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Renault A Kandula DZ Witte S Wolf AL Zinkstok RT Hogervorst W Eikema KS 《Optics letters》2007,32(16):2363-2365
The phase stability of broadband (280 nm bandwidth) terawatt-class parametric amplification was measured, for the first time to our knowledge, with a combination of spatial and spectral interferometry. Measurements at four different wavelengths from 750 to 900 nm were performed in combination with numerical modeling. The phase stability is better than 1/23 rms of an optical cycle for all the measured wavelengths, depending on the phase-matching conditions in the amplifier. 相似文献
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S. Witte R.T. Zinkstok W. Hogervorst K.S.E. Eikema 《Applied physics. B, Lasers and optics》2007,87(4):677-684
We present a systematic numerical design and performance study of an ultra-broadband noncollinear optical parametric chirped
pulse amplification (NOPCPA) system. Using a split-step Fourier approach, we model a three-stage amplifier system which is
designed for the generation of 7 fs pulses with multi-terawatt peak intensity. The numerical results are compared with recent
experimental data. Several important aspects and design parameters specific to NOPCPA are identified, and the values of these
parameters required to achieve optimal working conditions are investigated. We identify and analyze wavelength-dependent gain
saturation effects, which are specific to NOPCPA and have a strong influence on the parametric amplification process.
PACS 42.65.Yj; 42.65.Re 相似文献
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