Single-carrier 1-Tb/s PDM-16QAM transmission using high-speed InP MUX-DACs and an integrated OTDM modulator

100G and 200G single carrier transmission over 2880 and 320 km using an InP IQ modulator and Stokes vector receiver.

We demonstrate experimentally the transmission of single carrier 56 Gbaud 16-QAM, 8-QAM and QPSK optically modulated signals over 320, 960 and 2,880 km, respectively, using a fully packaged InP IQ modulator and a Stokes vector direct detection (SV-DD) receiver realized using discrete optics. Results show that by optimizing the carrier-to-signal-power ratio, the total throughput-times-distance p...

High Speed 16 : 1 Mux Implementation

With today’s high-capacity systems, the need to reduce wide parallel busses to serial signals has become a vital necessity, particularly in test and measurement, telecommunications, data communications, satellite and military/aerospace applications. A parallel-to-serial (P/S) converter, often referred to as a Multiplexer (Mux) or serializer, can be used to convert an 8 or 16-bit wide parallel d...

High-Speed DACs

Semiconductor Mode-Locked Laser for High-Speed OTDM Transmission

The aim of this work is to investigate semiconductor mode-locked lasers for their application as a transmitter pulse source in an optical time division multiplexing (OTDM) system with data rates up to 640 Gbit/s and with on-off keying (OOK) or differential phase shift keying (DPSK) modulation formats. Up to the present work there have not been any applications of the semiconductor mode-locked l...

Integrated Tandem Electroabsorption Modulators for High-speed Otdm Applications

An integrated tandem traveling-wave electroabsorption modulators is demonstrated as an optical short pulse generator and demultiplexer for >100 Gbit/s optical time-division-multiplexed systems. Optical pulses of 4.2 ps width at 30 GHz with an extinction ratio in excess of 30 dB are achieved.