, Wei Jiang. Theory of high-density low-cross-talk waveguide superlattices[J]. Photonics Research, 2016, 4(6): 233 Copy Citation Text

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Schematic drawing of waveguide superlattice structure. Direct coupling path and indirect coupling paths are illustrated by dashed and solid lines.

Fig. 1. Schematic drawing of waveguide superlattice structure. Direct coupling path and indirect coupling paths are illustrated by dashed and solid lines.

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Fig. 2. Dielectric constant profile for (a) the superlattice, (b) an isolated waveguide #4, and (c) the dielectric c perturbation corresponding to the perturbation potential [ΔA]m4.

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Fig. 3. Statistics of transmission fluctuation (indicated by error bars) for an SC5 superlattice, a=800 nm, σ=2 nm, lc=30 nm, L=500 μm.

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Fig. 4. Statistics of transmission fluctuation for an SC5 superlattice (same parameters as Fig. 3 except L=1 mm).

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Fig. 5. Statistics of transmission fluctuation for an SC5 superlattice (same parameters as Fig. 3 except L=3 mm).

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Fig. 6. Distribution of T32 at given wavelength (nm) and L (μm). Plots in each row have the same λ; plots in each column have the same L.

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Fig. 7. Statistical characteristics of the transmission T32(λ,L) as a function of L. (a) Standard deviation of T32 over all random configurations at three individual wavelengths. (b) Statistical characteristics of T32 calculated over all random configurations of roughness and over all wavelengths.

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Fig. 8. Transmission spectra of T32 for five random configurations. (a) L=500 μm, (b) L=1 mm, (c) L=3 mm.

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Nan Yang, Huashan Yang, Hengrun Hu, Rui Zhu, Shining Chen, Hongguo Zhang, Wei Jiang. Theory of high-density low-cross-talk waveguide superlattices[J]. Photonics Research, 2016, 4(6): 233

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