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Opt Express. 2007 Dec 24;15(26):17631-8.

Chirp-enhanced fast light in semiconductor optical amplifiers.

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  • 1Department of Electrical Engineering and Computer Science, University of California, Berkeley, California 94720, USA. sedgwick@eecs.berkeley.edu


We present a novel scheme to increase the THz-bandwidth fast light effect in semiconductor optical amplifiers and increase the number of advanced pulses. By introducing a linear chirp to the input pulses before the SOA and recompressing at the output with an opposite chirp, the advance-bandwidth product reached 3.5 at room temperature, 1.55 microm wavelength. This is the largest number reported, to the best of our knowledge, for a semiconductor slow/fast light device.

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