112-Gb/s monolithic PDM-QPSK modulator in silicon

• DOI: 10.1364/oe.20.00b624
• Publication Date: 2012-12-10T15:27:45Z
• Authors: Po Dong; Chongjin Xie; Long Chen; Lawrence L. Buhl; Young-Kai Chen
• Keywords: Polarization-division multiplexing; Polarization rotator; Modulation (music)

We present a monolithic dual-polarization quadrature phase-shift keying (QPSK) modulator based on silicon photonic integrated circuit (PIC). This PIC consists of four high-speed modulators, polarization rotator, and beam combiner. A 112-Gb/s polarization-division-multiplexed (PDM) QPSK modulation is successfully demonstrated.