Who is going to be the first manufacturer to make a Fibre Optic purifier?

Op are you taking about Fresnel reflection in fiber optics when transmitting signal via light?  Or you are still talking about Ethernet purification via fiber optics?

@lanx0003 

Indeed. Reflections in fibre optics. Not Ethernet purification via fibre. I'm surprised nobody has jumped on the bandwagon selling a polishing kit for audiophiles or an audiophile fibre optic purifier / cleanup / anti-reflection device.

Cheers.

I think the internal reflection is a part of the design for guiding the light within a fiber optics cable. If you have the back reflections due to a bad connector or spices that can be taken care of by simply replacing the cable.  I’m guessing because practically speaking, it hasn’t imposed actual effect on the sound quality so … but if it does you are given away free idea for the manufacturer. 

@lanx003

Indeed. A fix for a problem that doesn't exist. The problem for replacing a cable for me is it goes through two walls and is very carefully managed. I suppose I could talk one of my BT (UK) mates to test and polish it for me. :)

https://www.smallgreencomputer.com/collections/systemoptique

This link goes to the fiber optic items made by Small Green Computer in New Hampshire, USA. Fiber optic cabling may reduce interference relative to coax cable if there is a long run from a modem to hifi equipment, purportedly. However, I have not seen measurements to support this assertion.