CE1: Digital Optical Transmission Systems

All-optical OFDM implementation, including FFT algorithm
KIT collaborates with several industrial partners, namely Agilent Germany, Finisar Israel, Micram Microelectronic GmbH, Time-Bandwidth Products Switzerland, Centellax, Alcatel-Lucent Germany and Xilinx, to achieve a record-breaking transmission capacity modulated onto the output of a single laser source.

Nyquist-WDM based Tbit/s Superchannel transmission
POLITO, HHI and industrial partners (OCLARO Corp., CISCO Photonics, TELEOPTIX, FASTWEB s.p.a., AVANEX Corp.) investigate the long-haul reach of a 1Tb/s superchannel comprising 10x100Gb/s PM-QPSK modulated carriers. The experiments were carried out over the operator FASTWEB’s installed cable plant in the city of Turin, Italy, which consists of uncompensated Standard-Single Mode Fibre (SSMF) with EDFA in-line amplification.

Development of DSP algorithms and testing in a real-time test environment
SSSUP in collaboration with the industrial affiliate Ericsson Italy are setting up an experimental test-bed for 100 Gb/s QAM transmission system with coherent receiver, as well as are carrying out theoretical studies and implementation of sophisticated processing techniques for mitigation of linear and nonlinear propagation impairments, local oscillator phase noise and digital phase locked loop impairments.

CE2: Optical Sources & Amplification Systems

Tuning Characteristics and Switching Speed of a Modulated Grating Y Structure Laser for Wavelength Routed PONs
This work is performed by UPC and ACREO in collaboration with the industrial partner Syntune. A complete laser driving board is being developed and evaluated

CE3: High-Speed Optical Network Subsystems

Amplitude and phase analysis of PolMux DQPSK signals
The activity is carryied out by KIT, HHI and the industrial affiliate Finisar. An optical vector signal analyzer based on a self-coherent (differential) receiver is being implemented.

CE4: Next-generation Optical Access Subsystems

Photonic Demodulation of millimetre-wave wireless signals using optical coherent receivers
The activity is carried out jointly by UPLVC and DTU under JEA 2.6 with the equipment support of Radiometer Physics GmbH

High speed Burst-Mode ONUs for next generation PONs
The activity is carried out by IMEC, UPC and the industrial affiliate France Telecom in the framework of JEA 2.8. Design and implementation of burst-mode Txs for upstream transmission in high-split PONs is the main objective of this work.

Enhancement of upstream transmission using cancellation of downstream demodulation
This activity is being carried out between the partners UPC and ICCS/NTUA and has attracted the interest of Alcatel III-V Labs  The main objective is to investigate an all-optical technique for downstream cancellation targeting the realization of low-cost upstream transmitters with ultra low power consumption.

Extended reach 10 Gb/s burst-mode transmission
This activity is jointly performed by TNI and IMEC with the support of Alcatel-Lucent. Also, within this research activity EDF-based ROPA and SOA extender box technologies are being thoroughly investigated in collaboration with Orange/France Telecom. 

Extended C & L, EDF & Raman amplification for WDM/TDM PON
This work is performed by UPC, IT and AIT and the external partner Keopsys and investigates amplification technologies within the C and L bands in extended reach full-duplex PON within JEA 2.5.

Mitigation of Rayleigh backscattering impact in WDM-PONs
This activity, leaded by UPC, provides the experimental validation of theoretically expected results. Furthermore, research cooperation with VPIphotonics has been established.