Browsing by Subject "Photosensitivity"
Now showing items 1-4 of 4
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Article
Effects of Ge concentration, boron co-doping, and hydrogenation on fiber bragg grating characteristics
(2005)In this paper, we compare photosensitivity, refractive-index modulation depth, spectral bandwidth, and excess loss through the inscription of fiber Bragg gratings in unloaded and hydrogen-loaded fibers with low- or ...
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Article
Novel and Improved Methods of Writing Bragg Gratings with Phase Masks
(1995)The authors demonstrate the importance of spatial coherence of the writing beam for inscribing Bragg gratings with a phase mask. Bragg gratings were written using a normal excimer laser with the fiber placed at various ...
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Article
Superimposed grating wavelength division multiplexing in Ge-doped SiO2/Si planar waveguides
(1998)An improved model of wavelength division multiplexing (WDM) by superimposed gratings in planar waveguides has been developed. Based on this theory, principal design rules of N-channel WDM are established and a fanout ...
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Article
Superimposed multiple Bragg gratings
(1994)The authors demonstrate the inscription of seven Bragg gratings at the same location on a photosensitive fibre. These superimposed Bragg gratings were written over a 60nm span in the region of 1530nm with reflectivities ...