Full-feature optical time domain reflectometers (OTDR) can have options for which of the following modules?

Full-feature optical time domain reflectometers (OTDR) are advanced testing instruments used in the fiber optics field to analyze and troubleshoot optical fiber networks. One of the significant advantages of these devices is the ability to measure various parameters of the fiber being tested, including chromatic dispersion and polarization mode dispersion (PMD).

Chromatic dispersion refers to the phenomenon where different wavelengths of light travel at different speeds through a fiber, which can lead to signal degradation over long distances. PMD, on the other hand, is an effect that arises due to the birefringence of the fiber, where different polarizations of light can take multiple paths, resulting in timing differences.

By including modules that can analyze these two types of dispersion, an OTDR can help technicians optimize fiber designs and maintain higher performance in networks, especially as data demands increase. This feature is crucial for ensuring that fiber optic systems can support high bandwidth applications and maintain signal integrity over long distances.

Other options, such as fiber optic connectors, optical loss test sets, and fusion splicing equipment, while important in the broader context of fiber optic installation and maintenance, do not pertain specifically to the main capabilities of OTDRs in terms of analyzing the dispersion characteristics of the fiber itself.