40-Gb/s optical buffer design and simulation

This work proposes a new approach to create optical random access memory for 40-Gb/s optical telecommunications. Results of simulations that investigate the maximum achievable delay are also presented. The design combines silica waveguides for low loss recirculation with InP-based semiconductor devices for high gain and fast switching. This approach provides smaller devices in comparison to fiber-based alternatives and lower loss recirculation than competing material systems.