Optical fiber
Videos
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers are widely used in fiber-optic communication, where they permit
A bundle of optical fibers
A TOSLINK fiber optic audio cable with red light shining in one end and out the other
Colladon's "light fountain"
A wall-mount cabinet containing optical fiber cables. The yellow cables are single mode fibers; the orange and aqua cables are multi-mode fibers.
Laser
Videos
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser originated as an acronym for light amplifi
A researcher working on an optical system
A telescope in the Very Large Telescope system producing four orange laser guide stars
A laser can produce a very narrow beam of light of a single wavelength, in this case, green.
A helium–neon laser demonstration. The glow running through the center of the tube is an electric discharge. This glowing plasma is the gain medium for the laser. The laser produces a tiny, intense spot on the screen to the right. The center of the spot appears white because the image is overexposed there.