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:
Jan. 11, 2005
Filed:
Dec. 11, 2002
Hiroshi Komine, Torrance, CA (US);
Hiroshi Komine, Torrance, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
An optical system () that couples pump light () into a signal fiber () of a fiber array laser/amplifier. The system () includes a tapered light guide (TLG) () optically coupled to the signal fiber () so that the signal light propagates into a single-mode core () extending through the TLG (). The TLG () includes a diffraction grating aperture () through which the pump light () is coupled into the TLG (). An array of diode emitters () is positioned adjacent to the diffraction grating aperture () so that the pump light () is diffracted into the TLG (). The pump light () is reflected off of the interface () between the TLG () and air. The angle of the pump light () as it is reflected off of an interface () between the TLG () and air decreases so that the pump light () is contained within the signal fiber ().