Abstract
In recent years, all-optical switching techniques have shown enormous potential for performing key networking functions, using fiber and semiconductor devices.1 In parallel with these advances we have been developing practical solutions to optical pulse delay line technology. Such technology has numerous applications in, for example, multiplexing (low-speed) data streams to ultrafast rates (>100 Gbit/s), coding optical packets in ultrafast self-routing networks, rapid reconfigurable timeslot allocation, and generating arbitrary pulse patterns for the control of optical logic devices.2–4 This paper describes active delay line devices constructed using hybrid semiconductor/passive optical waveguide technology. The application of these devices to derivation of a timing reference pulse and all-optical header recognition and self-routing of ultrafast packages with multibit addresses has been demonstrated previously.3,5
© 1996 Optical Society of America
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