How the fibre communications revolution began

Free-Space link transmitter from 1965/6 using GaAs LED

Free-Space link transmitter from 1965/6. Manchester University Final year project

Free Space link transmitter from 1965/6. Manchester University Final year project – Paul Sinclair & Richard Epworth. Ferranti GaAs Mesa LED driven by a distributed amplifier.

2016: Half a Century of Optical Fibre Communications

2016 was the 50th anniversary of the publication that started it all.

Optical Fibre has transformed our world yet is now almost completely ignored.

The reasons?:

  • It is largely hidden (beneath our streets and oceans).
  • No surviving commercial organisation has an interest in promoting the STL history.
  • Few remember just how poor global communications used to be.

Useful Links

For anyone who enjoyed STL

STL Quarter Century Club


For the full story of optical communication see

"City of Light - The Story of Fiber Optics" by Jeff Hecht


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