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Method and apparatus for controlling carrier envelope phase

United States Patent

December 6, 2011
View the Complete Patent at the US Patent & Trademark Office
A chirped pulse amplification laser system. The system generally comprises a laser source, a pulse modification apparatus including first and second pulse modification elements separated by a separation distance, a positioning element, a measurement device, and a feedback controller. The laser source is operable to generate a laser pulse and the pulse modification apparatus operable to modify at least a portion of the laser pulse. The positioning element is operable to reposition at least a portion of the pulse modification apparatus to vary the separation distance. The measurement device is operable to measure the carrier envelope phase of the generated laser pulse and the feedback controller is operable to control the positioning element based on the measured carrier envelope phase to vary the separation distance of the pulse modification elements and control the carrier envelope phase of laser pulses generated by the laser source.
Chang; Zenghu (Manhattan, KS), Li; Chengquan (Sunnyvale, CA), Moon; Eric (Manhattan, KS)
Kansas State University Research Foundation (Manhattan, KS)
12/ 306,348
June 21, 2007
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT PROGRAM The present invention was developed with support from the U.S. government under Grant No. DE-FG02-86ER13491 awarded by the Department of Energy and Grant No. 0457269 awarded by the National Science Foundation. Accordingly, the U.S. government has certain rights in the present invention.