Demonstration of 112-Gbit/s DP-QPSK modulation using InP n-p-i-n Mach-Zehnder modulators

We have successfully demonstrated 112Gbit/s DP-QPSK modulation using a wavelength tunable pulse carver module, in which a wavelength tunable DFB laser array (TLA) and an InP n-p-i-n Mach-Zehnder modulator are co-packaged, and a dual-drive InP Mach-Zehnder IQ modulator module.