Feature Optical Computing: Some Hard Questions H. John Caulfield If wisdom is cumulative, we must ask and distinguish between two hard questions. Is optical computing worth doing? How fast can it happen? Log in or become a member to view the full text of this article. This article may be available for purchase via the search at Optica Publishing Group. Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits. Publish Date: 01 April 1986 Add a Comment Please enable JavaScript to view the comments powered by Disqus.