L. Gallmann et al., Characterization of sub-6-fs optical pulses with spectral phase interferometry for direct electric-field reconstruction, OPTICS LETT, 24(18), 1999, pp. 1314-1316
We demonstrate spectral phase interferometry for direct electric-field reco
nstruction (SPIDER) as a novel method to characterize sub-6-fs pulses with
nanojoule pulse energy. SPIDER reconstructs pulse phase and amplitude from
a measurement of only two optical spectra by use of a fast noniterative alg
orithm. SPIDER is well suited to the measurement of ultrabroadband pulses b
ecause it is quite insensitive to crystal phase-matching bandwidth and to u
nknown detector spectral responsivity. Moreover, it combines highly accurat
e pulse-shape measurement with the potential for online laser system diagno
stics at video refresh rates. (C) 1999 Optical Society of America. OCIS cod
es: 320.0320, 320.5550, 320.7100, 120.5050, 120.3180.