Beam splitter and combiner based on Bloch oscillation in a spatially modulated waveguide array
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We numerically investigate the light beam propagation in periodic waveguide arrays which are elaborately modulated with certain structures. We find that the light beam may split, coalesce, deflect, and be localized during propagation in these spatially modulated waveguide arrays. All the phenomena originate from Bloch oscillations, and supply possible method for fabricating on-chip beam splitters and beam combiners.
author list (cited authors)
Zhang, Y., Belic, M. R., Zhong, W., Wen, F., Guo, Y., Guo, Y., Lu, K., & Zhang, Y.
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