The Fabry–Perot resonance technique has been used to determine the propagation losses of planar photonic crystal (PC) waveguides. The structures are patterned into a GaInAsP confining layer on an InP substrate. Losses as low as 11 dB/mm have been measured on a guiding structure with three missing rows. The influence of the PC guide width and air-filling factor is demonstrated.
© 2001 Optical Society of America
A. Talneau, L. Le Gouezigou, and N. Bouadma, "Quantitative measurement of low propagation losses at 1.55 μm on planar photonic crystal waveguides," Opt. Lett. 26, 1259-1261 (2001)