Methods of fabricating a regenerated optical waveguide grating

Details Methods of fabricating a regenerated optical waveguide grating Methods of fabricating a regenerated optical waveguide grating

2005-06-14

2005-06-14

Sanghavi, Hemang (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

Reexamination Certificate

active

06907165

ABSTRACT:
A regenerated optical waveguide is fabricated by hydrogenating an optical waveguide (12) and exposing a grating section (28) to a UV laser beam interference fringe pattern (14) to form a Type I grating. The grating section (28) 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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