Compound cavity measurement of transmission and reflection of a tapered single-line photonic-crystal waveguide

Anne Talneau (1) , Mikael Mulot (2) , Srinivasan Anand (2) , Philippe Lalanne (3)

1 LPN - Laboratoire de photonique et de nanostructures
2 KTH - KTH Royal Institute of Technology [Stockholm]
3 Laboratoire Charles Fabry de l'Institut d'Optique / Naphel

Measurements on a single-line defect photonic crystal waveguide demonstrate propagation losses as low as 140 cm-1 and coupling efficiency to a ridge access guide increased from 20% to 50% thanks to a tapered access. These results are obtained by analyzing the internal cavities created by residual reflections, hence, requiring a single sample. They are nevertheless crosschecked by measurements on distinct samples by the Fabry-Pérot resonance method.

Domains: Optics [physics.optics]

Anne Talneau, Mikael Mulot, Srinivasan Anand, Philippe Lalanne. Compound cavity measurement of transmission and reflection of a tapered single-line photonic-crystal waveguide. Applied Physics Letters, 2003, 83 (16), pp.2577-2579. ⟨10.1063/1.1568821⟩. ⟨hal-00874524⟩