EXFO Electro-Optical Engineering has released the FTB-5800 chromatic dispersion analyser, a high-performance test module contained inside the FTB-400 field-testing platform.
As telecommunications carriers turn up data rates to 10 and 40 Gbps on their high-speed optical networks and as spacing becomes tighter in DWDM systems, physical limitations like chromatic dispersion become increasingly problematic. Chromatic dispersion is a physical phenomenon inherent to optical fibre and optical components that causes information bits to spread along a network. This degrades the quality of the transmission signal and, in turn, limits the transmission speed carried by optical networks.
"This latest addition to our product portfolio makes us the uncontested leader in dispersion testing," said Mario Larose, vice-president of marketing at EXFO. "We were the first to launch a portable polarisation mode dispersion analyser a few years ago and now we have added a chromatic dispersion analyser. Carriers can now simultaneously perform all of their dispersion tests with a single, rugged and portable platform."
Historically, chromatic dispersion analysers have required communication through a source at one end of a link and a receiver at the other end to perform tests. This meant that characterising links with one-way devices like isolators was impossible. The FTB-5800 chromatic dispersion analyser enables field technicians to test not only sections of a link but the entire link at once because it can sweep through amplifiers such as EDFAs. In addition, EXFO's new analyser uses full-wavelength characterisation, not merely interpolation from a few acquired points.
Combined with the highly intuitive graphical user interface and all-in-one configuration of the FTB-400 platform, the FTB-5800 chromatic dispersion analyser module represents a best-of-class solution for high-end field testing.
"This new solution provides users with significant savings in terms of time and costs," Larose added. "A lot of time can be wasted compiling the acquisitions for each section of a link, adding them up and ensuring there are no mistakes. With the chromatic dispersion analyser, an entire link can be tested using a single-button operation."
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