#$%^&*AU2015201154A120151001.pdf#####ABSTRACT A fiberoptic waveguide connectable to an optical receiver, and a plurality of electro-optical elements optically coupled to the waveguide. The electro-optical elements each have a first electrode with a first polarity, and a second electrode with a second polarity. A light-emitting diode is linked to the first electrode and configured for illuminating the waveguide responsively to an electrical potential between the first electrode and the second electrode at a respective wavelength. The waveguide may be incorporated into a catheter for insertion into a subject, such as a cardiac catheter.2/4 41 41 41 37 TO OPTICAL 0 1 2 3 n-1 n n+1 RCVR 43 45 49 47 ' ---- 51 53 53 Fig 2 45 47 45 47 45 47 37 n-1 57 n 59 n+1 61 49 69 49 TO OPTIC 63 65-1 TO OPTIC 43 RECEIVER TERMINATOR 6 Fig. 3
