Transmission of slow light through photonic crystal waveguide bends

Solomon Assefa, Sharee J. McNab, Yurii A. Vlasov

Research output: Contribution to journalArticlepeer-review


The spectral dependence of the bending loss of cascaded 60° bends in photonic crystal (PhC) waveguides is explored in a slab-type silicon-on-insulator system. An ultralow bending loss of (0.05 ±0.03) dB/bend is measured at wavelengths corresponding to the nearly dispersionless transmission regime. In contrast, the PhC bend is found to become completely opaque for wavelengths corresponding to the slow-light regime. A general strategy is presented and experimentally verified to optimize the bend design for improved slow-light transmission.

Original languageEnglish (US)
Pages (from-to)745-747
Number of pages3
JournalOptics Letters
Issue number6
StatePublished - Mar 15 2006
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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