Ultra-compact wavelength division multiplexing devices using silicon photonic wires for on-chip interconnects

Ultra-compact four-channel wavelength division multiplexing (WDM) devices in add/drop filter and multi-mode interferometer configurations were demonstrated on silicon-oninsulator for future on-chip optical interconnects. Both devices show a crosstalk level ≤-13dB and a footprint ≤0.006mm2. © 2006 Optical Society of America.