1 July 2008 Supercontinuum generation in photonic crystal fibers with a normal dispersion pump pulse near the zero-dispersion wavelength
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Optical Engineering, 47(7), 075005 (2008). doi:10.1117/1.2956387
Abstract
The onset of supercontinuum generation in a photonic crystal fiber (PCF) is investigated experimentally and numerically as a function of pump optical power with a femtosecond pulse. The pump pulse wavelength is positioned in the normal-dispersion regime close to the zero-dispersion wavelength (ZDW) of the PCF. When the pump power is low, the self phase modulation (SPM) is the dominant nonlinear process. With the increasing pump power, the primary mechanism of spectral broadening is identified as the combined action of stimulated Raman scattering (SRS) and parametric four-wave mixing (FWM). In the experiment, we have also observed the anti-Stokes Raman component, which reveals the importance of the fact that the pump pulses are positioned near the ZDW. Third-order dispersion (TOD) and Raman self frequency shift (RSS) also contribute to the supercontinuum generation. Good agreement between experiment and simulation is obtained.
Shumin Zhang, Xiufeng Yang, Fuyun Lu, Yan Dong Gong, Xiulan Meng, "Supercontinuum generation in photonic crystal fibers with a normal dispersion pump pulse near the zero-dispersion wavelength," Optical Engineering 47(7), 075005 (1 July 2008). http://dx.doi.org/10.1117/1.2956387
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KEYWORDS
Dispersion

Scanning probe microscopy

Raman spectroscopy

Received signal strength

Photonic crystal fibers

Supercontinuum generation

Solitons

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