Loss analysis for a two wire optical waveguide for chip-to-chip communication.

We propose an optical interconnect system for chip-to-chip communication using gold bond wires as a two wire waveguide. Here the loss of such a waveguide is determined for near-IR wavelengths, for different wire sizes and configurations, and show that we can achieve transmission loss coefficients less than 0.4 mm(-1) (1.7 dB/mm) making chip-to-chip optical communication possible using two-wire transmission lines made of standard gold bond wires. Such an optical waveguide scheme would greatly simplify inter-chip optical communication compared with existing waveguide concepts.