Relative-phase ambiguities in measurements of ultrashort pulses with well-separated multiple frequency components
A study is performed on relative-phase ambiguities in measurements of ultrashort pulses with well-separated multiple frequency components. It is shown that if a laser pulse consists of components that are well separated in the frequency domain, the self-referenced pulse characterization techniques are incapable of yielding the overall phase relation among the spectral components of the pulse. If a well-characterized reference pulse is available, spectral interferometry can determine the phase relation.
Keusters, D; Tan, HS; O'Shea, P; Zeek, E; Trebino, R; Warren, WS
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