title: Single-carrier 1-Tb/s PDM-16QAM transmission using high-speed InP MUX-DACs and an integrated OTDM modulator.
abstract: We generated a 1-Tb/s single-carrier PDM-16QAM signal using a single optical modulator with external PDM emulation. To achieve the high symbol rate of 125 Gbaud, we used high-speed InP MUX-DAC modules, each consisting of six 2:1 MUXs and a 6-bit DAC in a single package, and an integrated optical modulator, which contains a generator of two orthogonal CSRZ pulse trains for spectrally efficient OTDM followed by IQ modulators for each tributary. The signal was received and demodulated without using any time-domain demultiplexing. Transmission over 80-km SSMF was demonstrated.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamazaki
authors.forename: Akihide
authors.initials: A
authors.lastname: Sano
authors.forename: Munehiko
authors.initials: M
authors.lastname: Nagatani
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Miyamoto