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Efficiency flattening and equalization of frequency up- and down-conversion using four-wave mixing in semiconductor optical amplifiers

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9 Author(s)
Contestabile, G. ; Fondazione Ugo Bordoni, Rome, Italy ; Martelli, F. ; Mecozzi, A. ; Graziani, L.
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We show that four-wave mixing in semiconductor optical amplifiers with the use of two orthogonally polarized pumps offers the possibility of frequency conversion with constant efficiency over several terahertz. The same two-pump configuration permits one to convert the signal to lower or higher frequencies with the same efficiency.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 10 )