Abstract.
We propose a new criterion for the assessment of ultrashort pulse reconstruction quality. Our idea is based on the use of a two-dimensional Wigner representation of the electric field. This allows introducing a single measure to represent the quality of both phase and amplitude retrieval. The new criterion is employed to examine two contemporary pulse characterization techniques: FROG (Frequency Resolved Optical Gating) and SPIDER (Spectral Interferometry for Direct Electric-field Reconstruction). For SPIDER, the influence of reference pulse stretching on the quality of phase extraction is investigated. Next, we ascertain the limitations in the use of a Fabri-Perrot etalon in the SPIDER apparatus for producing delayed pulse replicas. For the FROG technique we examine the impact of the doubling crystal orientation on the quality of the amplitude-phase retrieval of sub-5-fs pulses. The introduced criterion is also applied to study the respective sensitivity of FROG and SPIDERto the limited phase-matching bandwidth of the non-linear medium and detector noise.
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Received: 7 October 1999 / Revised version: 21 April 2000 / Published online: 24 May 2000
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Yeremenko, S., Baltuška, A., Pshenichnikov, M. et al. The criterion of pulse reconstruction quality based on Wigner representation . Appl Phys B 70 (Suppl 1), S109–S117 (2000). https://doi.org/10.1007/s003400000362
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DOI: https://doi.org/10.1007/s003400000362