Topology and analysis of an N-stage cascaded polymer eight-port microring optical router with 7N channel wavelengths

Abstract

Eight-port optical routers are widely used in cluster-mesh photonic networks-on-chip (NoC). By using 24 groups of cross-coupling two-ring resonators, a 1-stage 8-port polymer optical router is proposed, which can optically route 7 channel wavelength data streams along definite path in two-dimensional (2D) plane. Under the selected 7 channel wavelengths, the insertion losses along all routing paths are within 0.02–0.58 dB, the maximum crosstalk of all routing operations is less than −39 dB, and the device footprint size is about 0.79 mm². Then, a universal novel structure and routing scheme of N-stage cascaded 8-port optical router are presented, which contains 7N channel wavelengths. Because of the good scalability in wavelength, this device shows potential application of wideband signal routing in optical NoC.

Keywords

Insertion Loss / Resonance Wavelength / Optic Express / Channel Wavelength / Channel Waveguide