Measurement of the intensity and phase of ultraweak, ultrashort laser pulses
- 15 June 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (12) , 884-886
- https://doi.org/10.1364/ol.21.000884
Abstract
We show that frequency-resolved optical gating combined with spectral interferometry yields an extremely sensitive and general method for temporal characterization of nearly arbitrarily weak ultrashort pulses even when the reference pulses is not transform limited. We experimentally demonstrate measurement of the full time-dependent intensity and phase of a train of pulses with an average energy of 42 zeptojoules (42 × 10−21 J), or less than one photon per pulse.Keywords
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