Publication

A novel surveillance system for installed fiber optics cables using stimulated Brillouin interaction

Luc Thévenaz
1997
Conference Papers

Abstract

A novel surveillance system for installed fiber optic cables is presented. It is based on the analysis of the local stimulated Brillouin scattering interaction. The configuration of the instrument rely on the use of a single laser source and the required light signals are all generated using an electro-optic modulator, resulting in a high stability and an excellent reliability of the setup. Some results of the first field measurements are discussed. They have provided important information on the strain distribution actually experienced by the fibers, fiber uniformity, local birefringence, temperature variations. The system can operate over 100 km and the spatial resolution, which remains sub-metric over the first 10 km, is below 10 m over the full range.

Official source

https://infoscience.epfl.ch/entities/publication/93c458dd-d6a6-4557-9b4b-b9672a711627

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Luc Thévenaz
1997
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/93c458dd-d6a6-4557-9b4b-b9672a711627

About this result

Related concepts (32)

Fiber-optic communication

Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. The light is a form of carrier wave that is modulated to carry information. Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference is required. This type of communication can transmit voice, video, and telemetry through local area networks or across long distances.

Fiber-optic cable

A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used. Different types of cable are used for optical communication in different applications, for example long-distance telecommunication or providing a high-speed data connection between different parts of a building.

Optical fiber

An optical fiber, or optical fibre in Commonwealth English, is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications, where they permit transmission over longer distances and at higher bandwidths (data transfer rates) than electrical cables.

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A novel surveillance system for installed fiber optics cables using stimulated Brillouin interaction

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