Keep critical Ethernet links stable across distances where standard optics fall short. This AddOn Networks compatible DWDM SFP is designed for Alcatel-Lucent Nokia environments and delivers 1 GbE transport over single-mode fiber with a 1538.19 nm wavelength, 100 GHz channel spacing, and LC duplex connectivity. For infrastructure teams managing metro aggregation, campus interconnects, or long-reach backbone extensions, the value is in predictable optical performance and deployment fit. DOM support gives operations teams visibility into transceiver health, helping simplify troubleshooting and reduce guesswork during maintenance windows. The 80 km reach makes it suitable for links that would otherwise require more complex transport designs. TAA compliance adds procurement flexibility for public sector and regulated environments, while the compatible form factor helps preserve budget without forcing a redesign of the optical layer. When the requirement is to extend Ethernet cleanly and keep the network architecture simple, this module provides a focused answer: long reach, precise DWDM tuning, and enterprise-grade interoperability.