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ODM test module targets fiber-optic networks

Posted: 26 Dec 2007 ?? ?Print Version ?Bookmark and Share

Keywords:optical dispersion measurement module? fiber-optic networks?

JDSU has introduced the Optical Dispersion Measurement (ODM) module for its T-BERD/MTS-6000 and T-BERD/MTS-8000 optical test platforms. The ODM module offers chromatic dispersion (CD), polarization mode dispersion (PMD) and attenuation profile test functions in a single plug-in module, delivering a compact and integrated dispersion solution dedicated to field testing fiber-optic networks.

The module includes a patented solution for CD measurement. CD, PMD and attenuation measurements are essential during fiber characterization, said JDSU. These tests identify fiber viability for very high-speed transmission systems (10GbE, 40G and higher) in both the installation and maintenance phases. If not properly managed, CD, PMD and attenuation can cause severe performance effects on transmission quality that must operate at peak performance in order to deliver reliable broadband services.

The ODM module's combination of CD, PMD and attenuation test functions allows technicians to validate the fiber link's compatibility with high-speed CWDM/DWDM systems including Reconfigurable Optical Add/Drop Muxes (ROADMs). The performance of each individual function also makes the ODM module suitable for characterizing fiber at 40G and higher.

The ODM module is said to deliver the industry's only full-band CD analyzer with measurement points in the lower bands (1,260-1,460nm). The module also features very fast CD acquisition time (45s to 70s), test capability through non-bidirectional components (EDFA, filters and similar components), internal and on-line wavelength referencing, and accurate zero-wavelength characterization on G652 fiber. It also provides a single input port for any test configuration, and compatibility with plug-in or battery-powered handheld broadband sources at the far end of the fiber-under-test.

- Gina Roos

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