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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1993),
  • paper CThH3

2.5-Gb/s optical gating with high on/off ratio by use of SOAs in Mach-Zehnder-interferometers

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Abstract

Semiconductor optical amplifiers (SOAs) have recently attracted considerable interest as gates in high capacity optical switching blocks.1-3 An attractive feature is the possibility to attain both transparent and compact switching blocks with monolithic integration of waveguides and SOAs.1 Parameters of interest for optical gates are the on/off ratio, the switching speed, the insertion loss, and the power consumption. In general there is a trade-off so a large on/off ratio gives longer switching times (>1 ns) and fast switching causes an increase in the power consumption. Here we demonstrate a method that makes it possible to obtain fast switching (2.5 Gb/s), large on/off-ratio (15 dB), and low power consumption (<10 dBmel) at the same time.

© 1993 Optical Society of America

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