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. 22, 2016
Filed:
Feb. 04, 2010
Michal Lipson, Ithaca, NY (US);
Alexander Gaeta, Ithaca, NY (US);
Reza Salem, Columbia, MD (US);
Mark Foster, Sparks Glencoe, MD (US);
David Geraghty, Menlo Park, CA (US);
Amy Foster, Sparks Glencoe, MD (US);
Michal Lipson, Ithaca, NY (US);
Alexander Gaeta, Ithaca, NY (US);
Reza Salem, Columbia, MD (US);
Mark Foster, Sparks Glencoe, MD (US);
David Geraghty, Menlo Park, CA (US);
Amy Foster, Sparks Glencoe, MD (US);
Cornell University, Ithaca, NY (US);
Abstract
Systems and methods are provided for ultrafast optical waveform sampling based on temporal stretching of an input signal waveform. Temporal stretching is performed using a time lens based on four-wave mixing in a nonlinear medium. The signal is passed through an input dispersive element. The dispersed signal is sent into the time lens, which comprises a chirped pump pulse and a nonlinear medium. The chirped pump pulse is combined with the signal. The four-wave mixing process occurs in the nonlinear device or medium, which results in the generation of a signal at a new optical frequency (idler). The idler is spectrally separated from the signal and pump pulse using a bandpass filter and sent into an output dispersive element. The output dispersive element is longer than the input dispersive element and the temporal stretching factor is given by the ratio between the dispersions of these two elements.