Abstract
This invention relates to optical energy transmitting devices and to a method of making same. More particularly, the invention relates to thin elongated optical devices of novel construction and arrangement for enabling the efficient separate or simultaneous transmission, as desired, of optical energy in the form of different independent but readily distinguishable electromagnet modes of energy propagation from one end thereof to the other in accordance with the character of light being received from suitable light source means disposed adjacent one end thereof for transmission to suitable receiving and detecting means disposed adjacent the opposite end thereof. The invention also includes the method of making same.