We demonstrate an all-optical wavelength conversion of a return-to-zero differential phase-shift keying (RZ-DPSK) signal using four-wave mixing in a quantum-dot semiconductor optical amplifier. We successfully achieved low penalty operation of 0.56 dB using 40-Gb/s RZ-DPSK signal.
Published in:
Photonics Technology Letters, IEEE
(Volume:23
,
Issue:
10
)
Date of Publication: May15, 2011