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Quantitative analysis of bending efficiency in photonic-crystal waveguide bends at λ = 1.55 μm wavelengths

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Abstract

Based on a photonic-crystal slab structure, a 60° photonic-crystal waveguide bend is successfully fabricated. Its bending efficiency within the photonic bandgap is measured, and near 100% efficiency is observed at certain frequencies near the valence band edge. The bending radius is 1 μm at a wavelength of λ1.55 μm. The measured η spectrum also agrees well with a finite-difference time-domain simulation.

© 2001 Optical Society of America

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