April 2013
Beginner
480 pages
23h 17m
English
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25 Optical communications, devices and systems
As worldwide communications develop, the radio section of the electromagnetic spectrum is quickly becoming saturated. Even the use of metallic conductors is being overloaded. Wide band analogue and high speed digital signals are extremely bandwidth hungry. The conventional electronic communications services are therefore becoming very expensive to support under such pressures. Historically, communications have been driven to higher and higher frequencies in order to meet this growing demand. Light beams that can be simply switched on and off, or even deflected, have long been used for low speed signalling purposes, but now the concept of guided light energy using optical glass or plastic is set ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.