Can slide emitting optics is bright or brighter than neon?
Fiber optics can be made to be brighter than neon but merely for very short distances. Let an illustration, of a garden hose: making tiny holes along the hose can cause a sizeable quantity of water gushing out of the holes closer the tap, and for a distance which will depend upon the size of the holes. When we make the holes larger a greater quantity of water will matter, but only for a shorter distance till these only trickles.
There is a limit to the amount of water which can be made to pass by a hose, a limit specified by the viscosity of water and the material of the pipe. We simply cannot raise pressure infinitely. The limit on the amount of light travelling by a fiber optic is also imposed by physics: the actual material of that the optic is made and the intrinsic qualities of light. There is a power density limit to all materials. In several systems, particularly with late generation purpose made metal halide illuminators that luminance values greater or equal to neon may be acquired for lengths up to few meters. The sizeable cost of those systems while compared to neon makes the proposal impractical in several cases.