%0 Journal Article %A Junfeng Song and Xianshu Luo and Qing Fang and Lianxi Jia and Xiaoguang Tu and Tsung-Yang Liow and Mingbin Yu and Guo-Qiang Lo %D 2012 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 69, 2012 %T Silicon-based Low-Power Reconfigurable Optical Add-Drop Multiplexer (ROADM) %U https://publications.waset.org/pdf/292 %V 69 %X We demonstrate a 1×4 coarse wavelength division-multiplexing (CWDM) planar concave grating multiplexer/demultiplexer and its application in re-configurable optical add/drop multiplexer (ROADM) system in silicon-on-insulator substrate. The wavelengths of the demonstrated concave grating multiplexer align well with the ITU-T standard. We demonstrate a prototype of ROADM comprising two such concave gratings and four wide-band thermo-optical MZI switches. Undercut technology which removes the underneath silicon substrate is adopted in optical switches in order to minimize the operation power. For all the thermal heaters, the operation voltage is smaller than 1.5 V, and the switch power is ~2.4 mW. High throughput pseudorandom binary sequence (PRBS) data transmission with up to 100 Gb/s is demonstrated, showing the high-performance ROADM functionality. %P 945 - 948