Pulse retrieval in frequency-resolved optical gating based on the method of generalized projections

We use the algorithmic method of generalized projections (GP's) to retrieve the intensity and phase of an ultrashort laser pulse from the experimental trace in frequency-resolved optical gating (FROG). Using simulations, we show that the use of GP's improves significantly the convergence p...

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Bibliographic Details
Published in:Optics letters 1994-12, Vol.19 (24), p.2152-2154
Main Authors: Delong, K W, Fittinghoff, D N, Trebino, R, Kohler, B, Wilson, K
Format: Article
Language:English
Subjects:
426002 - Engineering- Lasers & Masers- (1990-)
ALGORITHMS
AMPLITUDES
BEAM MONITORING
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
ENGINEERING
GATING CIRCUITS
INFRARED RADIATION
LASER RADIATION
MATHEMATICAL LOGIC
MONITORING
POLARIZATION
PULSE TECHNIQUES
RADIATIONS
SIMULATION
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Summary:We use the algorithmic method of generalized projections (GP's) to retrieve the intensity and phase of an ultrashort laser pulse from the experimental trace in frequency-resolved optical gating (FROG). Using simulations, we show that the use of GP's improves significantly the convergence properties of the algorithm over the basic FROG algorithm. In experimental measurements, the GP-based algorithm achieves significantly lower errors than previous algorithms. The use of GP's also permits the inclusion of an arbitrary material response function in the FROG problem.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.19.002152