System and apparatus for detecting and locating external attacks on submarine cables - Patents.com
The system detects and locates external damage on submarine optical cables by analyzing SOP changes, addressing the cost and regulatory issues of sensor installation, enabling real-time damage detection and repair.
JP7597296B2Active Publication Date: 2024-12-10SUBCONTRACTOR LLC
Patent Information
- Application Number
- JP2020090036
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-06-06
- Filing Date
- 2020-05-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2040-05-22
Smart Images
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Abstract
To provide a novel system and apparatus for detecting and locating an external aggression on at least one optical cable of an optical communication system.SOLUTION: In a bidirectional optical communication system 101, a receiver 115 or 123 receives a signal from a transmitter 113 or 125, analyzes it to recover a state-of-polarization (SOP) associated with the signal, and identifies a first rapid polarization change that occurs. This indicates that an external aggression has occurred on at least one optical cable. A time offset between the first rapid polarization change and a second rapid polarization change is used to estimate a location of the external aggression.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
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