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15 August 2008


OIF 100G project to focus on integrated photonic components

With a record number of members in attendance, at its Q3 meeting in Montreal the Optical Internetworking Forum (OIF) outlined details for its 100G long-distance dense wavelength division multiplexing (DWDM) transmission project.

During the joint session, carriers, along with system and component vendors, identified dual-polarization - quadrature phase shift keying (DP-QPSK) as a modulation technique for integrated photonic components. With a number of possibilities available for use at 100G, identifying a specific modulation technique gives the industry a starting point to design hardware and reduce development risk, says the OIF.

“We have selected an implementation approach supported by a critical mass of photonic component vendors and users,” says IBM’s David Stauffer, the Physical Link Layer (PLL) Working Group chair. “100G is an important development for the industry, and network element vendors have already begun work,” he adds. “The goal of the project is to accelerate the adoption of 100G in long-distance DWDM transmission.”

The project will specify an implementation agreement (IA) for integrated receive and transmit photonic component(s) for DP-QPSK. The IAs will define partitioning of photonics sub-components, the electrical and the optical interface. The objective is to create a foundation for multi-source agreements for transmit and receive photonic components.

Also at the Montreal meeting, the OIF announced that it has published a guideline document for signaling protocol interworking of ASON/GMPLS network domains (see:

“This document leverages the implementation experience of our members in recent interoperability demonstrations,” says Alcatel-Lucent’s Jim Jones, VP of marketing for the OIF. “It specifies interworking procedures for ASON- and GMPLS-based signaling solutions at domain boundaries and paves the way for end-to-end service provisioning, independent of the control plane solution within each domain.”

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