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Wavelength conversion of subcarrier channels using difference frequency generation in a PPLN waveguide

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6 Author(s)
Cardakli, M.C. ; Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA ; Sahin, A.B. ; Adamczyk, O.H. ; Willner, A.E.
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The authors demonstrate and characterize a transparent all-optical wavelength conversion process for subcarrier-multiplexed channels. Their memoryless /spl chi//sup (2)/:/spl chi//sup (2)/ difference-frequency-generation process uses 1550-nm pumping in a periodically poled lithium niobate waveguide. They achieve penalty-free all-optical wavelength conversion of two 55-Mb/s subcarrier channels. The process shows a >30-dB linear dynamic range for crosstalk-free transparent operation.

Published in:

Photonics Technology Letters, IEEE  (Volume:14 ,  Issue: 9 )