Fiber optics and Optical fiber

Fiber optics noun - The transmission of light signals via glass fibers.

Optical fiber and fiber optics are semantically related. in light transmitted through fibers topic. In some cases you can use "Optical fiber" instead a noun phrase "Fiber optics".

Optical fiber noun - A very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images.

Fiber optics and optical fiber are semantically related. Sometimes you can replace phrase "Fiber optics" with "Optical fiber", this phrases are similar.