Demonstration of a curved sidewall grating demultiplexer on silicon

We experimentally demonstrate a new type of waveguide multiplexer device designed for silicon photonics, with a crosstalk level as low as -35 dB and an operational wavelength range of 300 nm. A compact device footprint of only 100 x 160 mu m(2) offers an excellent potential for integration with other silicon nanophotonic circuits. (C) 2012 Optical Society of America