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

Journal Article · Thu Dec 15 00:00:00 EST 1994 · Optics Letters; (United States)

DOI:https://doi.org/10.1364/OL.19.002152· OSTI ID:6489783

DeLong, K W; Fittinghoff, D N; Trebino, R ^[1]; Kohler, B; Wilson, K ^[2]

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1. Sandia National Laboratories, MS 9057, Livermore, California 94551-0969 (United States)
2. Department of Chemistry, MS 0339, University of California, San Diego, La Jolla, California 92093 (United States)

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.

• OSTI ID: 6489783
• Journal Information: Optics Letters; (United States), Vol. 19:24; ISSN 0146-9592
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER RADIATION
PULSE TECHNIQUES
ALGORITHMS
AMPLITUDES
BEAM MONITORING
GATING CIRCUITS
INFRARED RADIATION
POLARIZATION
SIMULATION
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
MATHEMATICAL LOGIC
MONITORING
RADIATIONS
426002* - Engineering- Lasers & Masers- (1990-)