Dec 13 2010
Corning, Huawei and China Telecom announced that they have completed the transmission test of China’s 100 G wavelength division multiplexing (WDM) network. The transmission test was recorded for a 100G WDM transmission distance of more than 3000 km in the fiber-optic system.
China Telecom’s broadband network development, along with the triple-play service and FTTx broadband infrastructure, is moving at a fast pace. In order to support the technology, the company is looking at 100G WDM transmission technology to succeed its backbone network. In the transmission test conducted, the 100G WDM transmission device was based on coherent PM-QPSK technology. The hybrid transmission of 100G/40G technology and C-band 50 GHz-spacing technology were also adopted in the transmission test.
The OSN 8800 platform, developed by Huawei, has the potential to migrate to 100G transmission smoothly. The platform also supports hybrid transmission of 10G, 40G, and 100G signals. This solution, when integrated with OTN solutions, develops a large bandwidth pool for various services.
Corning’s SMF-28 ULL optical fiber that was used in the test complies with ITU-T G.652 specifications. The optical fiber has a polarization mode dispersion feature and very low attenuation and allows the latest transmission system to attain high-speed and very long span reach.