D.A.O. Davies

TL;DR: In this article, the authors show that gain recovery times of approximately 10 ps are achievable in semiconductor laser amplifiers using an optical beam to speed the gain recovery rate, which should permit high data rate (up to 100 Gbit/s) all optical signal processing applications (e.g., demultiplexing, clock recovery).

TL;DR: The use of semiconductor amplifiers in high speed communications systems is reviewed and the role of carrier density modulation, long believed to be a detrimental effect, and its useful exploitation is paid.

TL;DR: In this article, an all-optical demultiplexing operation using polarisation rotation due to nonlinear effects in a traveling wave semiconductor laser amplifier was performed using a 10 Gbit/s channel.

TL;DR: In this article, the dependence of the gain recovery rate in semiconductor laser amplifiers on optical and electrical bias conditions was measured, and it was shown that rapid recovery is achievable with modest optical bias powers ( ≤ 50 mW).

TL;DR: In this article, the authors demonstrate the transmission of a 4 × 10 Gbit/s OTDM data sequence over two unrepeatered links of 100 km of nondispersion shifted fibre.