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:
Apr. 11, 1989
Filed:
Oct. 30, 1987
Applicant:
Inventors:
Paul Melman, Newton, MA (US);
Mark L Dakss, Sudbury, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9633 ; 350 9629 ; 350 9634 ;
Abstract
A fiber, with enhanced stimulated Raman scattering for use in light amplification, transmits light wave energy in a single mode. The fiber includes a cylindrical core of light transmitting material doped with a substantial concentration of GeO.sub.2, an inner cladding of light transmitting material doped with a sizable concentration of GeO.sub.2 (but less than the substantial concentration) surrounding the core, and an outer cladding of GeO.sub.2 -free material surrounding the inner cladding.