Photoinduced modifications in fiber gratings inscribed directly by infrared femtosecond irradiation

Martínez, Amós, Dubov, Mykhaylo, Khrushchev, Igor and Bennion, Ian (2006). Photoinduced modifications in fiber gratings inscribed directly by infrared femtosecond irradiation. IEEE Photonics Technology Letters, 18 (21), pp. 2266-2268.

Abstract

The structure of fiber Bragg gratings inscribed pointby-point by an infrared femtosecond laser is studied by quantitative phase microscopy. Results show that these gratings present a central region with a depressed refractive index surrounded by an outer corona with increased refractive index. The refractive index profile suggests the presence of microvoids embedded in a region of the core. © 2006 IEEE.

Publication DOI: https://doi.org/10.1109/LPT.2006.884883
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Uncontrolled Keywords: femtosecond microfabrication,fiber Bragg gratings (FBGs),Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Full Text Link: http://ieeexplo ... rnumber=1715396
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2006-11-01
Authors: Martínez, Amós
Dubov, Mykhaylo ( 0000-0002-6764-683X)
Khrushchev, Igor
Bennion, Ian

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