Abstract
Reconfigurable optical interconnection networks can significantly improve the performance of massively parallel processors and high-performance computer networks. Previously, we have demonstrated a single-chip 4×4 reconfigurable optical interconnection network by using arrays of beam-steering vertical-cavity surface-emitting lasers (VCSELs) with integrated photodetectors.1 Different optical interconnections are established by space-division, switching in free-space, i.e., by turning on VCSELs with different steering angles. The steering angle of VCSEL is precisely controlled by photolithographic and etching processes. This scheme requires only an external reflector. However, the interconnection density is limited by the divergence angle of the light emitted from VCSEL. In this paper, we report on the improved performance of the single-chip photonic Banyan network by replacing file planar mirror with an array of focusing mirrors.
© 1996 Optical Society of America
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