100% reflectivity Bragg reflectors produced in optical fibres by single excimer laser pulses


Archambault, J.L., Reekie, L. and Russell, P.St.J. (1993) 100% reflectivity Bragg reflectors produced in optical fibres by single excimer laser pulses. Electronics Letters, 29, (5), 453-455. (doi:10.1049/el:19930303).

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Original Publication URL: http://dx.doi.org/10.1049/el:19930303

Description/Abstract

It is shown for the first time that fibre gratings with reflectivities in excess of 99.8% and fractional bandwidths of 0.005 (7.5 nm or 970GHz at 1550nm) can be written by interferometric side exposure of a fibre core to a single 40mJ UV pulse of 20ns duration at 248nm. These highly efficient reflectors are formed by a new mechanism in which the core glass fuses, resulting in a very large periodic modulation of the refractive index. They are stable at temperatures as high as 800°C.

Item Type: Article
ISSNs: 0013-5194 (print)
Related URLs:
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 78291
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:58
URI: http://eprints.soton.ac.uk/id/eprint/78291

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