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, 2012
Filed:
Aug. 27, 2008
Martin A. Putnam, Cheshire, CT (US);
Robert N. Brucato, Waterbury, CT (US);
Paul E. Sanders, Madison, CT (US);
Timothy J. Bailey, Longmeadow, MA (US);
James M. Sullivan, Manchester, CT (US);
Alan D. Kersey, South Glastonbury, CT (US);
Martin A. Putnam, Cheshire, CT (US);
Robert N. Brucato, Waterbury, CT (US);
Paul E. Sanders, Madison, CT (US);
Timothy J. Bailey, Longmeadow, MA (US);
James M. Sullivan, Manchester, CT (US);
Alan D. Kersey, South Glastonbury, CT (US);
Weatherford/LAMB, Inc., Houston, TX (US);
Abstract
A large diameter optical waveguide, grating, and laser includes a waveguide having at least one core surrounded by a cladding, the core propagating light in substantially a few transverse spatial modes; and having an outer waveguide dimension of said waveguide being greater than about 0.3 mm. At least one Bragg grating may be impressed in the waveguide. The waveguide may be axially compressed which causes the length of the waveguide to decrease without buckling. The waveguide may be used for any application where a waveguide needs to be compression tuned. Also, the waveguide exhibits lower mode coupling from the core to the cladding and allows for higher optical power to be used when writing gratings without damaging the waveguide. The waveguide may resemble a short 'block' or a longer 'cane' type, depending on the application and dimensions used.