Design optimization of ultra-high bit-rate NOLM-based OTDM demultiplexers

The performance of a NOLM gate as an OTDM demultiplexer for 640 Gbit/s to 40 Gbit/s was investigated considering the characterization of the switching windows through the Integrated Contrast Ratio. The results show that short loop lengths should be preferred

107 Gb/s RZ-DPSK transmission over 320 km dispersion-managed fiber with balanced detection ETDM integrated receiver

We demonstrate 107 Gb/s RZ-DPSK transmission with a balanced detection ETDM integrated receiver operating at the full 107 Gb/s line rate. Transmission performance is reported over 320 km dispersion-managed fiber

640 Gbit/s DQPSK single-channel transmission over 480 km fibre link

We report error-free transmission of a 640 Gbit/s DQPSK modulated signal over 6x80 km of dispersion-managed fibre. The DQPSK modulation together with polarization multiplexing enable the use of semiconductor-based components for the key devices

Ultrafast optical transmission technologies

In this paper, we discuss the requirements on the OTDM transmitter and receiver as well as on the fiber link. The following transmission experiments are described: 160 Gbit/s transmission over a record fiber length of 4320 km, 1.28 Tbit/s transmission over 240 km and 2.56 Tbit/s transmission over 160 km. The main task as regards OTDM technology is to investigate the feasibility of ultrahigh-speed data transmission. One has to study how the advantages of high TDM bit rates are eventually eroded by an increase in detrimental effects. Entnommen aus TEMA</a

1.28 Tb/s single wavelength star-16-QAM transmission over up to 800 m of graded-index multimode fibre

For the first time, up to 160 Gbaud 16-QAM and 8-PSK transmission over graded-index multimode fibre is demonstrated using optical time division multiplexing and de-multiplexing in combination with coherent detection

640 Gbit/s DQPSK, single wavelength-channel transmission over 480 km fibre link

Error-free transmission of a 640 Gbit/s data signal over a 6/spl times/80 km dispersion-managed fibre link using the DQPSK modulation format, OTDM technology and polarisation multiplexing, is reported

Distributed generation of a 400-Gb/s nyquist 16QAM dense superchannel by fiber-frequency conversion

We generate an ultra-dense 400-Gb/s superchannel by combining four spatially distributed 28-GBd-Nyquist-16QAM-sub-carrier transmitters using optical processing in nonlinear fibers. The multiplexed sub-carriers are precisely frequency-allocated with guard bands down to 0% and achieve bit-error ratios below 3.8×10-3