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Sources and detectors for optical fibre communications applications: the first 20 years

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2 Author(s)
Newman, D.H. ; British Telecom, Research Laboratories, Ipswich, UK ; Ritchie, S.

The evolution of semiconductor optical sources and photodetectors for optical communication systems is described. From rudimentary GaAs p¿¿n junction emitters and silicon photodiodes in the mid-1960s, the paper charts progress towards the much more sophisticated multilayer laser structures and III¿¿V avalanche photodetectors being made in the mid-1980s. Technological breakthroughs are identified, as well as some of the major problems that have had to be solved, such as well controlled epitaxial growth and device reliability.

Published in:

Optoelectronics, IEE Proceedings J  (Volume:133 ,  Issue: 3 )