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. 16, 2002
Filed:
Jun. 19, 1997
Applicant:
Inventors:
Yasutake Ohishi, Mito, JP;
Elias Snitzer, Piscataway, NJ (US);
Assignee:
Rutgers University, Piscataway, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/30 ;
U.S. Cl.
CPC ...
H01S 3/30 ;
Abstract
An apparatus, composition, and method for producing an optical gain. The apparatus includes: an optical fiber having a core and a multiple cladding, the core being doped with Yb3+; a light source producing light at a wavelength in a range of from about 0.8 to about 1.06 microns to energize the yb3+ to produce laser action; and wherein the core is essentially devoid of Nd3+.