Inter-band wavelength conversion of 25 GHz-spaced 1.03 Tbit/s (103/spl times/10 Gbit/s) DWDM signals with small guard band and low crosstalk in PPLN waveguide

Simultaneous wavelength conversion of 25 GHz-spaced, 1.03 Tbit/s (103/spl times/10 Gbit/s) DWDM signals from C-band to L-band was successfully demonstrated with a small guard band of 8 nm (4 nm/spl times/2) and converted signal Q-factors of more man 15.6 dB.