期刊
OPTICS EXPRESS
卷 19, 期 20, 页码 18754-18773出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.018754
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- U.S. Air Force Office of Scientific Research (AFOSR) [FA9550-09-1-0233, FA9550-05-1-0180]
We numerically investigate supercontinuum generation in quasi-phase-matched waveguides using a single-envelope approach to capture second and third order nonlinear processes involved in the generation of octave-spanning spectra. Simulations are shown to agree with experimental results in reverse-proton-exchanged lithium-niobate waveguides. The competition between chi((2)) and chi((3)) self phase modulation effects is discussed. Chirped quasi-phasematched gratings and stimulated Raman scattering are shown to enhance spectral broadening, and the pulse dynamics involved in the broadening processes are explained. (C) 2011 Optical Society of America
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