Optimised square passband fibre Bragg grating filter with in-band flat group delay response
- 1 January 1998
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 34 (8), 800-802
- https://doi.org/10.1049/el:19980528
Abstract
Through a controlled apodised sinc-shaped refractive index profile, an optimised square reflection band Bragg grating filter is demonstrated. The filter is 5 cm long and has a flat dispersion profile within the photonic bandgap and an edge steepness of 7.9 dB/GHz.Keywords
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