Optical Amplification and Reshaping Based on Rogue Wave in the Femtosecond Regime
نویسندگان
چکیده
Based on the higher order nonlinear Schrödinger equation, the amplification and the reshaping of ultrashort pulses are investigated. The numerical results show that the direct amplification of femtosecond pulses can be achieved by injecting a continuous wave (CW) and filtering the CW at suitable positions in the presence of higher-order dispersion and nonlinear effects. The combination of continuous wave pump and spectral filter placed suitably in fiber plays the role of the amplifier, which can be used to long-haul transmission of pulses. As an example, long-haul transmission with four amplification periods is demonstrated. The effects of higher-order dispersion and Raman effect on the long-haul transmission of pulses are also discussed.
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