Abstract

The number of interconnects that can be provided by any optical interconnect system is fundamentally limited by Gabor’s theorem¹ to AΩ/λ², where A is the hologram area, Ω is the solid angle of the beam spread, and λ is the optical wavelength. Even with thin computer-generated holograms (CGHs), this fundamental limit can be achieved for space-invariant interconnects or for a single-source broadcasting information to many detectors (e.g., clock distribution). Several CGHs have been fabricated by electron-beam lithography for these types of application. For example, one experimental CGH is designed to connect 64 sources to 256 detectors in a space-invariant pattern.

© 1987 Optical Society of America