19 June 2003 Real-time synthesis and detection of ultrafast optical waveform
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Proceedings Volume 4978, Commercial and Biomedical Applications of Ultrafast Lasers III; (2003) https://doi.org/10.1117/12.484211
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
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.
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Dmitriy Panasenko, R. Rokitski, Nikola Alic, Dan M. Marom, Yuri T. Mazurenko, Pang Chen Sun, Yeshaiahu Fainman, "Real-time synthesis and detection of ultrafast optical waveform", Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); doi: 10.1117/12.484211; https://doi.org/10.1117/12.484211
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