Yes, in fact they are used more and more, for high-speed data transmission.
Optic Fibers
If you mean Fiber Optics, then those are used to transmit data usually on a DSL line, to the ISP and back to you.
Synthetic Fibers have a number of qualities which natural fibers do not; perhaps the most important being that they make profits for large chemical industries.
The fiber optic backbone can mean different things depending on the service being used. Generally, however, it simple refers to that fiber optic cable traversing the main path or route in that part of the overall network. It differs with a lateral, which would run from a backbone splice point to typically an end use premise (ie building or cell site). Backbone cables will typically be built with high fiber counts and laterals will have relatively fewer fibers in the cable since it will have less use.
a signal is beamed as a light through the fiber optics and when they are relayed to the other side a computer decodes the signal that's also how fiber optic TVs work
It is a device used to measure power in an optical signal. It is usually done to test optic fibers. Here is where you can get a lot more information on it: http://en.wikipedia.org/wiki/Optical_power_meter
A splicing machine is used in telecommunications and fiber optic networks to join two optical fibers together. The splicing process creates a low-loss connection that allows data to be transmitted efficiently over long distances.
Heavy water is sometimes used in fiber optic cables as a coiling fluid, also known as a secondary coating material. It helps to reduce stress on the optical fibers within the cable and provides protection. By using heavy water, the cables can withstand bending and stretching without breaking.
Fiber optic scopes are used for inspection work, usually in places where it would be difficult to see otherwise. Their most common use is to help view small components in tightly packed equipment.
The Roman numeral system is still being used today because it is the numerical aspect of the Latin language which is still being used today.
yes it is still used
Fiber optic cables are among the thickest, as they are made up of multiple layers of protective coatings and insulation. These cables are used for long-distance data transmission and are designed to protect the delicate glass fibers inside.