Title :
5 Gbit/s transmission system using a MQW semiconductor optical amplifier as an amplitude modulator
Author :
Yao, J. ; Walker, N.G. ; Hunter, C. ; Walker, G.R. ; Sherlock, G.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
A 5 Gbit/s transmission system experiment using a multiple quantum well (MQW) semiconductor optical amplifier as an external modulator is demonstrated over 100 km of conventional single mode fibre. A detection sensitivity of -34.6 dBm was obtained using an optically preamplified receiver. It is shown that a MQW laser operated in high saturation and driven by a preequalised RF amplifier, is capable of digital modulation beyond 5 Gbit/s. The effect of residual chirp introduced by the modulator was investigated in 5 Gbit/s amplitude shift keying (ASK) transmission experiments
Keywords :
amplitude modulation; optical communication equipment; optical links; optical modulation; semiconductor junction lasers; 5 Gbit/s; ASK; MQW laser; MQW semiconductor optical amplifier; amplitude modulator; amplitude shift keying; detection sensitivity; digital modulation; external modulator; high saturation; multiple quantum well; optically preamplified receiver; preequalised RF amplifier; residual chirp; single mode fibre; transmission system experiment;
Conference_Titel :
Sources for Very High Bit Rate Optical Communication Systems, IEE Colloquium on
Conference_Location :
London
