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Chirp compensation capability of a semiconductor laser amplifier

Medeiros, M. C. R. ; O’Reilly, J.

Electronics Letters Vol. 27, Nº 8, pp. 649 - 649, April, 1991.

ISSN (print): 1350-911X
ISSN (online): 0013-5194

Journal Impact Factor: 0,930 (in 2014)

Digital Object Identifier: 10.1049/el:19910407

Abstract
Performance improvement is reported resulting from incorporating a semiconductor laser amplifier (SLA) as a post-transmitter-amplifier in long-haul directly modulated optical systems operating in the 1.5 mu m region. This improvement arises from reduction of the chirp produced by the semiconductor laser as the signal passes through the SLA. Eye closure penalty improvements in excess of 5 dB are observed for an illustrative long-haul 4.8 Gbit/s system.