Publications

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

Chow, Edmond; Lin, Shawn-Yu L.; Wendt, J.R.; Johnson, S.G.; Joannopoulos, J.D.

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 λ ∼ 1.55 μm. The measured η spectrum also agrees well with a finite-difference time-domain simulation. © 2001 Optical Society of America.