Abstract

We present a high-capacity ultrafast all-optical time demultiplexer that can be employed to retrieve 40 gigabits/second (Gb/s) base-rate channels from a $640\mathrm{Gb}∕\mathrm{s}$ single-polarized signal. The demultiplexer utilizes ultrafast effects of filtered chirp of a semiconductor optical amplifier. Excellent demultiplexing performance is shown at very low switching powers: $+8\mathrm{dBm}$ ($640\mathrm{Gb}∕\mathrm{s}$ data) and $-14\mathrm{dBm}$ ($40\mathrm{GHz}$ clock). The demultiplexer has a simple structure and, in principle, allows monolithic integration.

© 2007 Optical Society of America

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