AWGR-based all-to-all optical interconnects using limited number of wavelengths

This work discusses all-to-all interconnections for N nodes using W wavelengths and arrayed waveguide grating routers (AWGRs). This scheme allows for reducing the optical wiring by a factor of W(N-l)/2N and isolating the crosstalk. The benefits of optical wiring savings and crosstalk reductions are analyzed in detail. The performance improvement using such interconnection architectures is verified by simulation based benchmarking.