ATLAS: All-optical terabit-per-second lambda shifted transmission

• Research unit: EU RFP
• Project number: 99.0769

Key words (English)

WDM transmission; optical receivers; INP MMIC'S

Alternative project number (English)

EU project number: IST-1999-10626

Research programs (English)

EU-programme: 5. Frame Research Programme - 1.2.1 Systems and services for the citizen

Short description (English)

See abstract

Partners and International Organizations (English)

Coordinator: Fondazione Ugo Bordoni (I)

Abstract (English)

In year 2001, the main objective in the ATLAS-project was the transmission of 4 channels at 40 Gb/s in a link 500 km long, with an amplifier spacing of 100 km, encompassing both G.652 and G.655 fibres. In this transmission experiment one channel had to be wavelength converted by means of one of the AOWC's (all-optical-wavelength converter) fabricated in this project. Even though the first transmission experiments could be based on the time multiplexing/demultiplexing at optical level, the final system foresees a transmitter based on the electrical multiplexer (EMUX) and a receiver with electrical demultiplexer (EDEMUX). Towards this end, Opto Speed Zürich realized in year 2001 a number of 40 Gb/s Indium-Phosphide (InP) heterobipolar-transistor (HBT) IC's. These IC's combine circuit building blocks such as D-flip-flops (D-FF's), exclusive-or-gates (XOR's) and voltage-controlled oscillators (VCO's) as well as complete 4:1 multiplexer and 1:4 demultiplexer circuits. In on-wafer measurements, these chips showed to be capable of operation at 40 Gb/s showing clearly open eye diagrams. In addition, D-FF and MUX chips were packaged into high-speed modules that were demonstrated to preserve the high-speed performance of the IC's. In an electrical back-to-back test setup, MUX and D-FF modules have been shown to be able to multiplex 10 Gb/s PRBS data streams to 40 Gb/s and to extract the original 10 Gb/s signal without errors. In addition, the MUX module was employed to generate a 40 Gb/s PRBS optical pulse stream that was tested to be error-free in an optical back-to-back configuration.

References in databases (English)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 99.0769