Abstract
We propose a new technique to realize an optical time lens for ultrafast temporal processing that is based on four-wave mixing in a silicon nanowaveguide. The demonstrated time lens produces more than of phase shift, which is not readily achievable using electro-optic phase modulators. Using this method we demonstrate magnification of a signal consisting of two pulses, which allows for temporal measurements using a detector with a bandwidth. Our technique offers the capability of ultrafast temporal characterization and processing in a chip-scale device.
© 2008 Optical Society of America
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