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:
Dec. 27, 1994
Filed:
May. 08, 1992
Applicant:
Inventors:
Philip R Hemmer, Fitchburg, MA (US);
Jonathan S Kane, Wayland, MA (US);
John J Donoghue, South Boston, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372-3 ; 372-9 ; 372 69 ; 372 99 ;
Abstract
A three-level atomic system in a resonance Raman configuration is provided, and self-pumped optical phase conjugation is performed in which the pumps are self-induced as standing waves in a Raman laser. Self-pumped reflectivities approaching five percent are obtained for input intensities of 20 watts per square cm. This low optical input intensity combined with predicted submicrosecond response times indicates that the resonant Raman interaction may provide the basis for a promising new class of non-linear optical materials.