|Institution:||University of Rochester|
|Full text PDF:||http://hdl.handle.net/1802/32432|
In this thesis I present an instrument based on thetechnique of spectral phase interferometry for direct electricfield reconstruction (SPIDER) which can characterize ultrashortoptical pulses at a rate of 20 Hz. This instrument is calledvideo-rate SPIDER and has, to my knowledge, the fastestcharacterization rate reported to date. Thepulse characterization can be performed in either the spectral ortemporal domain. This gives this instrument a large degree offlexibility in its possible applications, ranging from a real-timediagnostic tool to real-time feedback control of a laser system. The accuracy of the temporal and spectralreconstruction were both verified experimentally. The results fromthese experiments prove video-rate SPIDER can reconstruct pulseswith errors less than 6% in the reconstructedpulsewidth.