Design and fabrication of a monolithically integrated AWG-based optical pulse shaper

We present design, fabrication and first characterization results of an InP-based integrated optical pulse-shaper. An AWG with 50GHz channel spacing is designed to split the input signal from a mode-locked laser. The AWG has 20 output channels and covers 8nm bandwidth. The phase and amplitude in each channel is controlled using electro-optic phase modulators and SOAs. The light reflects back on a facet end with an HR-coating, is recombined in the AWG and returns through the input waveguide. The double-pass design makes the chip size compact, i.e. 6x6mm2. Fabrication has been carried out in the framework of EuroPIC multi-project wafer run.