Turk Telekom and Huawei today announced the successful trial of a 2T WDM system on Turk Telekom's live network.

With this successful trial, Turk Telekom's is claiming the industry's largest capacity and highest spectral efficiency (SE) to date. This announcement is based on the 40 Tb/s C-band transmission over a single fiber, equivalent to simultaneous transmission of up to 10,000,000 channels of HD videos

Connectikpeople has observed that:

·        The trial was over 307 km of G.652 fibers between Ankara, the capital of Turkey, and Cankiri. Using advanced 32QAM modulation, the WDM system delivered a net SE of up to 8 b/s/Hz or 40Tb/s C-band transmission, meaning a capacity four times higher than mainstream commercial 100G systems.

·         Using Hybrid QAM technology with 20 Tb/s capacities, the trial link consisted of fiber loop between Ankara and Istanbul, stretching 1,750 km without regeneration.

For those who unfamiliar, Hybrid QAM technology allows software-defined tuning of modulation formats such as QPSK, 8QAM, 16QAM, 32QAM, and 64QAM for different optical signals, with the goal to bring unprecedented flexibility in service-specific capacity and transmission distance configurations.

Finnaly Connectikpeople recalls that, Turk Telekom's WDM network is one of the largest and most advanced in Europe. In 2010, Turk Telekom built the national backbone network that stretches more than 34,000 km using Huawei's next-generation WDM system, and in 2012, it deployed Huawei's coherent 100G solution.