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:
Mar. 10, 2009
Filed:
Aug. 08, 2006
Eric Chiu-tat Cheng, Torrance, CA (US);
Robert Rex Rice, Simi Valley, CA (US);
Michael Gordon Wickham, Rancho Palos Verdes, CA (US);
Mark Ernest Weber, Hawthorne, CA (US);
Eric Chiu-Tat Cheng, Torrance, CA (US);
Robert Rex Rice, Simi Valley, CA (US);
Michael Gordon Wickham, Rancho Palos Verdes, CA (US);
Mark Ernest Weber, Hawthorne, CA (US);
Northrop Grumman Space & Mission Systems Corp., Los Angeles, CA (US);
Abstract
A pulsed coherent fiber array laser system that includes a beam generating sub-system that provides a signal pulse beam having pulses of the desired duration that is split into several fiber channels. Optical leakage between the pulses in each split beam is measured and locked to a reference beam by a phase sensing circuit and phase adjusters so that the phase of each fiber pulsed beam is aligned with the phase of the reference beam. A pulse clipper or filter is employed to remove the pulses in the fiber beams so that they do not saturate the phase sensing circuit. The beam generating sub-system can employ any suitable combination of devices to generate the signal beam and the reference beam, including continuous wave master oscillators, amplitude modulators, frequency shifters, injection seed oscillators, Q-switched lasers, reference oscillators, frequency lockers, wavelength division multiplexers, time gated switches, etc.