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Proceedings Paper

Real-time synthesis and detection of ultrafast optical waveform
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Paper Abstract

We describe several concepts for real time shaping and detection of femtosecond laser pulses using optical nonlinearities. Cascaded second order wave mixing is used for real-time conversion of spatial-domain images to ultrafast time-domain optical waveforms. We experimentally demonstrate a cascaded nonlinearity arrangement allowing generation of complex amplitude femtosecond waveforms with high fidelity and good conversion efficiency. Single-shot, phase-sensitive detection of femtosecond pulses is demonstrated using both nonlinear wave-mixing and 2-photon absorption in semiconductor detector arrays. Using commercial silicon charge-coupled device (CCD), the latter approach allows detection of broadband ultrashort signals in the important wavelength range around 1.5 microns without phase-matching limitations. Finally we describe an approach to characterization of the multimode fiber using ultrashort pulse interferometry.

Paper Details

Date Published: 19 June 2003
PDF: 12 pages
Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); doi: 10.1117/12.484211
Show Author Affiliations
Dmitriy Panasenko, Univ. of California/San Diego (United States)
R. Rokitski, Univ. of California/San Diego (United States)
Nikola Alic, Univ. of California/San Diego (United States)
Dan M. Marom, Univ. of California/San Diego (United States)
Yuri T. Mazurenko, Univ. of California/San Diego (United States)
Pang Chen Sun, Univ. of California/San Diego (United States)
Yeshaiahu Fainman, Univ. of California/San Diego (United States)


Published in SPIE Proceedings Vol. 4978:
Commercial and Biomedical Applications of Ultrafast Lasers III
Joseph Neev; Andreas Ostendorf; Christopher B. Schaffer, Editor(s)

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