Abstract
We demonstrate a simple method, based on blind deconvolution, for simultaneously measuring two arbitrary ultrashort laser pulses. The method is a variation of the well-known frequency-resolved optical gating (FROG) technique, and which we call “double-blind” FROG because it measures the two unknown pulses by simultaneously measuring two FROG spectrograms, but obtained from a single apparatus. It retrieves both pulses robustly by using a slightly modified FROG/blind-deconvolution algorithm. Using the polarization-gating FROG beam geometry, we simulate it using very complex pulses and demonstrate it using simple ultrashort pulses from a Ti:Sapphire laser. We find that double-blind FROG has no nontrivial ambiguities and works well.
© 2011 Optical Society of America
PDF ArticleMore Like This
Tsz Chun Wong, Justin Ratner, Peter Vaughan, Vikrant Chauhan, and Rick Trebino
FTuZ5 Frontiers in Optics (FiO) 2011
Antonio Consoli, Vikrant Chauhan, Jacob Cohen, Lina Xu, Peter Vaughan, F. J. Lopéz-Hernández, and Rick Trebino
FThD8 Frontiers in Optics (FiO) 2010
Vikrant Chauhan, Jacob Cohen, Lina Xu, Peter Vaughan, Antonio Consoli, Justin Ratner, Tsz Chun Wong, and Rick Trebino
CTuO4 CLEO: Science and Innovations (CLEO:S&I) 2011