Submarine Cable Networks

Sustain fast deployment and high bandwidth demand

Building, activating, and maintaining submarine cable networks presents unique challenges associated with accessibility, long distances, and constant exposure to the elements.

Flat Sub Cable Network Diagram

Throughout the life cycle of a submarine cable network, it is critical to use the best test and monitoring tools available to maximize transmission capacity and network availability.

Fiber end face inspection remains the essential test tool to ensure connector cleanliness and detect dirt particles or other defects whose impact can be magnified over potentially thousands of km.

OTDR test tools validate the physical integrity and losses of the fiber links, as-well-as accurately mapping out the distances to any faults. The 8100D OTDR, the industries only true 50dB dynamic range OTDR, allows certification and troubleshooting of unprecedented sub-sea distances, while the FiberComplete® automated bi-directional Insertion Loss (IL), Optical Return Loss (ORL) and OTDR solution offers the tool of choice to qualify unrepeated links and first wet segment.

Optical network characterization test tools with Chromatic Dispersion (CD) and Polarization Mode Dispersion (PMD), as well as Attenuation Profile, provides the base line information to guarantee the physical performance of the fibers in the cables.

Service activation with modern DWDM transmission formats like Polarization-Multiplexed, requires state of the art spectrum analyzers with In-Service an In-Band OSNR testing capability combined with high resolution.

The large variety of transmission speeds and formats carried along submarine cables demand flexible multiservice test solutions for SONET/SDH or Ethernet (up to 100Gb/s) and OTN (OTU3) qualification and validation. Portable or rack-mounted solutions will provide automation and remote testing capabilities.

Monitoring and maintenance are the keys to ensuring the on-going health of both the dry and “non-amplified” wet plants as well as offering a solution to watch the first critical segment of any amplified link.To protect the fiber physical link an effective optical network monitoring system, such as ONMSi or SmartOTU, provides real time information about faults, degradation, and any security related issues.

Pushing and maximizing the capacity of a submarine network also requires considering new parameters such as fluctuations in strain or temperature of the fibers in the links. Fiber optic sensing tools play a critical role in such a qualification.


FiberChek Probe Microscope

The "all-in-one" handheld solution for fiber inspection.

OTDR Modules (8100 Series)

OTDR test solution for use in the installation, turn-up, and maintenance of Enterprise, FTTx, Access, Metro, very long-haul and ultra long haul networks.

Optical Dispersion Measurement (ODM) Modules (8100 Series)

Integrated fiber characterization and dispersion test solution combining PMD, CD, and AP measurements to characterize high speed networks.

High Performance Optical Spectrum Analyzer Module (OSA-500 Series)

Full range of optical spectrum analyzers for spectral measurements in CWDM, DWDM, and ROADM testing-based systems, providing true OSNR measurements based on the unique VIAVI in-band OSNR method.

T-BERD/MTS-5800-100G Platform

The T-BERD/MTS-5800-100G handheld network tester is the one tool that network technicians and engineers need to install and maintain their networks. It supports both legacy and emerging technologies to address network applications including metro/core, data center interconnect, and business services test applications.


The one tool data center operators need to remotely test transmission quality of the network connecting its data centers, central offices, or head ends.
ONMSi Remote Fiber Test System (RFTS)

ONMSi Remote Fiber Test System (RFTS)

ONMSi Optical Network Management System for Core, Metro, Access and FTTH networks.
SmartAccess Anywhere

Smart Access Anywhere (SAA)

A solution that enables centralized support, on-demand test and live results analysis to support and coach technicians in the field – improving first time install/activation rates while reducing repeats and minimizing time-on-site.


NITRO BI Fiber Insight for ONMSi providing customizable data aggregation and analytics dashboards for your fiber network

Support at Every Step

We provide support, services, comprehensive training and the resources you need. It’s all part of what we do to maximize the value of your VIAVI investment.

Value add services that compliment your VIAVI system solution and instrument portfolio to provide a total cost of ownership

Customer Service that provides Return Material Authorization (RMA) for repair and calibration

Technical education solutions, product training, and blended learning for technicians who are using new products or working with existing tools

Technical Assistance Center to assist you in using/configuring products or address issues regarding product performance

Ask an Expert

Contact us for more information or to receive a price quote. We have the experts to give you the right answer for any of your questions.