The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2006
Filed:
Mar. 18, 2002
Timothy J. Bailey, Longmeadow, MA (US);
Robert N. Brucato, Cheshire, CT (US);
Alan D. Kersey, South Glastonbury, CT (US);
Martin A. Putnam, Cheshire, CT (US);
Paul Sanders, Madison, CT (US);
James Sullivan, East Hampton, CT (US);
Timothy J. Bailey, Longmeadow, MA (US);
Robert N. Brucato, Cheshire, CT (US);
Alan D. Kersey, South Glastonbury, CT (US);
Martin A. Putnam, Cheshire, CT (US);
Paul Sanders, Madison, CT (US);
James Sullivan, East Hampton, CT (US);
CiDRA Corporation, Wallingford, CT (US);
Abstract
A large diameter D-shaped optical waveguide device, includes an optional circular waveguide portionand a D-shaped waveguide portionhaving at least one coresurrounded by a cladding. A portion of the waveguide devicehas a generally D-shaped cross-section and has transverse waveguide dimension dgreater than about 0.3 mm. At least one Bragg gratingmay be impressed in the waveguideand/or more than one grating or pair of gratings may be used and more than one core may be used. The deviceprovides a sturdy waveguide platform for coupling light into and out of waveguides and for attachment and alignment to other waveguides, for single and multi-core applications. The core and/or claddingmay be doped with a rare-earth dopant and/or may be photosensitive. At least a portion of the coremay be doped between a pair of gratingsto form a fiber laser or the gratingor may be constructed as a tunable DFB fiber laser or an interactive fiber laser within the waveguideThe waveguide may resemble a short 'block' or a longer 'cane' type, depending on the application and dimensions used.