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:
Mar. 04, 2003
Filed:
Feb. 23, 2001
Applicant:
Inventors:
Lew Goldberg, Fairfax, VA (US);
Marc LeFlohic, Saint Quey Perros, FR;
Assignee:
Keopsys, Inc., Fairfax, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/42 ;
U.S. Cl.
CPC ...
G02B 6/42 ;
Abstract
A method and apparatus of coupling pump light from an extended source to an optical waveguide is disclosed. The coupling is preferably achieved through the use of a v-groove in the optical waveguide and an angle-selective mechanism that enables the angular distributions of the pump light to be optimized for optimal coupling via facets of the v-groove. Embodiments of the apparatus use a wedge, a double wedge, mirrors, or composite lenses to affect the angle selection of the pump light.