Pulse-carver-free 50-Gb/s RZ-DQPSK generation using hybrid photonic-integrated electroabsorption modulators
21 September 2008
We report generation of 50-Gb/s RZ-DQPSK signal, without an external pulse carver, using an electroabsorption modulators-based hybrid modulator. We demonstrate the first error-free 50-Gb/s RZ-DQPSK generation using a semiconductor-based modulator with low drive voltages of 2.3 V.