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:
Jun. 20, 2006
Filed:
Jan. 20, 2004
Robert R. Rice, Simi Valley, CA (US);
Michael G. Wickham, Rancho Palos Verdes, CA (US);
Eric C. T. Cheung, Torrance, CA (US);
Hiroshi Komine, Torrance, CA (US);
Joshua E. Rothenberg, Los Angeles, CA (US);
Robert R. Rice, Simi Valley, CA (US);
Michael G. Wickham, Rancho Palos Verdes, CA (US);
Eric C. T. Cheung, Torrance, CA (US);
Hiroshi Komine, Torrance, CA (US);
Joshua E. Rothenberg, Los Angeles, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A laser array architecture scalable to very high powers by fiber amplifiers, but in which the output wavelength is selectable, and not restricted by the wavelengths usually inherent in the choice of fiber materials. A pump beam at a first frequency is amplified in the fiber amplifier array and is mixed with a secondary beam at a second frequency to yield a frequency difference signal from each of an array of optical parametric amplifiers. A phase detection and correction system maintains the array of outputs from the amplifiers in phase coherency, resulting in a high power output at the desired wavelength. A degenerate form of the architecture is disclosed in an alternate embodiment, and a third embodiment employs dual wavelength fiber amplifiers to obtain an output at a desired difference frequency.