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US 5,620,495 AGranted
Formation of gratings in polymer-coated optical fibers
AssigneeLucent Technologies Inc.
InventorsJennifer Aspell, Daryl Inniss, Valerie J. Kuck, Mark A. Paczkowski, Debra A. Simoff
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Abstract
Recognizing the rate-determining nature of the coating removal and recoating steps, applicants have demonstrated that with proper combination of low absorbing polymer, glass and low intensity radiation, UV-induced gratings can be side-written into polymer coated fibers without removing the polymer, thus permitting up the possibility of high speed fabrication of fiber gratings.
Claims5
A method of forming a grating in an optical fiber comprising the steps of:
- providing a polymer-coated optical fiber, said fiber having a cladding and a photosensitive core;
- without removing said polymer, exposing said core by side writing through said polymer and cladding, to a pattern of ultraviolet radiation corresponding to said grating.
Dependencies are inferred from the claim text.