Auto-Lambda Solution for Autotuneable DWDM in Access Networks

The demand for access capacity continues to grow, most recently driven by major fiber-deep architectural shifts, such as 4G Long Term Evolution – Advanced (LTE-A) in mobile networks and the evolution to Converged Cable Access Platform (CCAP) and Distributed Access Architecture (DAA) in cable networks. This trend is set to continue at an ever-faster rate as mobile networks move to 5G and the DAA approach in cable networks leads to the mass rollout of Remote PHY devices (RPD).

The G.metro initiative within the International Telecommunications Union has been looking at standardizing how wavelength-division multiplexing (WDM)-based networks can support simplified, cost-reduced access networks to support this trend, and describes a WDM-based passive optical network (WDM-PON) approach at symmetrical transmission speeds of 10 gigabits per second (10G). Network operators using this technology can then achieve a reduction in both the time and cost required to rapidly and economically scale their optical networks to support these new fiber-deep architectures.

Infinera has been an active participant in this standardization initiative and is now introducing Auto-Lambda, the company’s autotuneable dense wavelength-division multiplexing (DWDM) technology, to the XTM Series to enhance the platform’s range of access-optimized capabilities in packet-optical Ethernet and Layer 1 applications.

Infinera’s approach, which includes an innovation to enable autotuning at distances up to 80 kilometers over both single and dual fibers, addresses the need for a “plug-and-go” installation model to simplify operational procedures, and enables network operators to scale to extremely large numbers of 10G access points.