Integrated high-speed 1/spl times/4 digital Y-branch switch array with passive taper fanouts for fibre interconnection

摘要

An integrated high-speed 1/spl times/4 switch array on an InP substrate using 8 GHz Y-branch switch elements is described. This switch array is suitable for optical time division multiplexing (OTDM) and demultiplexing data at 10 Gbit/s over a wide optical bandwidth. The channel-channel isolation and insertion loss are 18 and 15 dB, respectively, which may be improved by optimisation of the switch design and fabrication techniques.