WASET
    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,  Silicon-based Low-Power Reconfigurable Optical Add-Drop Multiplexer (ROADM).   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2012, vol. 69(9). 945 - 948
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/292.