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.
CNET on MSN

The Difference Between Fiber to the Home (FTTH) and 'Fiber-Powered' Internet

The Difference Between Fiber to the Home (FTTH) and 'Fiber-Powered' Internet ...
Variety

T-Mobile Fiber Delivers Ultra-Fast Home Internet Speeds: Here Are the Best Deals To Shop Online

Plans start at $45/month, with Fiber AutoPay; plus taxes/fees, for unlimited fiber-optic internet data, plus installation is included. If you purchase an independently reviewed product or service ...
CNET

T-Mobile Fiber is the Ultimate Home Internet for Power Users

The internet powers just about everything we use at home these days: laptops for work, TVs for streaming, PCs and consoles for gaming–even our dishwashers and washing machines. That makes it more ...