Fast and precise wavelength switching of an SG-DBR laser for 1.07-b/s/Hz DVMM systems

Fast (<100-/spl mu/s) and precise (/spl plusmn/2-GHz) wavelength switching of an SG-DBR laser with fast feedback frequency control is confirmed by using 1.07-bit/s/Hz DWDM of 40-Gb/s pre-filtered inverse-RZ signals.