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Wavelength-Division Multiplexing (WDM)


Optical transmission technique that uses different light wavelengths to send data. Combination of two or more optical signals for transmission over a common optical path.


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FTB-5240S OSA module

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Highly accurate, easy-to-use intelligent optical spectrum analyzers (OSAs) for analysis of CWDM and DWDM networks.

IQS-5240S/BP OSA test modules

IQS-5240S-P/BP—Optical Spectrum Analyzers

Highly accurate, easy-to-use intelligent optical spectrum analyzers (OSAs) for current and next-generation networks.

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Packet Optical Transport—A Viable Solution to Network Expansion

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Packet optical transport (POT) networks are optical super-highways that use the most advanced technological enablers, from reconfigurable optical add/drop multiplexers (ROADMs) to amplifiers—and from very high bit rates to dense wavelength-division multiplexers (WDMs).


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Presentation of EXFO’s WDM Investigator—the ultimate tool to cut down troubleshooting time and operational expenses in WDM networks.

Last updated: 2013-01-16

An introduction to one of EXFO's latest innovations to its FTB-5240S/B-P, WDM-Aware. WDM-Aware offers the i-in-band mode—intelligent setups, optimized on a per-channel basis, which delivers accurate test results all automatically, all the time. WDM-Aware removes the uncertainty about test results, removes the guesswork, automates and speeds up tests, and thereby reduces OPEX.

Last updated: 2012-01-26

Learn about how modern WDM network operators are faced with new challenges when measuring system performance, namely its OSNR. Gain insight into EXFO's new techniques and patented algorithms that currently being used for OSNR testing in WDM networks.

Last updated: 2012-01-26