Adva Optical Networking has announced that China Unicom has conducted a successful field trial of its G.metro (WDM-PON) technology in an advanced fronthaul network. The wavelength-agnostic prototype uses a single bidirectional fiber link between head-end and tail-end equipment, to reduce the requirement for wavelength configuration and management.
Leveraging autonomous transponders, this technique reduces cost and complexity for metro access network applications, including mobile fronthaul/backhaul, fixed broadband access and enterprise networks, Adva said. After evaluating Adva Optical Networking's G.metro technology, China Unicom showcased the device to customers at a laboratory demonstration in Beijing.
The demonstration revealed how this new architecture increases fiber capacity in access systems. Adva Optical Networking's prototype technology, which is defined by the ITU-T G.metro standard, directly distributes DWDM wavelengths to remote radio units, base stations, desktops or end users. This enables up to 40 DWDM wavelength channels with a grid of 100GHz. Each channel is able to transmit data at 10Gbps over a 20km fiber distance without optical amplification. The prototype also proved to be fully compatible with current commercial wireless technology, paving the way for future real-world deployment.
