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10-Gb/s Wavelength and Pulse Format Conversion Using Four-Wave Mixing in a GaAs Waveguide

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4 Author(s)
Apiratikul, P. ; Dept. of Electr. & Comput. Eng., Univ. of Maryland, College Park, MD, USA ; Astar, W. ; Carter, G.M. ; Murphy, T.E.

We demonstrate the simultaneous conversion of wavelength and nonreturn-to-zero to return-to-zero (RZ) format at 10 Gb/s, using four-wave mixing in a passive GaAs bulk-waveguide. A conversion efficiency of -28 dB (idler output relative to signal output) and a conversion bandwidth of 48 nm could be achieved in this waveguide, which was fabricated in a single photolithographic step. The conversion efficiency is also characterized and compared with simulated results. The converted RZ on-off keying (RZ-OOK) signal demonstrated a 10-9 bit-error-rate receiver sensitivity penalty of 1 dB relative to baseline RZ-OOK.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 12 )