Using phase retrieval to measure the intensity and phase of ultrashort pulses: frequency-resolved optical gating
نویسندگان
چکیده
منابع مشابه
Using phase retrieval to measure the intensity and phase of ultrashort pulses: frequency-resolved optical gating
Received September 16, 1992; accepted October 9, 1992; revised manuscript received December 1, 1992 We recently introduced a new technique, frequency-resolved optical gating (FROG), for directly determining the full intensity I(t) and phase p(t) of a single femtosecond pulse. By using almost any instantaneous nonlinearoptical interaction of two replicas of the ultrashort pulse to be measured, F...
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In the following paper, I compare and contrast methods of measuring the amplitude and phase of a short optical pulse over time with techniques that attempt a similar measurement of a optical field over space. Both approaches benefit from considering the energy of an optical wave in a phase space representation, whether in a joint time-frequency representation for short pulses or a space-spatial...
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Ultrashort-laser-pulse retrieval in frequency-resolved optical gating has previously required an iterative algorithm. Here, however, we show that a computational neural network can directly and rapidly recover the intensity and phase of a pulse.
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We summarize the problem of measuring an ultrashort laser pulse and describe in detail a technique that completely characterizes a pulse in time: frequency-resolved optical gating. Emphasis is placed on the choice of experimental beam geometry and the implementation of the iterative phase-retrieval algorithm that together yield an accurate measurement of the pulse time-dependent intensity and p...
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We measure the intensity and phase of ultrashort pulses from a self-mode-locked Ti:sapphire laser using the recently developed technique of frequency-resolved optical gating. These results represent to our knowledge the shortest complete optical waveform characterization measurements performed to date. We also verify recent theoretical calculations that predict that the main limitation on the p...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America A
سال: 1993
ISSN: 1084-7529,1520-8532
DOI: 10.1364/josaa.10.001101