Photonic crystal devices for wavelength division multiplexing an...

Photonic crystal based nanophotonic devices have been studied for various applications. One important type of devices are optical add-drop multiplexers (OADMs) that consist of photonic crystal cavities and waveguides. We show some novel device architectures and concepts to achieve better performance for such devices and discuss the non-vanishing backscattering issue. We fabricate high-quality photonic crystal waveguides on silicon-on-insulator substrates toward the ultimate goal of implementing