Publication

Photonic delay line for broadband optical signals, based on dynamic grating reflectors in fibers

Luc Thévenaz, Sang Hoon Chin, Nikolay Primerov
2010
Conference Papers

Abstract

We experimentally demonstrate that a novel type of photonic delay line based on movable dynamic grating reflectors generated in polarization maintaining fibers can provide continuously tunable signal delaying for high capacity optical data streams and wide bandwidth microwave signals.

Official source

https://infoscience.epfl.ch/entities/publication/dee55c7c-b662-4ea2-8e7f-133d638b1386

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Luc Thévenaz, Sang Hoon Chin, Nikolay Primerov
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/dee55c7c-b662-4ea2-8e7f-133d638b1386

About this result

Related concepts (22)

Photonic crystal

A photonic crystal is an optical nanostructure in which the refractive index changes periodically. This affects the propagation of light in the same way that the structure of natural crystals gives rise to X-ray diffraction and that the atomic lattices (crystal structure) of semiconductors affect their conductivity of electrons. Photonic crystals occur in nature in the form of structural coloration and animal reflectors, and, as artificially produced, promise to be useful in a range of applications.

Optical transistor

An optical transistor, also known as an optical switch or a light valve, is a device that switches or amplifies optical signals. Light occurring on an optical transistor's input changes the intensity of light emitted from the transistor's output while output power is supplied by an additional optical source. Since the input signal intensity may be weaker than that of the source, an optical transistor amplifies the optical signal. The device is the optical analog of the electronic transistor that forms the basis of modern electronic devices.

Polarization-maintaining optical fiber

In fiber optics, polarization-maintaining optical fiber (PMF or PM fiber) is a single-mode optical fiber in which linearly polarized light, if properly launched into the fiber, maintains a linear polarization during propagation, exiting the fiber in a specific linear polarization state; there is little or no cross-coupling of optical power between the two polarization modes. Such fiber is used in special applications where preserving polarization is essential.

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