Patent ID: 8731348

Claim:
A non-contacting rotary joint for transmitting an input signal guided within an input optical waveguide, said rotary joint comprising: an electrical transmission line and a probe; the electrical transmission line further having an even number N≧4 of equal length electrical transmission line segments; each electrical transmission line segment having a feeding point and a termination; wherein the optical waveguide is connected to an optical distribution network comprising at least one optical power splitter, splitting said input signal into individual signals of equal optical power and optical transmission lines for forwarding said individual signals to opto-electrical converters; each opto-electrical converter forwarding an electrical signal to drivers; each driver feeding one or two electrical transmission line segments; and the lengths of the optical transmission lines are adjusted so that the propagation. time of the optical signal from the end of the input optical waveguide to the end of each individual optical transmission line is approximately the same.