Characterization of photonic crystal cavities: investigation on the coupling between microresonators and waveguides

In this work, we report on properties of two-dimensional photonic crystal (2D PC) based microcavities fabricated on InP suspended membranes. Their characterization is based on the observation of diffracted photoluminescence (PL). Comparison is made with theoretical calculations obtained by a plane wave method. In section I, the samples fabrication and the characterization methods are described. In section II, we investigate the influence of the PC surfacic air filling factor (f) on the spectral properties of PC defect cavities. Section III is about the analysis of single line defect waveguides designed as a closed cavity. First results on the coupling between a cavity and a waveguide are lastly shown in section IV.