Interconnecting processing units of a stored program controlled system using wavelength division muliplexed free space optics

摘要

Internal communication signals in a stored program controlled system comprising a plurality of units configured to process signals are provided by an optical beam line which is proximal to all of the plurality of units. The system of this invention uses Wavelength Division Multiplexing techniques to provide a plurality of logically independent subchannels over a single shared free space optical beam line.