Apodised in-fibre Bragg grating reflectors photoimprinted using a phase mask
- 2 February 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (3), 223-225
- https://doi.org/10.1049/el:19950150
Abstract
An apodised in-fibre Bragg grating reflector is fabricated using the phase mask photoimprinting technique. The reflector has a centre wavelength of 1550 nm, a bandwidth of 0.22 nm and a peak reflectivity of 90%. At 0.4 nm (50 GHz) from the centre wavelength the reflectivity is 40 dB lower than the peak reflectivity; this is an improvement of more than 20 dB over an unapodised Bragg grating reflector with similar bandwidth and peak reflectivity.Keywords
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