O'Reilly logo

Consumer Electronics by S. P. Bali

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

CHAPTER 41

FIBRE OPTICS

During the last hundred years a series of inventions have enabled telecomunication links to be built with ever-increasing capacity. The early telegraph links carried signals at speeds up to about 30 words per minute, or about 15 bits per second. Some of the fibre-optic cable being installed today in the longdistance trunk networks has the capacity to carry signals at a speed of 2.4 Gbps. The theoretical capacity of these hair-thin glass fibres is tremendous. Much fibre optic cable is being installed today, mainly in the long distance and inter-office networks. Over the next ten years, fibre optical cable will be progressively installed as local loops in some areas. In the meantime, however, a multitude of different ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required