Photoinduced modifications in fiber gratings inscribed directly by infrared femtosecond irradiation


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:
Divisions: College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Uncontrolled Keywords: femtosecond microfabrication,fiber Bragg gratings (FBGs),Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Publication ISSN: 1941-0174
Last Modified: 23 Oct 2019 11:51
Date Deposited: 19 Jul 2011 13:41
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 (ORCID Profile 0000-0002-6764-683X)
Khrushchev, Igor
Bennion, Ian

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