Measurement of the intensity and phase of ultraweak, ultrashort laser pulses: erratum Fittinghoff, David N. ; Walmsley, Ian A. ; Bowie, Jason L. ; Sweetser, John N. ; Jennings, Richard T. ; Krumbügel, Marco A. ; DeLong, Kenneth W. ; Trebino, Rick Abstract Publication: Optics Letters Pub Date: August 1996 DOI: 10.1364/OL.21.001313 Bibcode: 1996OptL...21.1313F