High-Density Optical Interconnection Based on Free Space No

Optical interconnects are required for high speed opto-electronic packaged computing systems for fast image processing for missile interception and fast target identification. However, existing free space optimal interconnection suffers from diffraction limitation of interconnect line density and requires many large and sophisticated beam collimation, focusing, interconnect reconfiguration elements. It is preferred to have small interconnection beams and with Large interconnection Hesitance. Such requirement is not possible to achieve by conventional Gaussian optical beams propagating in free space. New Span Opto-Technology Inc. proposes herein high-density optical interconnection based on free-space non-diffracting beams. The diffraction contribution of the non-diffracting bean permits the bean to propagate in free space for a substance wily Large distance without significant beam size broadening. The non-diffracting beam is like a confined been in free space. It is like using an invisible fiber in free space. It offers s~n~taneously the advantages of free space interconnects and guided-wave interconnects incll~;ng cross-over interconnection, low propagation and coupling loss, and high interconnect line density. Using the Nun non-diffracting beam makes the laser tr~n~nitter packaging compact. It further eliminates the need for focusing lenses at photodetectors. Phase I research will demonstrate the feasibility of the proposed non-diffracting beam concept.