Multi-element sensor arrays of low-reflectivity, chirped apodized, 1 cm long, and 1 nm wide gratings have been fabricated interferometrically. Once exposed, points along each grating are re-illuminated with fringeless ultra-violet light to achieve <1% flat top ripple in reflectivity and no sidebands to -30 dB.
Fabricating fiber Bragg gratings with tailored spectral properties for strain sensor arrays using a post-exposure rescan technique
2002-01-01
330297 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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