Photonic devices–chips that send and receive data-carrying light signals–are usually made from exotic, costly semiconducting materials. Devices made from silicon would be orders of magnitude cheaper and could drastically reduce the cost of bandwidth. Now Luxtera, in Carlsbad, CA, is offering the first commercial optical cable made with silicon photonics. Intended for use in data centers, the cable can transmit 40 gigabits of data per second but costs no more than some existing 20-gigabit-per-second optical cables.
Cost: Less than $1,000 for a 300-meter, 40-gigabit cable
Geoffrey Hinton tells us why he’s now scared of the tech he helped build
“I have suddenly switched my views on whether these things are going to be more intelligent than us.”
ChatGPT is going to change education, not destroy it
The narrative around cheating students doesn’t tell the whole story. Meet the teachers who think generative AI could actually make learning better.
Meet the people who use Notion to plan their whole lives
The workplace tool’s appeal extends far beyond organizing work projects. Many users find it’s just as useful for managing their free time.
Learning to code isn’t enough
Historically, learn-to-code efforts have provided opportunities for the few, but new efforts are aiming to be inclusive.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.