Optical tunable delay for OTDM demultiplexing with reduced component count

We demonstrate demultiplexing of optical time division multiplexed (OTDM) signals to lower bit rates based on four wave mixing (FWM) in highly nonlinear fiber (HNLF). An all-optical tunable delay is implemented for selecting the desired OTDM channel. Both optical delay and demultiplexer are realized in a single piece of HNLF, thus reducing the component count. We show 40 Gb/s to 4 × 10 Gb/s demultiplexing and error free operation for the four channels.