Multiple diffraction of massive fanout optical interconnects based on multiplexed waveguide holograms

摘要

Abstract: Experimental results of 1-to-2 intra-plane and of 1-to-32 inter-plane v-shaped fanouts are delineated. Coupling efficiencies of 48% for surface-normal and of 45% for near-surface- normal inter-plane fanout beams are theoretically and experimentally confirmed. The influence of the angular fluctuation of a device having two multiplexed waveguide holograms with film thickness of 15 $mu@m and index modulation of 0.04 is studied. The angle between the two grating vectors is determined to be less than 26$DGR to keep the near-surface-normal fanout beams. !14