Sumitomo Electric released a press statement to confirm their status as the first company to mass produce optical Thunderbolt cables.
Current implementations of Thunderbolt operate electronically which pose serious limitations on how far they can effectively transmit. The company currently offers metal-based cables up to a length of approximately 10 feet. With the transition to fibre, Sumitomo will begin manufacturing cables up to 100ft in length.
This all comes at the expense of an extra centimeter added in length to each end of the cable. Darn, how will I ever survive? All kidding aside, optical cables do have a serious drawback compared to their electric counterparts. Optical cables are currently unable to provide power to attached devices. This could prove highly annoying if your device requires somewhere below the rated 10W of bus power. This cable will not work in every situation.
There is currently no discussion of expected cost nor is there discussion of how cheap Monoprice will undercut them. Troll lol-lol… lol-lol. Okay, so not all kidding aside.