Aston Photonic Technologies Limited

John A R Williams

Ian Bennion

Lin Zhang

Yu Liu

A regenerated optical waveguide is fabricated by hydrogenating an optical waveguide () and exposing a grating section () to a UV laser beam interference fringe pattern () to form a Type I grating. The grating section () is exposed for a second period to erase the Type I grating, and then a third period to cause a regenerated optical waveguide grating to form. The resonant wavelength increases during the third period from being substantially the same as the final wavelength of the Type I grating.

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Birmingham, United Kingdom

John A R Williams