This paper reports on the application of an optical tapping technique (Ref.1) to the distribution of broadband analogue signals. The taps use controlled bending of a monomode transmission fibre to couple light into a polymer receptor fibre. Signals may be extracted from the transmission fibre at any point along its length without breaking the fibre. Consequently taps may be installed or removed without taking the fibre out of service.
J. P. Dakin,
M. G. Holliday,
S. W. Hickling,
"Non Invasive Optical Bus For Video Distribution", Proc. SPIE 0949, Fibre Optics '88, (21 September 1988); doi: 10.1117/12.947509; https://doi.org/10.1117/12.947509