A system for multiplexed transmission of different wavelengths of light comprises an array of at least two light sources whose images are formed on the end of an optical fibre. The images have displaced spectra so that a different part of the spectrum of each light source is imaged on to the end of the...http://www.google.com.au/patents/US4652080?utm_source=gb-gplus-sharePatent US4652080 - Optical transmission systems
