DEVELOPMENT OF FREE-SPACE DIGITAL OPTICS IN COMPUTING

To someone with an electronics or computer science background, many of optical computing's concepts may seem outlandish. Optics grew out of applied physics and still retains many aspects of that heritage. This is in contrast to digital computing's roots in electronics. Recent eff orts have been made to bring optical computing more in line with micro electronic engineering. Perhaps that will speed the acceptance of opto -electronic technology. The authors describe their research into optic al devices for data communication. They are investigating free-space o ptics-the propagation of optical signals through the air using lenses and mirrors to focus and redirect the beams. The advantages of free-sp ace optics, derive from their large spatial bandwidth and physical cha nnel density. Like the human eye, which takes in an enormous amount of information in parallel, a low-cost lens can provide more than a mill ion independent connections. The authors aim to exploit optoelectronic computing's capability for such massively parallel data transfers.