Title :
Optimum pump pulse selection for demultiplexer application of four-wave mixing in semiconductor laser amplifiers
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
We report on an analysis of four-wave mixing in semiconductor laser amplifiers used for demultiplexing time-division multiplexed data streams at ultra-high bit rates. The analysis is focused on the optimum control pulse energy and width with respect to the switching efficiency, channel crosstalk, and jitter tolerance. We use a simple model of the time resolved gain saturation and four-wave mixing. It turns out, that an optimum pulse energy exists with respect to the switching efficiency. The requirements on the pulse width are contrary for the channel crosstalk and the jitter tolerance. Results for an optimum system design are presented.<>
Keywords :
demultiplexing equipment; jitter; laser theory; multiwave mixing; optical pumping; optical saturation; semiconductor device models; semiconductor lasers; channel crosstalk; demultiplexer application; demultiplexing time-division multiplexed data streams; four-wave mixing; jitter tolerance; optimum control pulse energy; optimum pump pulse selection; optimum system design; pulse width; semiconductor laser amplifiers; switching efficiency; time resolved gain saturation; ultra-high bit rates; Crosstalk; Demultiplexing; Four-wave mixing; Jitter; Laser modes; Pulse amplifiers; Pump lasers; Semiconductor lasers; Semiconductor optical amplifiers; Space vector pulse width modulation;
Journal_Title :
Photonics Technology Letters, IEEE
