首页|Numerical simulation of the heavily Ge-doped polariza-tion-maintaining fiber with normal dispersion
Numerical simulation of the heavily Ge-doped polariza-tion-maintaining fiber with normal dispersion
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The heavily germanium(Ge)-doped silica fiber assisted by two air holes in the cladding exhibits high nonlinearity and birefringence,low loss and normal group velocity dispersion(GVD)for two fundamental modes(FMs).When the 1 920 nm and 0.1 ps pump pulse with 100 kW peak power is coupled into the 0.5-m-long fiber and polarized along one of two principle axes,the generated spectra can cover the wavelength range around 1 000-2 500 nm at-20 dB.Fur-thermore,the output pulse has an excellent coherence in the whole wavelength range.
LI Hongwei、WANG Chuncan、AN Haitao
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Key Laboratory of All Optical Network and Advanced Telecommunication Network,Ministry of Education,Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044,China
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