Abstract

Semiconductor Optical Amplifier (SOA) has been early recognised as being of great interest for many kind of applications in future optical networks. However, despite the large effort of research carried out worldwide, one could think that SOA has not kept all its promises since it is not still introduced in operating systems. It turns out now that SOA was a rather complex device to develop and required new advances which have taken some time to emerge. However, to day SOAs show performances which would be considered unthinkable 4 years ago. These improvements in performances are not only due to the progress of technology but also to the emergence of new concepts. Three important concepts have been introduced during the 5 past years in the field of SOA and have contributed to the take off of their performances.

© 1996 Optical Society of America

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References

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