Abstract: This application describes techniques for testing fiber optic telecommunication systems, such as undersea fiber optic cable systems. Testing terminals may be deployed at a location of terminating equipment for a fiber optic cable. The testing terminals may be operated remotely. The testing terminals may be configured to programmatically test the cable by loading one or more tests and automatically configure the cable's transmitters and receivers based on predetermined loading schemes selected based on the tests to be performed. The testing terminals may iterate over channels and fiber pairs of the cable and may use back-to-back tests to remove artifacts from test results. Using the described techniques, a cable's channels and fiber pairs can be fully characterized in the amount of time afforded for a typical testing schedule, which was not generally possible using conventional testing.

Abstract: Techniques for providing high-resolution, standard-format output for line monitoring equipment (LME) of a wavelength division multiplexed (WDM) communication system is disclosed. LME may transmit a plurality of LME test signals via an optical path of the WDM system and perform gain measurements on reflections associated with the same at predetermined intervals. Gain measurements for each of the plurality of LME test signals may be normalized and filtered to derive LME peak data. The WDM communication system may perform full scans with data points totaling millions/billions (e.g., depending on system length, fiber type, and number of transmitted LME test signals or test pulses) and normalize the same into a relatively small number of resulting data points within the LME peak data. The WDM system may then output an LME results file in a standard format which is compatible with commercial viewers and optical time domain reflectometer (OTDR) equipment.

Abstract: Techniques for managing a data communication network (DCN) are disclosed, in accordance with an embodiment, and provide planning, maintenance, and validation (e.g., auditing) functionality for the purpose of managing network elements across a plurality of stations/locations associated with an optical communication network. In accordance with an embodiment, a computing device includes a DCN configuration interface and engine. The DCN configuration interface enables modeling of a DCN based on a plurality of user-provided parameters and constraints. The DCN configuration interface may then generate settings files in accordance with the DCN model. The DCN configuration interface further allows previously-generated configuration files to be read in for the purpose of performing updates, adding new stations, new network elements, new equipment types, new equipment models, and so on.

Abstract: Techniques for providing high-resolution, standard-format output for line monitoring equipment (LME) of a wavelength division multiplexed (WDM) communication system is disclosed. LME may transmit a plurality of LME test signals via an optical path of the WDM system and perform gain measurements on reflections associated with the same at predetermined intervals. Gain measurements for each of the plurality of LME test signals may be normalized and filtered to derive LME peak data. The WDM communication system may perform full scans with data points totaling millions/billions (e.g., depending on system length, fiber type, and number of transmitted LME test signals or test pulses) and normalize the same into a relatively small number of resulting data points within the LME peak data. The WDM system may then output an LME results file in a standard format which is compatible with commercial viewers and optical time domain reflectometer (OTDR) equipment.

Abstract: Techniques for managing a data communication network (DCN) are disclosed, in accordance with an embodiment, and provide planning, maintenance, and validation (e.g., auditing) functionality for the purpose of managing network elements across a plurality of stations/locations associated with an optical communication network. In accordance with an embodiment, a computing device includes a DCN configuration interface and engine. The DCN configuration interface enables modeling of a DCN based on a plurality of user-provided parameters and constraints. The DCN configuration interface may then generate settings files in accordance with the DCN model. The DCN configuration interface further allows previously-generated configuration files to be read in for the purpose of performing updates, adding new stations, new network elements, new equipment types, new equipment models, and so on.