Subcom, LLC

Tyco Telecommunications (us) Inc.

William W Patterson

Alexei N Pilipetskii

Neal S Bergano

Georg Heinrich Mohs

Jin-Xing Cai

Cleo D Anderson

Richard L Maybach

Roberto Mattos

Mark Enright

Bamdad Bakhshi

Robert P Bellomo

D Mark Havens

Ying Jiang

William C Barnett

Robert Behringer

Carl Davidson

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.

Methods, mediums, and systems for testing fiber optic telecommunication systems

An apparatus for subsea environment sensing. In one aspect, the apparatus may include a repeater assembly, disposed in an optical repeater; and an environmental sensor assembly, disposed proximate to the repeater assembly, the environmental sensor assembly being coupled to receive power from the repeater assembly over an optical link.

Architecture, apparatus, and power delivery method for environmental measurement in subsea system

The position and amount of localized polarization dependent anomalies such as polarization mode dispersion and/or polarization dependent loss may be measured by applying a polarization modulated probe signal to an optical transmission line. The polarization modulated probe signal is returned via optical feedback paths positioned along the line, and is detected by a probe signal receiver to identify the position and strength of the anomaly.

Method and apparatus for detecting localized polarization dependent anomalies on optical transmission lines

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Freehold, NJ, United States of America

William W Patterson