A novel two-stage spectral compression structure employing a logarithmic DIF interconnected with an HNLF-NOLM
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Abstract:
A novel two-stage spectral compression structure which employs a logarithmic dispersion increasing fiber (DIF) interconnected with a highly nonlinear linear fiber-nonlinear optical loop mirror (HNLF-NOLM) is proposed and demonstrated by numerical simulation. The numerical simulation is implemented by solving the generalized nonlinear Schrödinger equation using split-step Fourier method, where the soliton number is in the range of 0.5≤N≤1.4. The results show that the spectra are well-compressed and low-pedestal, and the maximum spectral compression ratio (SCR) can reach 10.93 when N=1.4.
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This work has been supported by the National Basic Research Program of China （No.2012CB315701）, and the National Natural Science Foun- dation of China （No.61205109）.
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