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Optimizing fiber Bragg gratings using a genetic algorithm with fabrication-constraint encoding

✍ Scribed by Tremblay, G.; Gillet, J.-N.; Sheng, Y.; Bernier, M.; Paul-Hus, G.


Book ID
115371559
Publisher
Optical Society of America
Year
2005
Tongue
English
Weight
151 KB
Volume
23
Category
Article
ISSN
0733-8724

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A new exposure scheme for fabricating apodised ΓΏber Bragg gratings by the use of a uniform phase mask and a Gaussian beam laser is demonstrated. Average refractive index is kept nearly constant along the grating to derive a side lobe suppression of 20 dB in the shorter wavelength. This scheme allows