Telecom networks
DITEST-STA instruments are ideally suited for the qualification and testing of telecommunication installed fiber optic cables.
Large strain reducing the lifetime expectancy of the optical fiber and limiting bandwidth capabilities may be introduced during critical cable installation such as long haul aerial cable or underwater installation or else when the cables are pulled through manholes and over long winding routes as it may be the case in urban areas.
The bandwidth of a fiber optic transmission cable is ultimately limited by problems related to polarization mode dispersion, (PMD). Commonly caused by either residual or induced strain, PMD may produce a non-uniform strain in locations where the fiber link is subjected to environmental variations.
DITEST-STA - distributed strain monitoring
The DITEST instrument is the perfect tool to measure the installation induced strain following cable installation and as well as to routinely monitor the strain profiles of critical fiber link. The DITEST instrument is used in the field as a troubleshooting equipment to locate sections presenting strain levels exceeding rated specifications and introducing bandwidth limitations.