High reflectivity and narrow bandwidth fibre gratings written by single excimer pulse

7 January 1993

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 29 (1) , 28-29
https://doi.org/10.1049/el:19930018

Abstract

The first demonstration is reported of highly reflecting fibre Bragg gratings written holographically by a single 20ns excimer laser pulse; reflection efficiencies of 65% combined with 1nm bandwidths at 1550nm have been obtained. Single-pulse gratings with FWHM bandwidths of 0.05nm (6GHz) have also been produced, to the authors' knowledge the narrowest reported to date.

Keywords

EXCIMER LASER PULSE
SINGLE EXCIMER PULSE
6 GHZ
1550 NM
FIBRE GRATINGS
FWHM BANDWIDTHS
65 PERCENT
HIGHLY REFLECTING FIBRE BRAGG GRATINGS
SINGLE PULSE GRATINGS
REFLECTION EFFICIENCIES
HOLOGRAPHIC WRITING

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