How do fiber optic cables actually work?

Believe it or not, fiber optic cables have been around since the 1950s, but how do they work? It turns out the answer isn't that complicated.

Fiber-optic cables detect silent whales off Svalbard by tracking pressure waves

A 100-year-old equation and a fiber-optic cable off the coast of Svalbard led researchers to discover they could detect swimming whales—even if they were completely silent. The discovery broadens the ...
Nature

Submarine optical fiber communication provides an unrealized deep-sea observation network

Oceans are crucial to human survival, providing natural resources and most of the global oxygen supply, and are responsible for a large portion of worldwide economic development. Although it is widely ...

Scientists just “teleported” information through a working internet cable, and the strangest part is that normal traffic kept moving

Scientists sent quantum information through a live internet cable while regular traffic kept flowing uninterrupted.
Nature

Citrate polymer optical fiber for measuring refractive index based on LSPR sensor

Fiber optic localized surface plasmon resonance (LSPR) sensors have become an effective tool in refractive index (RI) detection for biomedical applications because of their high sensitivity. However, ...