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We demonstrate for the first time the low penalty cascaded performance of a 1.3mum QD SOA. Eleven passes are feasible for 10Gb/s data while maintaining a Q-factor exceeding 6 for filter-free operation.
We demonstrate the longest unrepeatered and uncompensated SOA-based transmission of 16times10 Gbit/s channels over 140 km single mode (G.652) fiber. We exploit the DPSK modulation format, two commercial SOA devices and a frequency-periodic narrow optical filter.
Performance of tunable buffers based on optical amplifiers and its improvement using gain flattening is analyzed. A simple analytical expression indicates that to store more than a couple of bits unrealistically high gain is required.
Optical parametric chirped pulse amplification provides a promising alternative for amplification of high-power few-cycle pulses. Our objective is to explore the feasibility of this concept in amplifying 7 fs phase-stabilized pulses till 10 TW power.
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