Photonics4All Bookmark Blu-Ray (English)

<p>The purpose of the bookmarks for the project Photonics4all is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).</p> <p>How many Blu-Ray movies can you download through one fibre optic cable?</p> <p>300 movies per second! Submarine communications cables which are laid on the sea bed between land-based stations carry telecommunication signals across the globe underwater. These cables can have total lengths of over 21,000 km and have a capacity of 10 Terabits per second (Tb/s). The information is carried by flashing laser light using a Morse-code like signal through the optical fibre. Nowadays the fibre optic comes straight into our homes to deliver on-line video and TV programmes with fantastic (4K) resolution.</p> <p>In the future, new types of optical switches (rather than electronic switches) made with a recently discovered material graphene will enable 1000 times faster connections.</p> <p>All thanks to progress with Photonics!</p>