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Deploying 40G/100G Submarine Networks with the Right Solutions


Ensuring Cost-Effective 40G/100G Submarine Transmission

Packet traffic on submarine networks is steadily on the rise and submarine network operators must meet exacting services while optimizing performance. As a result, more and more telecom operators are ramping up their transoceanic fiber networks to improve reliability, performance and bandwidth availability, making comprehensive testing—across the multiple layers of the network—critical.

Laying out new submarine fiber is several times more expensive than terrestrial deployments. Its troubleshooting, repair and upgrade is likewise costly. Telecom operators face the task of running each fiber at its maximum capacity. Therefore, network characterization tests, including end-to-end chromatic dispersion (CD) and polarization mode dispersion (PMD), are essential to guarantee high-speed submarine transmission. What’s more, validation with a next-gen optical spectrum analyzer (OSA), performed during system commissioning, ensures that a single fiber will contain as many dense wavelength-division multiplexing (DWDM) channels as possible, while operating error-free.

Today’s regional and transoceanic network deployments demand powerful, flexible multiservice testing solutions that address SONET/SDH/OTN (up to OC-768/STM-256/OTU3) and Ethernet (10M to 100G) transmissions. Accelerating and simplifying the deployment processes with powerful, intelligent platforms that easily accommodate a variety of optical, transport and datacom modules help overcome these challenges. In addition, capabilities, such as automation, simultaneous and in-service testing, as well as remote management, validate that all the tests performed throughout the lifecycle are accurate, thereby ensuring the cost-efficiency and success for 40G/100G submarine networks.

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This application note describes how EXFO tested a transatlantic network for both PMD and CD with the PMD and CD analyzers set up in Europe, while the light source (FLS-5803) was based in Canada.

Last updated: 2016-01-18

This paper reviews the challenges brought forth by the advent of 40G transmission and describes the importance of each test, as well as where and how they should be performed.

Last updated: 2016-01-18

FG-750 – Fiber Guardian Series

Specification Sheets

Scalable test solution for fiber network monitoring and management, from one stand-alone unit to centrally managed systems with one or hundreds of test ports.

Last updated: 2015-11-05

The deployment of 40/100G brings with it newer and more serious challenges that must be understood and properly prepared for via critical physical layer tests. EXFO’s 40G/100G submarine network expertise encompasses network components and fiber testing throughout all the transmission network stages.

Last updated: 2015-04-29