The scope of this Recommendation is to define a "degradation function" of the Optical Network Elements (DWDM line segment, PXC,OADM, etc) between points MPI-SMand MPI-RM(Figures6-1to 6-3) in terms of ASE, non-linear impairment, Chromatic Dispersion, PMD, etc, independently from the network architecture / structure / configuration that the system is deployed in.
ITU-T G.680-2007 Referenced Document
ITU-T G.652-2005 Characteristics of a single-mode optical fibre and cable
ITU-T G.661-2007 Definitions and test methods for the relevant generic parameters of optical amplifier devices and subsystems (Study Group 15)
ITU-T G.662-2005 Generic Characteristics of Optical Amplifier Devices and Subsystems Study Group 15
ITU-T G.663-2000 Application Related Aspects of Optical Amplifier Devices and Sub-Systems Study Group 15
ITU-T G.665-2005 Generic characteristics of Raman amplifiers and Raman amplified subsystems SERIES G: TRANSMISSION SYSTEMS AND MEDIA DIGITAL SYSTEMS AND NETWORKS Transmission media characteristics Characteristics of optical components and subsystems Study Group 15
ITU-T G.666-2005 Characteristics of PMD compensators and PMD Compensating Receivers Study Group 15
ITU-T G.667-2006 Characteristics of adaptive chromatic dispersion compensators*， 2024-04-18 Update
ITU-T G.671-2005 Transmission characteristics of optical components and subsystems SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Transmission media characteristics ?Characteristics of optical components and subsystems Study Group 15
ITU-T G.694.1-2002 Spectral grids for WDM applications: DWDM frequency grid Series G: Transmission Systems and Media, Digital Systems and Networks Transmission media characteristics - Characteristics of optical components and subsystems Study Group 15
ITU-T G.680-2007 history
2007ITU-T G.680-2007 Physical transfer functions of optical network elements Study Group 15