Publication

True Time Reversal via Dynamic Brillouin Gratings in Polarization Maintaining Fibers

Luc Thévenaz, Sang Hoon Chin, Kwang-Yong Song, Nikolay Primerov
2010
Conference Papers

Abstract

A novel technique to realize true time reversal of an optical signal, using dynamic Brillouin gratings in high-birefringence fibers, is proposed. A data sequence of optical pulses with 2-ns duration was efficiently time-reversed.

Official source

https://infoscience.epfl.ch/entities/publication/c9fb3a10-2283-4f93-854a-68c3c214563c

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Luc Thévenaz, Sang Hoon Chin, Kwang-Yong Song, Nikolay Primerov
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c9fb3a10-2283-4f93-854a-68c3c214563c

About this result

Related concepts (17)

Optical amplifier

An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. They are used as optical repeaters in the long distance fiberoptic cables which carry much of the world's telecommunication links.

Birefringence

Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic materials are said to be birefringent (or birefractive). The birefringence is often quantified as the maximum difference between refractive indices exhibited by the material. Crystals with non-cubic crystal structures are often birefringent, as are plastics under mechanical stress.

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Photonic-crystal fiber (PCF) is a class of optical fiber based on the properties of photonic crystals. It was first explored in 1996 at University of Bath, UK. Because of its ability to confine light in hollow cores or with confinement characteristics not possible in conventional optical fiber, PCF is now finding applications in fiber-optic communications, fiber lasers, nonlinear devices, high-power transmission, highly sensitive gas sensors, and other areas.

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