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7 January 2015 Numerical simulations of spectral broadening in all-normal dispersion photonic crystal fiber at various pump pulse conditions
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Abstract
Supercontinuum (SC) generation contained in the normal dispersion range of an optical fiber has been shown to be limited primarily by the available peak power and length of the pump pulse. In this work, we numerically investigate the SC spectral width and flatness for various pump pulse conditions in a nonlinear, all-solid, soft-glass, photonic crystal fiber (PCF) with a flattened dispersion profile. We assume a range of pump pulse parameters with pulse lengths between 250 and 100 fs (60 to 150 kW of peak power), and input pulse energies between 10 and 30 nJ, numerically reaching a maximum SC width of 800 to 2600 nm. The presented theoretical study provides a guideline for the selection of a fiber laser pump source, or in other words, it enables one to expect the extent of spectral broadening in the developed, all-normal dispersion PCF, when presently available fiber laser pump pulse parameters are assumed.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2015/$25.00 © 2015 SPIE
Bartlomiej Siwicki, Mariusz Klimczak, Grzegorz Sobon, Jarosław Sotor, Dariusz Pysz, Ryszard Stepien, Krzysztof Abramski, and Ryszard Buczynski "Numerical simulations of spectral broadening in all-normal dispersion photonic crystal fiber at various pump pulse conditions," Optical Engineering 54(1), 016102 (7 January 2015). https://doi.org/10.1117/1.OE.54.1.016102
Published: 7 January 2015
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