The article states "the optical interfaces are seldom if ever used, and are likely to be deprecated in future revisions of the standard." I find this hard to believe, especially after a quick web search shows many commercial products offering optical interfaces, among them Evertz, a very well established company in this market space, and many smaller vendors. I can see that the implementation of optical was probably slower than the electrical interface, but that's to be expected. Another factor is that advances in fiber termination have made it quicker and easier to install fiber in the last few years, leading to more ready and rapid deployment, and an increased "consumer level" demand for fiber connections. This is affected by economies of scale for such products as HDMI and DVI-D links over fiber, which have gone from unheard-of in 2006 to very common now.
It's true that fiber in professional plants is rare, although it won't probably be deprecated. Evertz has a nice selection of fiber/coax converters, the main use is for long distance transmission. Routers, switchers and monitoring equipment have coaxial BNC connectors, a sort of industrial standard.
I don't know if fiber will become more common, but personally I have some doubt -- keep in mind that HDMI and DIV-D are not professional connections. Maybe "likely to be deprecated" should be removed, I don't know U.S. market so much. —Preceding unsigned comment added by 22.214.171.124 (talk) 14:04, 10 May 2008 (UTC)
I see HDSDI over fiber increasing in the future. I work in a building which has HDSDI runs over 100M long which require fiber. Our Utah Scientific routing switcher has fiber inputs and outputs. It takes just a couple of minutes to replace the BNC connector panel with a fiber one and swap out the front card. Also we have dark fiber to the Capitol, White House, Pentagon, State Department for HDSDI over fiber. —Preceding unsigned comment added by 126.96.36.199 (talk) 20:43, 21 June 2009 (UTC)